Monthly Archives: June 2024

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The Pentagon’s plan to go solar: another chapter in a great American success story

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Aerial view of the Pentagon.
The only real question is why it has taken so long. (DOD photo by U.S. Air Force Staff Sgt. Brittany A. Chase)

Virginia Gov. Glenn Youngkin can’t run for reelection, so it’s frustrating to see him spending so much time trying to score political points. The latest episode came earlier this month, when according to Fox News, Youngkin sent a letter to Defense Secretary Lloyd Austin questioning the Pentagon’s plan, announced back in January, to install solar panels on the building’s massive roof. Youngkin complained that the plan included no requirements for American-made technology, raising the question “whether American taxpayer dollars will be used to purchase solar equipment from the Chinese Communist Party.” 

A few days later, Fox News reported the Pentagon offered reassurance that it had a “rigorous and extensive oversight process to ensure compliance” with the Buy American Act and other laws requiring domestic content. 

According to this second article, a Youngkin spokesperson quoted the governor as “pleased that Secretary Austin will follow his recommendations to adopt the ‘Made in America’ requirements for procuring Chinese solar panels.”

Younkin’s attempt to snatch victory while still clenched in the jaws of defeat is amusing, but more than a little puzzling. Apparently Younkin is under the impression that solar panels are inherently Chinese.  

Let’s be clear: Solar energy is one of the great American success stories. Americans invented solar photovoltaic technology, nurtured it and led the world in its development for half a century. American ingenuity put solar on the path to becoming today’s low-cost leader for power generation, to the point that it is projected to become the world’s dominant source of electricity by 2050. 

However, as with a lot of American manufacturing, most solar panel production migrated overseas as the technology matured. Starting in 2010, China bet big on renewable energy, investing in solar technology itself and driving down panel prices to the point where most manufacturers in Europe and the U.S. were driven out of business. Only one U.S company remains in the top ten worldwide. 

Chinese companies also likely benefited from the use of forced labor in the production of polysilicon, the raw material for most solar panels. The U.S. banned the importation of solar panels made with forced labor in 2021. 

By then, however, China had developed a mature supply chain and technological know-how to support low-cost production. Today China dominates every aspect of solar manufacturing, with about 80% of the world’s market share. Chinese solar companies have expanded production capacity beyond the ability of world markets to absorb, driving down already-low prices by 42% in 2023. 

Domination of the world market is only half the story, though. China also leads the world in deploying solar at home. China installed as much solar PV capacity in 2022 as the rest of the world combined, and then doubled that in 2023. China also leads the world in offshore wind deployment and electric vehicle sales and dominates production of lithium-ion batteries. 

So the concern that the Chinese are winning the clean energy race is well justified, and Youngkin is not the only American who hates the taste of second place. But our leaders only have two choices: stand around talking trash about the competition, or get in the game. 

That’s what Congress did in passing laws like the Bipartisan Infrastructure Act and the Inflation Reduction Act (IRA) that support American investment in solar panels, wind turbines, electric vehicles and other components of a green revolution. More controversially, President Joe Biden also extended Trump-era tariffs on Chinese-made polysilicon solar panels to give American manufacturers a chance to scale up.  

Not everyone supports tariffs on Chinese-made solar panels, given the inflationary impact of trade barriers and the urgent need to deploy as much renewable energy as possible to lower CO2 emissions. Still, the learning rateof solar is expected to continue driving prices lower over the long term. Even with a less-mature, more expensive supply chain, American-made panels are projected to become cheaper than imported panels by 2026.

One year after the IRA’s passage, a Goldman-Sachs analysis found the law was meeting its objectives of driving private sector investment and job creation in the clean-tech sector, including manufacturing. This month, Wood Mackenzie reported that U.S. solar manufacturing capacity increased 71% in the first quarter of 2024, making it the largest quarter of solar manufacturing growth in history. 

The Pentagon is not known for caring about saving money, so maybe it isn’t surprising that it is only now following the example of millions of Americans by putting solar panels on the roof. Defense Department officials say the move is intended to support the resurgence in American manufacturing and to deliver the benefits of increased energy resilience and reliability, including having an uninterrupted power source in case of a cyberattack or a grid outage. 

Low-cost, clean power, resilience and energy security are all part of the great American success story that is solar energy. A note of congratulation, not complaint, would be the better response from Youngkin.

This article first appeared in the Virginia Mercury on June 26, 2024. It has been edited to remove a reference to the Pentagon being located in Virginia because, for reasons worth a digression, it is not.

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DEQ’s proposal to end the solar wars makes lemons out of lemonade

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Wildflowers in front of solar panels illustrate pollinator plantings around solar panels
Who says solar can’t be an asset to the land? Photo credit Center for Pollinators in Energy, fresh-energy.org

It’s a problem that divides communities and stymies lawmakers: Virginia’s transition to clean energy depends on building thousands of acres’ worth of large solar facilities, but a backlash from some rural neighbors makes siting projects increasingly difficult. 

Most of the objections are aesthetic – few people prefer to look at rows of solar panels if they once enjoyed a bucolic country scene – but some opponents say they worry about the loss of farmland and trees. Solar, they fear, is bad for the land as well as the eyes. It doesn’t help that some early solar development suffered from corner-cutting that resulted in soil compaction and erosion. If that is solar, many people want no part of it.

In 2022, land conservation groups banded together with agriculture and logging interests to lobby for legislation requiring mitigation whenever a solar project would disturb more than 50 acres of forest or 10 acres of “prime agricultural soils.” House Bill 206 applies to any solar project developed under Virginia’s sort-of-streamlined “permit by rule” process, which is available to all but the largest facilities. 

The solar industry initially fought the legislation, joined by some climate advocacy groups. They pointed out that no other industry is subject to mitigation requirements, and that solar provides greater climate benefits than forests and agriculture. Moreover, solar panels can be removed and the land returned to farming or forestry. By contrast, once land is converted to a housing subdivision or strip mall or data center, the damage is permanent. 

Eventually the solar industry accepted compromise language that put off the effective date until the start of 2025 and gave industry members a voice in an advisory panel under the auspices of Virginia’s Department of Environmental Quality (DEQ). The law tasked this group with helping to develop “criteria to determine if a significant adverse impact to prime agricultural soils or forest lands is likely to occur as a result of a proposed solar project,” and if so, the actions that should be considered in any mitigation plan. DEQ was to use the working group’s conclusions to draw up regulations. 

As it turned out, the working group agreed on very little. Its 717-page report found consensus on only a few points, leaving DEQ itself with the task of resolving key issues. On May 13, the agency published its proposed regulations. The regulations are currently under executive branch review, after which Interested parties and the public will have the opportunity to comment.

Meanwhile, a few things have happened since the passage of HB 206.

In March of 2022, DEQ toughened its stormwater regulations to address the runoff and erosion problems that had given solar a bad name in some communities. Building on that, the agency just released a new stormwater handbook that will become effective July 1, 2024, with sections specific to solar development. 

Some solar industry members complain that DEQ’s stormwater regulations are unreasonably onerous, but no one questions the importance of preventing runoff and erosion. In any case, many companies are already using land-friendly practices that make it easier to meet tougher rules. One is the use of terrain following trackers, a technology that allows solar to be installed on uneven terrain instead of bringing in bulldozers to level the site. The trackers maximize solar production in hilly areas while preserving topsoil and vegetation. 

The new tracker technology is among the suite of low-impact approaches gaining ground as the solar industry matures. DEQ encourages another eco-friendly practice: planting native species among and around solar arrays. Native plants provide food and habitat for insects whose numbers have plummeted in recent years, threatening our ecosystems. Though only a few solar projects have achieved DEQ’s pollinator-smart certification to date, most of the developers I’ve spoken with say they are open to it. 

Photo credit Solar Power World and Nexamp

Gaining traction even faster is the practice of using grazing animals for vegetation management. Sheep hit the sweet spot: project owners save money they would have to spend on humans operating machinery, while the sheep thrive in the shade of solar panels and return nutrients to the soil. Already, 2% of sheep in the U.S. are being grazed under solar panels, according to an American Solar Grazing Association webinar, including at several large Virginia facilities providing power to Dominion Energy. Elsewhere, cattle graze under solar panels or crops grow between the rows, further erasing the distinction between solar facilities and agricultural use. 

All-terrain trackers, topsoil preservation, native plants and incorporating active farming or grazing: all these practices ensure farmland isn’t “lost” to solar. Yet DEQ’s tougher stormwater rules, the solar industry’s increasingly land-friendly practices, and even the passage of HB 206 haven’t allayed concerns among solar opponents. Instead, rural counties have stepped up the pace of bans, caps and moratoriums.  

One suspects the continued hostility isn’t because opponents lack familiarity with the ways solar can be eco-friendly, but because the opposition’s primary motivation isn’t preserving farmland. If what they really care about is keeping solar from cluttering up the viewshed (“preserving our rural heritage” is the euphemistic framing), then adding a new layer of mitigation requirements won’t change anything. 

Admittedly, I never supported HB 206 in the first place. From an environmental perspective, solar is no worse for the land than monoculture pine plantations or commodity crops grown with pesticides and petroleum-based fertilizers. Done in a habitat-friendly way, solar can increase biodiversity and help heal the land. And solar addresses our CO2 problem, far more even than trees.

Still, DEQ’s job was to try to find a middle ground between the solar industry and its detractors, and in fairness, their effort gets some things right. The proposed rules recognize that there are degrees of impact a solar facility can have, and that practices like leaving topsoil undisturbed or incorporating agrivoltaics should be rewarded with lower mitigation requirements. A neat table delineates the various levels of impact and proposes differing levels of mitigation to match. Mitigation mostly takes the form of land set-asides, but can also be satisfied with per-acre payments. 

And yet the proposal misses the mark on at least three fronts. First, it fails to give full credit to solar projects that minimize soil disturbance and incorporate agrivoltaics. DEQ should recognize that adopting best practices is itself mitigation, which should obviate the need for land set-asides or monetary payments. 

Second, the proposed regulations make no exceptions for projects owned and operated by local farmers who incorporate solar into their farm activities in order to increase and diversify their income without having to sell their land. If the point of HB 206 was to protect farming, DEQ has shot wide of the mark.

Finally, the dollar amounts that DEQ proposes in lieu of land set-asides are punishingly high, with perverse effects. A solar company that has to pay a stiff penalty must pass that cost along in the form of a higher price for the electricity produced. If a utility has to pay more for electricity, ratepayers ultimately foot the bill. 

The alternative is equally counterproductive. I noted at the start that DEQ’s permit-by-rule process is available to all but the largest projects, but it is not the only pathway open to developers. Projects over 150 MW are required to go to the SCC for approval, but smaller projects aren’t foreclosed from doing so. If DEQ makes its own process too onerous, solar developers will go to the SCC instead. The SCC requires that a developer secure a local permit, but not that it employ soil-saving practices, agrivoltaics or mitigation.

It would be great if DEQ could turn the lemon that is HB 206 into a lemonade of a solar industry adopting eco-friendly development practices and incorporating pollinator plantings, sheep grazing, and other agrivoltaic businesses. What we have instead is a proposal that may kill the permit-by-rule program without producing any benefit to anyone – in effect, turning lemonade into lemons.

There is still time to get it right. DEQ may not be able to resolve the solar wars, but a good set of regulations would position Virginia to make the most of a solar industry that is essential to our future.

This article was originally published in the Virginia Mercury on June 12, 2024.