Report of an Interview – Republished From the ECOreport

The attached piece, written by Roy Hales and first published in the ECOreport on February 3, 2015 (www.theECOreport.com) was based on a voice interview he held with me on January 31st. It came about when Roy asked me if I would be willing to comment on the recent report issued by DOE’s Energy Information Administration (EIA) that presented figures on new electrical generating capacity installed in the U.S. in 2014. I agreed to do so and the interview (to be radio broadcast) and the attached article are the results. The article is republished with Roy’s permission and speaks for itself.
(Note: the photos published with the original piece did not reproduce in this republished copy and can be found at the web site referenced above.)

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RENEWABLES
THE GROWTH OF US RENEWABLES DURING 2014 AS A VINDICATION
FEBRUARY 3, 2015 ROY L HALES
By Roy L Hales

It has been 37 years since Dr Allan Hoffman gave President Jimmy Carter the plan that could have started America’s renewable revolution. The idea was shelved after Reagan was elected. Hoffman waited, as administration after administration ignored the potential, until Barack Obama was elected. The retired senior Department of Energy executive views the growth of US renewables during 2014 as a vindication of what he and his colleagues saw decades ago.

More Than Half Of The New Capacity

(Note: Clean Technica estimates that 54.8% of the installations made in December came from these two sectors and 53.3% of the installations for the year.)

“If the Clean Technica chart (which includes an estimate for non-utility solar) is accurate, more than half of the new capacity added last year is from renewables. This is very significant. I pinch myself when I see these numbers and I am very grateful to see the transition move to the extent it has,” said Hoffman.

Though natural gas was still the leading single energy source, in terms of installations during 2014, its 7.5 GW of added capacity is overshadowed by close to 10 GW from the renewable sector.

Natural Gas Will Be With Us For Decades

Photo Credit: US Electricity Capacity Added in 2014 by Clean Techncia
“There is no doubt that natural gas will be with us for decades, but I don’t see it as a long term option,” said Hoffman. “Right now it is exciting. We will probably use more natural gas in transportation. It is perfectly suited for that, if you build the right kind of car, but I think electrification is the answer for most forms of transportation in the future.”

He used the automotive sector to illustrate what is happening with fossil fuels. The trend is to electrification, but EVs are not yet ready to take over. Around 70% of car trips, in the US, are less than 40 miles. EVs can supply this, but there is still a need for a gas or diesel back-up on longer trips.

“There are a lot of vested interests protecting fossil fuel use. You are going to see a determined battle from the petroleum industry, who want to continue their role in transportation. That doesn’t change overnight. Cars are on the road for an average of 10 to 12 years in the United States. They need petroleum, so that’s going to be with us for a while,” said Hoffman. “But I don’t think the fossil fuel industry can win this battle over the long term and the smart companies will be switching over eventually.”

He added, “We will still have fossil fuels in 2050, but it will be a diminishing fraction. We will move increasingly to electrification. Our children and grandchildren will eventually drive electric cars.”

Alternatives, like biofuels and biojet diesel, will eventually replace fossil fuels in sectors like aviation. The US Airforce is already moving in that direction. Even the US Navy, which uses bunker fuel to power many of its ships, is switching over.

The Real Future Of This Sector Is Offshore

The 4 GW of wind capacity added in 2014 is impressive, but Hoffman believes the real future of this sector is offshore.

“I consider offshore wind to be the most important and exciting emerging renewable technology. When you go offshore, the winds are stronger and more steady. That’s really critical because more steady winds produce a higher capacity factor. A larger fraction of the potential is realized in generating energy, which is really the ultimate test. The other thing is that with higher speeds, the economics become much better. The energy extracted from the wind goes as the third power of the wind speed. So if you double the wind speed, you get eight times the power out of that machine,” said Hoffman.

Developers can also build larger turbines than on land. There are a lot of logistics involved, but 6 to 7 MW turbines are presently common offshore. Hoffman has seen plans for 10MW to 15MW and even a 20 MW turbine.

“Of course there will be hurricanes and things like that and these machines have to hold up under those conditions, but I have confidence we can do that.”

Photo Credit: Total US Capacity at the end of 2014 by Clean Techncia
“The resource available in offshore wind is very, very large. Look at the United States. It has four coastal regions: The East Coast; The West Coast; The Gulf Coast; and the Great Lakes Coast. There is a lot of wind available.”

There is a potential for close to 4,000 GW of capacity, according to the National Renewable Energy Laboratory’s (2010) report “Large-Scale Offshore Wind Power In The United States.” This figure needs to be reduced, by subtracting areas (like shipping lanes) where you cannot put wind turbines, but the potential is still HUGE.

“To put this number in perspective, the United States’ present potential for generating electricity is just over 1,000 GW,” said Hoffman. “So even if only a fraction of offshore potential is realized, we have a major source of energy coming online in the future.”

Though the US has been slow to adopt offshore wind, Hofffman expects that to change in the next few years. It will start on the East Coast, where the winds are strong and a large part of the population lives.

New Solar Capacity

Photo Credit: Powerfilm Solar Panel by Stephan Ridgway via Flickr (CC By SA, 2.0 Liicense)
The 5.2 GW of new solar capacity added in 2014 is also impressive, but just a beginning. The potential for growth in this sector is enormous.

“Solar may be the fastest growing energy source in the world today. Look at what’s happening in Germany. There are days when more than half the electricity comes from solar and Germany is not a particularly sunny country, said Hoffman. “So I can see that happening in the United States. States like Nevada, Arizona have an incredible solar input.”

Resistance From Utilities

“There has been a lot of resistance from utilities. They have resisted net metering and other simplified connections to the grid because they see it as diminishing the importance of their business model. They make a lot of money selling energy at peak hours, when electricity is more expensive. If solar provides energy during those peak hours, their business model is upset. They are going to resist it for as long as they can because change is hard for people to accept.”

This battle is already over in Germany, where the four major utilities have now switched over to become providers of solar energy. They lease solar systems, maintain them and are now offering energy storage for homes.

Hoffman perceives the utility model of a centralized grid as a relic from the past. There will be more of a variety of systems in the future. Some people will utilize battery storage to be independent of the grid, there will be more local microgrids, regional grids and possibly even a global multinational grid.

“I have no question that this is happening. It’s happening as we speak. It will unfold over the next decades, but I think it is inevitable,” said Hoffman.

Though he believes both nuclear energy and natural gas will continue for several decades, Hoffman predicts their importance will diminish. Environmental pressures and economic realities are pushing the US into renewables.

“Eventually Congress will have to move in this direction, even Republicans can get the message,” he said. “What’s going to happen is that people are going to be talking to their members of congress. The business community has a major impact on Congress and they are going to see it is in their interest to move ahead with a clean energy system.”

US Needs To Adopt An Energy Plan

Photo Credit: Library of Congress by Juan Llanos via Flickr (CC BY SA, 2.0 License)
The US needs to adopt an energy plan, so that people have certainty about the future. Businesses need it, so they can formulate their own strategies.

“Climate Change is real and it has adverse effects, but they are long term effects,” said Hoffman. “Someone has to do the long term thinking to protect this generation as well as future generations from having to deal with it under less desirable conditions.”

Despite the resistance in Congress, Hoffman believes a carbon tax is inevitable. “Putting a price on emissions” is probably the best was to reduce them. The revenues can be used to reduce other taxes, like income tax, or redistributed to low income persons who are adversely affected by increased energy costs due to a carbon tax.

“I think there are a lot of tradeoffs on a carbon tax that would not only address carbon emissions, but that could also provide revenues that can be applied to other aspects of our economy,” said Hoffman.

“I see the early stages of what I consider an inevitable transition away from traditional energy sources, largely fossil fuel sources but also including nuclear to some extent, to an increasing reliance on renewable energy in the form of wind, solar, geothermal, biomass and eventually ocean energy as well.”

“I have been saying this was inevitable for many years, but for a long time it was hard to get people to accept that. I think we’re seeing it happen. When you look at the numbers, both from the Energy Information Administration (EIA) of the Department of Energy and the Federal Energy Regularity Commission (FERC) you can see that the transition is beginning to take place. The new capacity that is coming online is largely renewables.”

(Top Photo Credit: Photo Credit: Lillgrund Wind Farm, Near Copenhagen by Håkan Dahlström via Flickr (CC By SA, 2.0 License)

What Might the 2014 Elections Mean for U.S. Energy and Environmental Policy?

The simple answer is that at this point we don’t know. Lots of different paths are possible, depending on how Republicans interpret their enhanced power in the U.S. Congress, how the President approaches his final two years in office, and how Congressional Democrats react to their minority party role. Nevertheless, I will offer my current thoughts and speculations, subject of course to significant change as we proceed in Congress’ 2014 lame duck session and the start of a new Congress in January with Republicans in charge of both Houses for the first time in eight years.

One major consideration that dominates my thinking is that Republicans, facing inevitable demographic realities in future elections (older white people as a declining percentage of the voting population, more non-white voters/mostly Latino and Asian, and a growing number of young voters generally more progressive than their parents and grandparents), must demonstrate that they can govern effectively if they are to win national elections in the future. Remembering the Gingrich era in the 1990’s, when Republicans took over the Congress, it proved much easier to be in the minority and sling arrows than to govern effectively when finally in power. The modern House of Representatives, under John Boehner as Speaker, has proved to be one of the least effective in American history, but with control of both Houses in Republican hands after January, Boehner and McConnell (the presumed Majority Leaders in the new Congress) have the opportunity to do more than just oppose Obama Administration initiatives. What Boehner and McConnell want to do and are able to do will determine their places in history.

The issues as I see them are as follows: policy for fossil fuel supply – coal, oil, natural gas, fossil fuel exports, Keystone XL pipeline, global warming and climate change, support for clean energy, water issues. Each will be discussed briefly below.

– Fossil fuel supply: with Kentucky’s senior Senator setting the agenda for the Senate it is likely that anti-coal activists will be unsuccessful in accelerating the pace of closure of coal-fired power plants in the near future. These decisions, made on economic grounds by power plant operators, will be self-interested decisions based on the legislative environment they are facing. With Republicans in charge I anticipate every effort will be made to slow down or repeal the EPA’s proposed rules on carbon emissions. While there are Republicans who understand the need to replace coal combustion with natural gas and eventually with renewable energy, the political reality that they may be challenged in reelection primaries by climate change minimalizers or deniers tends to keep them in line with status-quo positions. Coal’s role in power generation in the U.S. is clearly diminishing, faster than most people probably anticipated just a few years ago, but low-cost coal exports to other countries are picking up. As the UK experienced several decades ago, closing coal mines and losing the associated jobs is difficult politics, as this year’s Senate election in Kentucky demonstrated. Keeping one’s job is priority #1 for most if not all people, and the political system needs to keep this firmly in mind. Balancing this against the needs of environmental protection is what we pay our politicians to do.

The issues with oil and natural gas largely relate to fracking and its associated environmental threats, and with their export to other countries. Both are critical issues that can no longer be avoided and require careful policy prescriptions that Republicans are now in a better place to affect. Fracking of oil and natural gas from extensive shale deposits has expanded rapidly in the U.S. in recent years, and the U.S. Is rapidly becoming the world’s #1 oil producer (when shale oil adds to our declining but still large traditional domestic oil production) and a major souce of natural gas supplies. As discussed in two previous posts on this blog web site, I see no way to stop fracking in the U.S. because of the large associated economic returns, and therefore we must regulate it carefully to avoid the real possibility of water supply contamination and minimize accidental releases of methane, a powerful global climate change gas. Republicans can have their cake and eat it too if they support this needed regulation, gaining brownie points for their environmentalism and still allow the fracking industry to proceed on their profitable path. Substituting fracking gas for coal in power generation is in most people’s interest, and while I would prefer to replace coal with wind, solar and other renewable generation sources, we are not in a position to do that yet. Nevertheless, the U.S. public largely understands the need for this inevitable transition and Republicans would be politically wise to take a long-range view on facilitating this transition. We shall see.

A related issue is what to do about U.S. producers who want to export oil and natural gas. Large and remunerative potential markets await in Europe and Asia but since the 1970’s it has been illegal for companies to export crude oil in all but a few circumstances. The goal of the 1970’s legislation was to conserve domestic oil reserves and discourage foreign imports, but in reality, the export ban did not help accomplish either objective.

The Natural Gas Act of 1938, as amended, requires that anyone who wants to import or export natural gas, including liquefied natural gas (LNG), from or to a foreign country must first obtain an authorization from the Department of Energy. This is less of a barrier than the ban on oil exports, but until recently the U.S. was anticipating importing LNG, not exporting it. The fracking revolution has changed all this, and LNG import terminals are now being constructed as export terminals.

An argument against such exports is less fossil fuel and potentially higher energy costs for U.S. consumers. Foreign policy as well as economic considerations come into this discussion as we try to loosen other country’s dependence on Russian and Middle East producers. I anticipate that export controls will be loosened on a bipartisan basis and the U.S. will emerge as a major energy exporter in the decades to come.

Approval of the Keystone XL Pipeline by the President will be a key issue in the upcoming lame duck session of Congress and may carry over to the new Congress in January. My own view, expressed in an earlier blog post, is that stopping construction of the pipeline will not slow Canadian development of its tar sands oil resources and that I’d rather have the oil coming to the U.S. rather than going elsewhere. I also believe that transport of oil by pipeline is safer than transport by rail car, the obvious and unstoppable alternative. With regard to this issue, which many environmentalists have identified as a litmus test for President Obama’s environmental bona fides, I see the pipeline, which has strong Republican support as well as some Democratic support, as a done deal, perhaps as part of a tradeoff with other Democratic priorities such as immigration reform.

The issue of global warming and climate change is a difficult partisan issue but shouldn’t be. The science of understanding global warming is advancing steadily, its risks are clear to most people, and the largely negative impacts of climate change are increasingly being documented. The problem in the U.S. Is the political clout of industries dependent on sales of fossil fuels. In addition, Republican control of the Senate means that chairmanship of the Environment and Public Works Committee will fall to Sen. James Inhofe (R-OK), a climate change denier. This is clearly bad news for environmentalists and others who are concerned about climate change, but also for Republicans and Democrats who will eventually have to deal with this global crisis. Inhofe can slow things down and probably will, at least for the next two years before another Senate election is scheduled. It will be up to members and leaders of both parties to limit the damage that Inhofe can do.

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Support for clean energy (efficiency, renewables) should also not be a partisan issue, but unfortunately is. Vested interests in the traditional energy industries still have too much power with a Congress highly dependent on campaign funds. My views on the need to accelerate the transition to a clean energy economy are clearly stated in quite a few of my blog posts, reflecting my view that such a transition is inevitable and clearly in the national interest. Unfortunately, I expect the next few years, under Republican control of Congress, to be a repeat of the years under President George W. Bush (‘Bush 43’) when lip service was paid to clean energy but budget support didn’t follow. As I was taught on my first days in Washington, DC in 1974, budget is policy. I hope President Obama will take a strong stand on these issues, despite Republican electoral gains, since he no longer has to protect vulnerable Democratic candidates.

I bring water into this discussion because water and energy issues are ‘inextricably linked’. Energy production requires water and provision of clean water supplies requires energy. Republicans as well as Democrats must recognize the need to consider these two issues together, and I think they will. This issue needs visibility and increased understanding on the part of politicians and the public, and is a natural for bipartisan cooperation. I hope I am right.

Obviously, I have only touched lightly on the many energy and environmental issues facing the U.S., and encourage others to join me in this discussion. These next few years should be interesting indeed!

A Personal View

The attached article entitled ‘Why the U.S. has not made more progress in moving toward a renewable energy future – a personal view’ was published on June 30, 2014 in the ejournal energy post (www.energypost.eu). My reason for writing this piece is explained in the text. It expands on an earlier blog post by adding, in some detail, my personal answer to the question raised in the article’s title.

Why the U.S. has not made more progress in moving toward a renewable energy future – a personal view
June 30, 2014 – Author: Allan Hoffman

Editor’s note: In 1978 a monumental multi-departmental study was submitted to President Carter concluding that “solar energy could make a significant contribution to U.S. energy supply by the end of this century”. The study, backed by 30 federal departments, stated that “even with today’s subsidized energy prices, many solar technologies are already economic.” Yet no action was taken and solar power and other renewable energies stagnated for over 30 years. Until now? Allan Hoffman, former senior official at the U.S. Department of Energy, who personally delivered the report to the White House back in 1978, recalls what went wrong – and what lessons the U.S. should draw if it is to avoid another failed renewables revolution.
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On December 6, 1978 I personally delivered a multi-agency report to the staff of the Domestic Policy Advisor to President Carter entitled ‘Domestic Policy Review of Solar Energy: A Response Memorandum to The President of the United States’. It is popularly known as the DPR. The report had been requested by the President in a May 3, 1978 speech in Golden, Colorado, dedicating the newly formed Solar Energy Research Institute (SERI). SERI has since become the National Renewable Energy Laboratory (NREL).

The DPR was the final report of the first comprehensive review by the U.S. federal government of its policies for renewable energy. It involved 30 federal departments and agencies, and at its peak this 6-month study involved the efforts of 175 senior government officials detailed to the DPR task force. As the U.S. Department of Energy’s senior representative to the DPR, and just one month after I had joined DOE as a political appointee, I was designated to head the effort by my new boss, the head of DOE’s Policy Office.

My hopes were dashed when President Clinton tried to put a price on carbon by raising gasoline prices by five cents a gallon and ran into a political firestorm. He never tried again.
The next six months were rather intense, starting with the fact that the other 29 departments and agencies didn’t trust the 30th, DOE, because of some recent history. Shortly before the DPR was announced the Carter Administration had released a National Energy Policy, also a multi-agency effort chaired by DOE. The story I was told by non-DOE staff was that DOE, at the last minute, had pulled out a draft it had prepared on its own and submitted it as the multi-agency report. As a result I inherited a problem of trust and spent much of the DPR’s first month building relationships with the non-DOE detailees to reestablish that trust. The DPR was completed in early December 1978, and delivered to the White House shortly thereafter. The full report, with appendices, was formally published in February 1979 and is available in DOE’s archives.

Point well taken
The reason I am writing about it now is that my wife recently happened to read it for the first time, and had a ‘strong’ reaction. She asked me, quite forcefully, WTF has it taken the U.S. so long to implement what we recommended more than 35 years ago? Point well taken! She also recommended that I write about this failure and “name names”. As a government retiree (as of September 30, 2012) I feel free to do that without constraint, recognizing that others may have different views on the subject. In fact, I will let the readers of this piece make up their own minds by reproducing the seven-page Executive Summary in full below before offering my views. It also serves as a piece of history that most people today are not familiar with.

Here it is.

“Domestic Policy Review of Solar Energy: A Response Memorandum to The President of the United States
(February 1979, TID-22834/Dist. Category UC-13)

EXECUTIVE SUMMARY

INTRODUCTION

In your May 3, 1978, Sun Day speech, you called for a Domestic Policy Review (DPR) of solar energy. Stuart Eizenstat followed on May 16 with a memorandum defining its scope to include:

A thorough review of the current Federal solar programs to determine whether they, taken as a whole, represent an optimal program for bringing solar technologies into widespread commercial use on an accelerated timetable;
A sound analysis of the contribution which solar energy can make to U.S. and international energy demand, both in the short and longer term;
Recommendations for an overall solar strbategy to pull together Federal, State and private efforts to accelerate the use of solar technologies.

In response to this memorandum, an interagency Solar Energy Policy Committee under the chairmanship of the Secretary of Energy was formed to conduct the review. Over 100 officials representing more than 30 executive departments and agencies have participated since early June.

This review was conducted with significant public participation. Twelve regional public forums were convened throughout the Nation during June and July to receive public comments and recommendations on the development of national solar energy policy. The response of the public was impressive, and reflected the growing support for solar energy identified by several recent opinion polls. Several thousand people attended the meetings and over 2000 individuals and organizations submitted oral or written comments.

In addition, briefings were given to members of the Domestic Policy Review by representatives of solar advocacy groups, small businesses, state and local government, public interest and consumer groups, utilities, the energy industry and solar equipment manufacturers. This public input was an important part of the Review.

In large part, themes reflected in the public comments are consistent with the findings of the DPR and the premises of the National Energy Plan. These premises include an emphasis on conservation as a cornerstone of national energy policy, awareness that energy prices should generally reflect the true replacement cost of energy, and recognition of the need to prepare for an orderly transition to an economy based on renewable energy resources. The public forum comments also reflected a deep concern that the poor and the elderly have access to affordable energy.

SUMMARY OF MAJOR FINDINGS

The results of the Domestic Policy Review can be summarized in nine major findings.

1. With appropriate private and government support, solar energy could make a significant contribution to U.S. energy supply by the end of this century. Renewable energy sources, principally biomass and hydropower, now contribute about 4.8 quads or six percent to the U.S. energy supply. Since estimates of future energy supply and demand are imprecise, three generic forecasts of possible solar use were developed. They can be distinguished most readily by the level of effort that would be required to reach them. In the Base Case, where present policies and programs continue, solar energy could displace 10-12 of a total of 95-114 quads in the year 2000 if energy prices rise to the equivalent of $25-32 per barrel of oil in 1977 dollars. A Maximum Practical effort by Federal, state and local governments could result in solar energy displacing 18 quads of conventional energy by the end of the century. Thus, if one assumes the higher future oil price scenario and this Maximum Practical effort, solar could provide about 20 percent of the nation’s energy by the year 2000. The Technical Limit of solar penetration by the year 2000, imposed primarily by the rates at which changes can be made to existing stocks of buildings and equipment, and rates at which solar techniques can be manufactured and deployed, appears to be 25-30 quads.

2. Solar energy offers numerous important advantages over competing technologies. It provides the Nation with a renewable energy source which can have far fewer detrimental environmental effects than conventional sources. To the extent that increased use of solar energy can eventually reduce U.S. dependence on expensive oil imports, it can also improve our balance of payments, alleviate associated economic problems, and contribute to national security. Widespread use of solar energy can also add diversity and flexibility to the nation’s energy supply, providing insurance against the effects of substantial energy price increases or breakdowns in other major energy systems. If oil supplies are sharply curtailed or environmental problems associated with fossil and nuclear fuels cannot be surmounted, solar systems could help reduce the possibility of major economic disruption.

In addition, because solar systems can be matched to many end-uses more effectively than centralized systems, their use can help reduce a large amount of energy waste. Although the U.S. now consumes about 76 quads of energy a year, less than 43 quads actually are used to provide energy directly in useable form. The rest in consumed in conversion, transmission and end-use losses.

3. Even with today’s subsidized energy prices, many solar technologies are already economic and can be used in a wide range of applications. Direct burning of wood has been economic in the private sector for some time, accounting for 1.3 to 1.8 quads of energy use. Combustion of solid wastes or fuels derived from solid wastes is planned for several U.S. cities. Passive solar design can significantly reduce energy use in many structures with little or no increase in building cost. Low head hydroelectric generation is currently economic at favorable sites. Solar hot water systems can compete successfully in many regions against electric resistance heating, and will compete against systems using natural gas in the future. A number of solar systems installed by individual users are cost-effective at today’s market prices. In addition, other solar technologies will become economic with further research, demonstration, and market development, and if subsidies to competing fuels are reduced or removed.

4. Limited public awareness of and confidence in solar technologies is a major barrier to accelerated solar energy use. Public testimony continually emphasized the need for more and better solar information. New programs to educate designers, builders, and potential solar users in the residential, commercial and industrial sectors are needed. Because consumers lack information, they often do not have confidence in solar products. Programs to provide reliable information to consumers, to protect them from defects in the manufacture and installation of solar equipment, and to assure competition in the solar industry can help build consumer confidence in the future.

5. Widespread use of solar energy is also hindered by Federal and state policies and market imperfections that effectively subsidize competing energy sources. These policies include Federal price controls on oil, and gas, a wide variety of direct and indirect subsidies, and utility rate structures that are based on average, rather than marginal costs. Also, the market system fails to reflect the full social benefits and costs of competing energy sources, such as the costs of air and water pollution. If solar energy were given economic parity with conventional fuels through the removal of these subsidies, its market position would be enhanced.

6. Financial barriers faced by users and small producers are among the most serious obstacles to increased solar energy use. Most solar technologies cannot compete effectively with conventional fuels at current market prices, in part because of subsidies, price controls, and average-cost utility rate structures for these conventional fuels. The tax credit provisions in the National Energy Act (NEA) will improve the economics of certain solar technologies, particularly in the residential sector.

Other barriers exist because the high initial costs of solar systems often cannot be spread over their useful lives. Industry and consumers have yet to develop experience in financing and marketing solar systems. Some of the provisions of the National Energy Act will help expand credit for residential/commercial solar systems. In addition, the new Small Business Energy Loan Act will provide credit assistance to small solar industry firms. Other existing Federal financial programs, which were created for other purposes, could also help finance solar purchases if they were directed toward this end.

7. Although the current Federal solar research, development and demonstration (RD&D) program is substantial, government funding priorities should be linked more closely with national energy goals. Solar RD&D budgets, which have totaled about $1.5 billion in the Fiscal Year (FY) 1974 to FY 1979 period, have not adequately concentrated on systems that have near-term applications and can help displace oil and gas. Electricity from large, centralized technologies has been over-emphasized while near-term technologies for the direct production of heat and fuels, community-scale applications and low-cost systems have not received adequate support. Basic research on advanced solar concepts has also been under-emphasized, limiting the long-term contribution of solar energy to the nation’s energy supply.

8. Solar energy presents the U.S. with an important opportunity to advance its foreign policy and international trade objectives. The United States can demonstrate international leadership by cooperating with other countries in the development of solar technologies, and by assisting developing nations with solar applications. Use of decentralized solar energy can be an important component of development planning in less developed counties which do not have extensive power grids, and cannot afford expensive energy supply systems. In many cases, solar may be the only energy source practically available to improve rural living conditions. Through such efforts, the U.S. could also help to develop new foreign markets for U.S. products and services, thereby increasing opportunities for employment in solar and related industries at home. And, as solar energy eventually begins to displace imported oil and natural gas, the U.S. will enjoy greater flexibility in the conduct of its foreign policy. Insofar as solar energy systems reduce the need for nuclear and petroleum fuels in the long-term, they can help reduce the risk of nuclear proliferation and international tensions arising from competition for increasingly scarce fossil fuels.

9. Although the Federal government can provide a leadership role, Federal actions alone cannot ensure wide-spread use. Many barriers to the use of solar energy, and opportunities to accelerate its use, occur at state and local levels. In order to overcome these barriers and take advantage of these opportunities, a concentrated effort at all levels of government and by large segments of the public will be required. Nevertheless, the Federal government can set a pattern of leadership and create a climate conducive to private development and use of solar energy in a competitive market. These efforts must also recognize the wide variation among solar technologies and the resulting need to tailor initiatives to specific solar applications.”

This was 35 years ago and in hindsight it is clear that the powerful recommendations in our study were largely ignored. We thereby missed a great opportunity to transform our society in a way that would have enabled us to avoid many of the traumatic geopolitical, economic and environmental problems we faced in the ensuing years.

Why? Allow me to offer some personal reflections on this. My views take issue with both political parties and with vested interests in traditional energy industries. They are based on my experiences over nearly forty years in Washington, including service as Staff Scientist for the Senate Committee on Commerce, Science and Transportation, and many years as a senior official at the U.S. Department of Energy. Let me start with President Carter.

I served in the Carter Administration for nineteen months as head of the renewable energy policy division in the newly established Department of Energy. The DPR was my primary responsibility during that time and was received by a President who was favorably disposed towards renewable energy technologies. In fact he installed solar hot water heating panels on the White House roof and used the DPR as the basis of his dedication speech in April 1979.

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President Carter installs solar power at White House
(Photo: AP/Harvey George)

Where I take issue with his promotion of renewable energy is in his denial of a requested increase in the R&D budget for renewables, arguing that we had to balance the FY1981 budget. I accepted his argument at the time but rejected it later when the President somehow found $88 billion for a new synfuels program, probably motivated by his then poor standings in the polls. I was sufficiently upset by this development that I left DOE shortly thereafter.

Of course President Carter lost to Ronald Reagan in the 1980 presidential election and the following eight years were terrible for renewable energy, and for DOE in general. President Reagan and his aides set out to eliminate two Federal Departments – DOE1 (Energy) and DOE2 (Education), but succeeded in neither. Nevertheless, they did remove the solar panels from the White House roof and serious damage was done in those years to the renewable energy budget – it was reduced by a factor of eight! Only the determined efforts of a few dedicated DOE managers (particularly Bob San Martin, the head of the renewable electric programs) kept the programs alive. It was also during this period that oil prices took a dive to below $10 a barrel and public interest in alternative energy was diminished significantly.

Things improved in the four years under George Bush Sr. – budgets edged up slightly and SERI was designated as a National Laboratory, NREL. The 1992 election also saw Bill Clinton elected as President and Al Gore as Vice President, and hopes were high that renewable energy R&D budgets would increase. I was now back at DOE helping to run the renewable energy programs, first as Associate Deputy Assistant Secretary, and then as Acting Deputy Assistant Secretary for more than three years. While annual budgets did increase somewhat to about $300 million, I knew that this was less than required for a fully effective program (the budget covered solar, wind, hydropower, geothermal, biomass, ocean energy, energy storage, and superconductivity), which I estimated to be $450 million.

Political firestorm
Not expecting much action in a first Clinton term (there were lots of other ‘fish to fry’) I looked forward to Clinton’s second term. Of course my hopes were dashed when the President tried to put a price on carbon by raising gasoline prices by five cents a gallon and ran into a political firestorm. He never tried again. Vice President Gore was also responsible for a serious setback when he insisted that all programs aimed at reducing global warming be so labeled in the FY1996 budget request, which many of us argued against strongly.

We were unsuccessful, the Republicans won both the House and Senate in that off-year election, and the Gingrich Revolution that followed used the Gore budget identifications as a guide to reducing the renewable energy budget by 25%. This had serious consequences for NREL, which received 60 % of its operating funds from that budget, and NREL was forced to lay off 200 of its 800 staff. It was a devastating time for renewables, about which I still carry strong feelings. One of those feelings is that we had a President and Vice President who understood energy issues and the need to move toward a renewable energy future. In my opinion they should have taken more steps to put us on that path, and they didn’t. I’m still angry.

The Clinton/Gore years were followed by the Bush/Cheney years where the energy focus was on fossil fuels and nuclear power. It was a discouraging period for renewables and we lost valuable time while the rest of the world began to make significant progress in their development and deployment of renewables. We clearly lost out on the economic activity and jobs that were going to other countries as the new, clean energy industries were being developed. It was only with the coming of the Obama administration that this situation began to change, but our progress has been seriously slowed down by a dysfunctional Congress these past few years, the worst I have seen in all my years in Washington, DC.

Let me also say a word about the role of traditional energy companies in the oil, natural gas, and coal industries. Clearly their role in supplying energy would be affected by the penetration of renewable technologies, and they have reacted as one might expect. In the mid 1990s, as renewables began to emerge, the coal industry sponsored several studies that attacked the ability of renewables to provide a significant fraction of national energy needs. These studies were not accurate, even misleading, and required a great deal of effort to refute. I’ve always thought of them as similar in intent to the studies sponsored by the tobacco companies to raise doubts about the health effects of smoking and slow down regulatory activities. Modern analogs are the studies sponsored by fossil fuel companies to disprove global warming and climate change and slow down efforts to reduce dependence on carbon-based fuels.

A plague
This is not to say that fossil fuels don’t have an important role to play in our future energy supply. Renewable technologies are not ready yet to provide the large amounts of energy required to power our economy and fulfil our international responsibilities, and probably won’t be for several more decades. Nevertheless, recent studies document that renewables can provide the major share of our electrical energy requirements in 2050 if we have the will to do so and make the necessary investments (see ‘Renewable Electricity Futures Study’, NREL, June 2012). It is also true that our transportation fleets are highly dependent on petroleum-based fuels, and will be for many years until they are electrified and alternate liquid fuels are developed. Also, natural gas has always been recognized as a needed transition fuel to a renewable future. With the U.S. and other countries entering a new natural gas era with the emergence of large amounts of shale gas via fracking , and the ability of natural gas to substitute for coal in power generation and thus reduce carbon emissions, it will be an important part of our energy supply for decades to come. Unfortunately, this glut of shale gas may lead to reduced investments in renewables if national energy policies don’t take this into account.

To sum up my views on why more hasn’t happened in the U.S. since February 1979 when the DPR was released to the public and provided an excellent framework for moving toward a renewable energy future: a plague on all houses. Too many Republicans and some Democrats have been too protective of traditional energy companies, Democrats have often failed to provide needed leadership when opportunities presented themselves, and fossil fuel companies, particularly coal companies, are generally doing what they can to protect their vested interests. However, it is also fair to recognize that several oil companies did invest resources in the early days of photovoltaics to help get things started, as Peter Varadi well documents in his newly published book about the history of PV ‘Sun Above the Horizon’ (Pan Stanford Publishers). Nevertheless, they mostly retreated from these investments when they realized that short term profits were not available, and that a long term perspective would be required.

Today, in my opinion President Obama ‘gets it’ about the promise and importance of a renewable energy future.

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I believe he is doing what he can to put the U.S. on that path but is facing serious opposition from a too often recalcitrant U.S. Congress. In my view Congress has an obligation to look down the road, anticipate national needs, and take positive steps to address those needs before they become crises. This is an obligation I believe recent Congresses have often not met. We can do a lot better and must if the U.S. is to derive its fair share of benefits from an emerging and inevitable clean energy industry that other countries are working hard to develop and know is the future.

Human Wastes: Another Energy Resource Waiting to Be Tapped

Recently I posted a blog entitled ‘Animal Wastes: An Energy Resource That Is Win-Win’. The Washington Post article reproduced below may be considered a follow-up to that blog but focused on using human wastes to generate energy. It usefully points out the several beneficial uses to which human wastes can be put and the economic benefits of doing so. It is worth reading!

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WASTE, NOT WASTED
By Ashley Halsey III
Washington Post (April 6, 2014)

This is a topic that one must approach delicately so as not to offend the reader’s sensibilities, but since it is a matter of importance for which you may receive a bill for some portion of $470 million, we start out with an analogy.

You need energy, so you eat. Through the miracle of digestion, your body sorts what you have eaten, say, a pastrami on rye with a glob of coleslaw and a dill pickle, and plucks out the nutrients — proteins, carbohydrates and sugars it needs to generate power. Then it jettisons the rest.

What your body jettisons disappears forever, carried along in a huge network of sewers to a plant in the southeastern corner of Washington.

Just like you, that plant needs energy. Through a miracle called thermal hydrolysis, it soon will be able to sort through what you have jettisoned and use it to generate electricity.

Yes, from poop will come power — 13 megawatts of it. Enough electricity to light about 10,500 homes.

Ben Franklin never dreamed of this one.

While Ben may have denounced the scheme as impossible sorcery, he also noted that a penny saved is a penny earned, so he might have been at least intrigued by this notion.

More than a few pennies may be saved for the citizens of the District and for some Virginians and Marylanders. Those people — 2.2 million of them — get a monthly bill for the privilege of sending their thoroughly digested nutritional intake to the plant in Southeast Washington operated by D.C. Water.

A chunk of that monthly bill is passed on to another local utility — Pepco. D.C. Water is the electricity company’s No. 1 customer. By converting poop to power, the water company will cut its Pepco bill by about one third and reduce by half the cost of trucking treated waste elsewhere.

But enough about poop, a subject that makes many a reader a bit squeamish. Because we’d rather not drive you away from the description of a wholly remarkable plan that is very likely to affect your pocketbook, henceforth we will refer to the matter that flows through the sewage plant as “the product.”

In fact, you soon will learn, it is going to be turned into a genuine product. One with a price tag. One that you may buy back.

Think about it.

The product has shed the label “wastewater” to morph into something called “enriched water,” a term laden with many more intriguing possibilities.

“It could be a game changer for energy,” said George Hawkins, an environmentalist who became general manager of D.C. Water. “If we could turn every enriched-water facility in the United States into a power plant, it would become one of the largest sectors of clean energy that, at the moment, is relatively untapped.”

What’s nearing completion outside Hawkins’s office window, however, is something never built on this scale anywhere in the world. A decade of study came first, and to see whether the system would work here, D.C. Water paid smaller European utilities that use the same process to modify their product so it more closely matched that which Washington produces.

“We’re confident that this model will work,” Hawkins said.

Something called the Cambi, for the Norwegian company that builds it, sits at the heart of it.

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When the product flows into the more than 150-acre plant known as Blue Plains, it goes through a couple of mesh filters to shed the debris swept up in the sewer system. Then it goes through a treatment process that turns it into what the Environmental Protection Agency categorizes as class B waste, enough to fill 60 big dump trucks with 1,600 tons of product every day.

And out the gate it goes, at a cost of $16 million a year.

That will change in May and June, as D.C. Water begins a phase-in intended to get the new system into full service by January.

Here’s how it works:

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A centrifuge drains off the liquid, and then the screened product will flow into four pulpers, tall stainless steel vats that look like Gulliver’s soda cans. Steam recycled from farther down the process is used to preheat it, and then it flows into one of the two dozen Cambis. They sit like a row of gleaming, blunt-nosed rockets, but they serve as pressure cookers.

The product is heated to more than 320 degrees under as much as 138 pounds of pressure for 22 minutes. Then it moves to a flash tank, where the temperature and pressure drop dramatically and a critical change takes place.

“Because of that pressure difference, the cells burst,” said Chris Peot, director of resource recovery at D.C. Water.

When the cells burst, the methanogens can have their way with them.

That happens in the digesters. They are four huge concrete vats, 80 feet tall and 100 feet in diameter. Right now, their interiors are like vast cathedrals, with domed ceilings and a shaft of light glancing through a hole in the top.

When the whole operation gets rolling, inside them is not a place you would want to be. The product will flow in from the four flash tanks, mixing with the methanogen microorganisms. Methanogens create marsh gases. In the digestive tracts of animals and humans, they also create gas, to the particular delight and fascination of middle-school boys.

That’s what this is all about — creating methane to generate electric power.

The temperature inside the digesters is kept at about that of the human body: 98.6 degrees Fahrenheit. Each digester chamber has five vertical blue tubes, as big around as manhole covers, that suck the product from the bottom and recycle it to near the top. After the product stews there for about two weeks, the methane produced by the process will vent out a 12-inch diameter pipe in the crown.

After a bit more purification, the methane will be used to fire three jet turbine engines that create electricity. A byproduct of that process: steam, which is funneled back to the pulper.

The power portion of the plant will be operated under contract by Pepco. The deal doesn’t allow D.C. Water to sell the power it generates, a moot point since the process of creating it eats up 3 megawatts and the remaining 10 megawatts will be sucked up by operations at Blue Plains.

Once the digester’s work is done, the remaining product will be drained out into dump trucks, but their total load will be cut in half to about 600 tons a day.

Remember that we told you earlier that what you jettison disappears forever? Let’s reconsider that, because there’s actually a chance you’ll see it again. In a strikingly different form. Right back where you saw it first: on your dinner table.

The product that has been trucked from Blue Plains is rated class B. But the product that comes out of the digester will be rated class A.

The difference?

Class B still has some bad stuff in it. Most of it is shipped to farmers, some in Maryland but most of them in Virginia. They get it free, but unless they let it sit for at least a month, and sometimes up to 18 months, the only things they can use it to fertilize are trees and sod used by landscapers.

Class A product can be used right away on anything, including fields that grow the fruits and vegetables you buy at the grocery store and serve for dinner.

That’s because, Peot says, in the Cambi, “All the pathogens are completely obliterated.”

“Our product has these super-elevated levels of these naturally occurring, extremely important plant hormones,” Peot said.

It is a more environmentally sound choice than the chemical fertilizer alternatives. In the raw, the class A product is so potent it needs to be cut with other materials before it is used to fertilize crops.

“We can blend this with sawdust and sand and make a topsoil substitute for use in green infrastructure projects,” Peot said. “We’re still going to go to farms while we try to build the market for this product.”

Hawkins, D.C. Water’s general manager, chimed in: “It’s clean, organic fertilizer. Conceivably, we could sell this product at Home Depot. ”

Unlike most innovations in waste treatment locally and nationwide, this project was not mandated by a federal court order. D.C. Water’s board decided it was a worthwhile investment of ratepayers’ money.

“This was one of the easier $500 million decisions that we’ll ever ask the board to make,” Hawkins said, ticking off the value: a savings in electrical costs of about $10 million a year; lowering the cost of hauling away treated waste; the potential to generate a profit by selling the product; a reduction by one third in the plant’s carbon footprint; and one more critical virtue.

For about three days a month ago, residents of part of Northwest Washington were told to boil their drinking water for fear it might be contaminated. That scare was caused by a power problem that shut down a pumping station.

“It wasn’t Pepco’s problem. It was internal to us,” Hawkins said. “We have great fears here about what would happen if there was a catastrophic power failure and Blue Plains stopped.”

Generating power internally will provide enough juice to keep the basics running, were that to happen, he said.

“This is the rare combination of both environmentally and economically positive,” Peot said.

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A Cambi installation in the UK

Zero Energy Buildings: They May Be Coming Sooner Than You Think

Buildings account for approximately 40 percent of the energy (electrical, thermal) used in the U.S. and Europe, and an increasing share of energy used in other parts of the world. Most of this energy today is fossil-fuel based. As a result, this energy use also accounts for a significant share of global emissions of carbon dioxide.

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Source: U.S. Department of Energy, Buildings Energy Data Book

These simple facts make it imperative that buildings, along with transportation fleets and power generation, be primary targets of reduced global energy and fossil fuel demand. This blog post discusses one approach in buildings that is gaining increasing visibility and viability, the introduction of net zero energy buildings and the retrofit of existing buildings to approach net zero energy operation. A net zero energy building (NZEB or ZEB) is most often defined as a building that, over the course of a year, uses as much energy as is produced by renewable energy sources on the building site. This is the definition I will focus on. Other ZEB definitions take into account source energy losses in generation and transmission, emissions (aka zero carbon buildings), total cost (cost of purchased energy is offset by income from sales of electricity generated on-site to the grid), and off-site ZEB’s where the offsetting renewable energy is delivered to the building from off-site generating facilities. Details on these other definitions can be found in the 2006 NREL report CP-550-39833 entitled “Zero Energy Buildings: A Critical Look at the Definition”.

The keys to achieving net zero energy buildings are straight forward in principle: first focus on reducing the building’s energy demand through energy efficiency, and then focus on meeting this energy demand, on an annual basis, with onsite renewable energy – e.g., use of localized solar and wind energy generation. This allows for a wide range of approaches due to the many options now available for improved energy efficiency in buildings and the rapidly growing use of solar photovoltaics on building roofs, covered parking areas, and nearby open areas. Most ZEB’s use the electrical grid for energy storage, but some are grid-independent and use on-site battery or other storage (e.g., heat and coolth).

A primary example of what can be done to achieve ZEB status is NREL’s operational RSF (Research Support Facility) at its campus in Golden, Colorado, shown below.

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It incorporates demand reduction features that are widely applicable to many other new buildings, and some that make sense for residential buildings and retrofits as well (cost issues are discussed below). These include:
– optimal building orientation and office layout, to maximize heat capture from the sun in winter, solar PV generation throughout the year, and use of natural daylight when available
– high performance electrical lighting
– continuous insulation precast wall panels with thermal mass
– windows that can be opened for natural ventilation
– radiant heating and cooling
– outdoor air preheating, using waste heat recovery, transpired solar collectors, and crawl space thermal storage
– aggressive control of plug loads from appliances and other building equipment
– advanced data center efficiency measures
– roof top and parking lot PV arrays

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U.S. ZEB research is supported by DOE’s Building America Program, a joint effort with NREL, Lawrence Berkeley National Laboratory, Oak Ridge National Laboratory, and several industry-based consortia – e.g., the National Institute of Building Sciences and the American Institute of Architects. Many other countries are exploring ZEB’s as well, including jointly through the International Energy Agency’s “Towards Net Zero Energy Solar Buildings” Implementing Agreement (Solar Heating and Cooling Program/Task 40). This IEA program has now documented and analyzed more than 300 net zero energy and energy-plus buildings worldwide (an energy-plus building generates more energy than it consumes).

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An interesting example of ZEB technology applied to a residential home is NREL’s Habitat for Humanity zero energy home (ZEH), a 1,280 square foot, 3-bedroom Denver area home built for low income occupants. NREL report TP-550-431888 details the design of the home and includes performance data from its first two years of operation (“The NREL/Habitat for Humanity Zero Energy Home: a Cold Climate Case Study for Affordable Zero Energy Homes”). The home exceeded its goal of zero net source energy and was a net energy producer for these two years (24% more in year one and 12% more in year two). The report concluded that “Efficient, affordable ZEH’s can be built with standard construction techniques and off-the-shelf equipment.”

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The legislative environment for ZEB’s is interesting as well. To quote from the Whole Building Design Guide of the National Institute of Building Sciences:
“Federal Net Zero Energy Building Goals
Executive Order 13514, signed in October 2009, requires all new Federal buildings that are entering the planning process in 2020 or thereafter be “designed to achieve zero-net-energy by 2030”. “In addition, the Executive Order requires at least 15% of existing buildings (over 5,000 gross square feet) meet the Guiding Principles for Federal Leadership in High Performance and Sustainable Buildings by 2015, with annual progress towards 100% conformance”.
Two milestones for NZEB have also been defined by the Department of Energy (DOE) for residential and commercial buildings. The priority is to create systems integration solutions that will enable:
Marketable Net Zero Energy Homes by the year 2020
Commercial Net Zero Energy Buildings at low incremental cost by the year 2025.
These objectives align with the Energy Independence and Security Act of 2007 (EISA), which calls for a 100% reduction in fossil-fuel energy use (relative to 2003 levels) for new Federal buildings and major renovations by 2030.”

A word about cost: ZEB’s cost more today to build than traditional office buildings and homes, but not much more (perhaps 20% for new construction). Of course, part of this extra cost is recovered via reduced energy bills. In the future, the zero energy building goal will become more practical as the costs of renewable energy technologies decrease (e.g., PV panel costs have decreased significantly in recent years) and the costs of traditional fossil fuels increase. The recent surge in availability of relatively low cost shale gas from fracking wells will slow this evolution but it will eventually occur. Additional research on cost-effective efficiency options is also required.

To sum up, the net zero energy building concept is receiving increasing global attention and should be a realistic, affordable option within a few decades, and perhaps sooner. ZEB’s offer many advantages, as listed by Wikipedia:
“- isolation for building owners from future energy price increases
– increased comfort due to more-uniform interior temperatures
– reduced total net monthly cost of living
– improved reliability – photovoltaic systems have 25-year warranties – seldom fail during weather problems
– extra cost is minimized for new construction compared to an afterthought retrofit
– higher resale value as potential owners demand more ZEBs than available supply
– the value of a ZEB building relative to similar conventional building should increase every time energy costs increase
– future legislative restrictions, and carbon emission taxes/penalties may force expensive retrofits to inefficient buildings”

ZEB’s also have their risk factors and disadvantages:

“- initial costs can be higher – effort required to understand, apply, and qualify for ZEB subsidies
– very few designers or builders today have the necessary skills or experience to build ZEBs
– possible declines in future utility company renewable energy costs may lessen the value of capital invested in energy efficiency
– new photovoltaic solar cells equipment technology price has been falling at roughly 17% per year – It will lessen the value of capital invested in a solar electric generating system. Current subsidies will be phased out as photovoltaic mass production lowers future price
– challenge to recover higher initial costs on resale of building – appraisers are uninformed – their models do not consider energy
– while the individual house may use an average of net zero energy over a year, it may demand energy at the time when peak demand for the grid occurs. In such a case, the capacity of the grid must still provide electricity to all loads. Therefore, a ZEB may not reduce the required power plant capacity.
– without an optimised thermal envelope the embodied energy, heating and cooling energy and resource usage is higher than needed. ZEB by definition do not mandate a minimum heating and cooling performance level thus allowing oversized renewable energy systems to fill the energy gap.
– solar energy capture using the house envelope only works in locations unobstructed from the South. The solar energy capture cannot be optimized in South (for northern hemisphere, or North for southern Hemisphere) facing shade or wooded surroundings.”

Finally, it is important to note that the energy consumption in an office building or home is not strictly a function of technology – it also reflects the behavior of the occupants. In one example two families on Martha’s Vineyard in Massachusetts lived in identical zero-energy-designed homes and one family used half as much electricity in a year as the other. In the latter case electricity for lighting and plug loads accounted for about half of total energy use. As energy consultant Andy Shapiro noted: “There are no zero-energy houses, only zero-energy families.”