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Q&A

You, Too, Can Protect Solar Panels Against Hail

A conversation with VDE Americas CEO Brian Grenko.

This week's interview subject.
Heatmap Illustration

This week’s Q&A is about hail. Last week, we explained how and why hail storm damage in Texas may have helped galvanize opposition to renewable energy there. So I decided to reach out to Brian Grenko, CEO of renewables engineering advisory firm VDE Americas, to talk about how developers can make sure their projects are not only resistant to hail but also prevent that sort of pushback.

The following conversation has been lightly edited for clarity.

Hiya Brian. So why’d you get into the hail issue?

Obviously solar panels are made with glass that can allow the sunlight to come through. People have to remember that when you install a project, you’re financing it for 35 to 40 years. While the odds of you getting significant hail in California or Arizona are low, it happens a lot throughout the country. And if you think about some of these large projects, they may be in the middle of nowhere, but they are taking hundreds if not thousands of acres of land in some cases. So the chances of them encountering large hail over that lifespan is pretty significant.

We partnered with one of the country’s foremost experts on hail and developed a really interesting technology that can digest radar data and tell folks if they’re developing a project what the [likelihood] will be if there’s significant hail.

Solar panels can withstand one-inch hail – a golfball size – but once you get over two inches, that’s when hail starts breaking solar panels. So it’s important to understand, first and foremost, if you’re developing a project, you need to know the frequency of those events. Once you know that, you need to start thinking about how to design a system to mitigate that risk.

The government agencies that look over land use, how do they handle this particular issue? Are there regulations in place to deal with hail risk?

The regulatory aspects still to consider are about land use. There are authorities with jurisdiction at the federal, state, and local level. Usually, it starts with the local level and with a use permit – a conditional use permit. The developer goes in front of the township or the city or the county, whoever has jurisdiction of wherever the property is going to go. That’s where it gets political.

To answer your question about hail, I don’t know if any of the [authority having jurisdictions] really care about hail. There are folks out there that don’t like solar because it’s an eyesore. I respect that – I don’t agree with that, per se, but I understand and appreciate it. There’s folks with an agenda that just don’t want solar.

So okay, how can developers approach hail risk in a way that makes communities more comfortable?

The bad news is that solar panels use a lot of glass. They take up a lot of land. If you have hail dropping from the sky, that’s a risk.

The good news is that you can design a system to be resilient to that. Even in places like Texas, where you get large hail, preparing can mean the difference between a project that is destroyed and a project that isn’t. We did a case study about a project in the East Texas area called Fighting Jays that had catastrophic damage. We’re very familiar with the area, we work with a lot of clients, and we found three other projects within a five-mile radius that all had minimal damage. That simple decision [to be ready for when storms hit] can make the complete difference.

Yellow

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Q&A

How the Wind Industry Can Fight Back

A conversation with Chris Moyer of Echo Communications

The Q&A subject.
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Today’s conversation is with Chris Moyer of Echo Communications, a D.C.-based communications firm that focuses on defending zero- and low-carbon energy and federal investments in climate action. Moyer, a veteran communications adviser who previously worked on Capitol Hill, has some hot takes as of late about how he believes industry and political leaders have in his view failed to properly rebut attacks on solar and wind energy, in addition to the Inflation Reduction Act. On Tuesday he sent an email blast out to his listserv – which I am on – that boldly declared: “The Wind Industry’s Strategy is Failing.”

Of course after getting that email, it shouldn’t surprise readers of The Fight to hear I had to understand what he meant by that, and share it with all of you. So here goes. The following conversation has been abridged and lightly edited for clarity.

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Hotspots

A New York Town Bans Both Renewable Energy And Data Centers

And more on this week’s most important conflicts around renewable energy.

The United States.
Heatmap Illustration/Getty Images

1. Chautauqua, New York – More rural New York towns are banning renewable energy.

  • Chautauqua, a vacation town in southern New York, has now reportedly issued a one-year moratorium on wind projects – though it’s not entirely obvious whether a wind project is in active development within its boundaries, and town officials have confessed none are being planned as of now.
  • Apparently, per local press, this temporary ban is tied to a broader effort to update the town’s overall land use plan to “manage renewable energy and other emerging high-impact uses” – and will lead to an ordinance that restricts data centers as well as solar and wind projects.
  • I anticipate this strategy where towns update land use plans to target data centers and renewables at the same time will be a lasting trend.

2. Virginia Beach, Virginia – Dominion Energy’s Coastal Virginia offshore wind project will learn its fate under the Trump administration by this fall, after a federal judge ruled that the Justice Department must come to a decision on how it’ll handle a court challenge against its permits by September.

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Spotlight

The Wind Projects Breaking the Wyoming GOP

It’s governor versus secretary of state, with the fate of the local clean energy industry hanging in the balance.

Wyoming Governor Mark Gordon.
Heatmap Illustration/Getty Images

I’m seeing signs that the fight over a hydrogen project in Wyoming is fracturing the state’s Republican political leadership over wind energy, threatening to trigger a war over the future of the sector in a historically friendly state for development.

At issue is the Pronghorn Clean Energy hydrogen project, proposed in the small town of Glenrock in rural Converse County, which would receive power from one wind farm nearby and another in neighboring Niobrara County. If completed, Pronghorn is expected to produce “green” hydrogen that would be transported to airports for commercial use in jet fuel. It is backed by a consortium of U.S. and international companies including Acconia and Nordex.

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