Sign In or Create an Account.

By continuing, you agree to the Terms of Service and acknowledge our Privacy Policy

Decarbonize Your Life

Why You Should Buy Clean Power — However You Can Get It

Put your roof to use.

Why You Should Buy Clean Power — However You Can Get It
Heatmap Illustration/Getty Images

Time is not our friend when it comes to climate change. The value of lowering greenhouse gas emissions today is greater than doing it in five years because every molecule of carbon we emit between now and then will accumulate in the atmosphere. You, as an individual, can’t make your utility build or buy more solar power more quickly. But you can start generating carbon-free kilowatts at home in a matter of weeks. (For more on that, check out our guide to getting rooftop solar.)

There is a heated debate among clean energy experts about the value of rooftop solar in the climate fight. Heatmap contributor and Princeton professor Jesse Jenkins argues that because big utility-scale solar installations are so much cheaper to build, rooftop solar rarely does little more than crowd out these projects, making our future clean energy system more expensive.

But as Eric O’Shaughnessy, a renewable energy market research analyst, told me, we don’t have a central planner who can wave a wand and manifest the most cost effective system. And in the real world, economics isn't the only factor determining what we build. Although the U.S. is now building more renewable energy than it has in the past, and the cost is now on par with — if not lower than — new fossil fuel generation, the clean energy industry is battling serious headwinds. A stubborn trifecta of inflation, supply chain constraints, and high interest rates has slowed utility-scale development compared to what it might have looked like. Community opposition to clean energy projects has increased and will likely worsen as the least-controversial sites for development get used up. And we simply do not have enough power lines to accommodate new clean generation — solar and wind projects are waiting years to get approval to connect to the transmission system.

All of this is becoming a problem for our climate goals. A recent Rhodium Group report found that the pace of clean energy deployment has lagged projections of what programs under the Inflation Reduction Act could be achieving — projections that already fall short of how much we should be building to meet our emissions targets. Though some of the challenges may ease — for example, the Federal Reserve just cut interest rates, which had become a significant obstacle for clean energy deployment — others are likely to take longer to resolve.

Homeowners, by contrast, can avoid land-use conflicts and act comparatively swiftly. “This is a space that's not being used,” O’Shaughnessy said. “Most people don't ever go to their roof. There’s no site acquisition. You don’t have to worry about an endangered turtle.”

The immediate emissions benefits of installing solar really depend on where you live and how dirty your local grid is, among other factors. But the reason we still put rooftop solar in the number two slot is that it’s such a high leverage climate action in other ways. For example, having a solar array can help you afford future investments in other climate solutions like heat pumps and EVs, because it mitigates against electric bill increases. It can also reduce overall electricity demand in your neighborhood, which may help your utility avoid costly grid upgrades and keep rates lower in your area.

If you pair your solar array with a battery, you may be able to join a utility program that synchronizes thousands of these systems in your region to decrease strain on the grid, avoid blackouts, and preempt the need to deploy fossil fueled “peaker” plants in periods of especially high demand. Various estimates from the Department of Energy and private research firms have found that such “virtual power plants” have the potential to save billions of dollars over the next decade. These programs will typically pay you to participate, too.

Researchers have also found that rooftop solar is “contagious” — one new installation in a neighborhood can cascade into several. “If you install solar, you are going to go through a process that most people have not,” O’Shaughnessy told me. “In doing that, you are going up this learning curve, and all of that is something that you can share with your friends, neighbors, family after the fact.”

If you’re a renter, or if you aren’t able to get rooftop solar today for some other reason, subscribing to a community solar project is another way to help speed up solar deployment in your region and reap some of the benefits that homeowners have access to. Community solar arrays are usually small installations on warehouse roofs, parking lots, or beside highways. Subscribers sign up for a portion of the electricity produced, and receive credits on their electric bills the same way they would with a rooftop system. These projects aren’t available everywhere, though. Solar United Neighbors, who we consulted for our rooftop solar guide, has more background reading and a directory of projects you can subscribe to.

(A brief note on a third option: choosing a “green” retail electricity provider. This is a much more indirect way to support the energy transition, and experts are split on whether it’s worth doing at all. In theory, it sends a demand signal for renewables and helps new projects get built, but there’s no way to really know how far your money is going. Because the benefits are not guaranteed, we are not including this option in this package.)

Getting rooftop solar can be a big, confusing project, and our guide on the subject will walk you through everything you need to know to feel prepared to tackle it.

Green

You’re out of free articles.

Subscribe today to experience Heatmap’s expert analysis 
of climate change, clean energy, and sustainability.
To continue reading
Create a free account or sign in to unlock more free articles.
or
Please enter an email address
By continuing, you agree to the Terms of Service and acknowledge our Privacy Policy
Politics

Trump’s Tiny Car Dream Has Big Problems

Adorable as they are, Japanese kei cars don’t really fit into American driving culture.

Donald Trump holding a tiny car.
Heatmap Illustration/Getty Images

It’s easy to feel jaded about America’s car culture when you travel abroad. Visit other countries and you’re likely to see a variety of cool, quirky, and affordable vehicles that aren’t sold in the United States, where bloated and expensive trucks and SUVs dominate.

Even President Trump is not immune from this feeling. He recently visited Japan and, like a study abroad student having a globalist epiphany, seems to have become obsessed with the country’s “kei” cars, the itty-bitty city autos that fill up the congested streets of Tokyo and other urban centers. Upon returning to America, Trump blasted out a social media message that led with, “I have just approved TINY CARS to be built in America,” and continued, “START BUILDING THEM NOW!!!”

Keep reading...Show less
AM Briefing

Nuclear Strategy

On MAHA vs. EPA, Congo’s cobalt curbs, and Chinese-French nuclear

Nuclear power.
Heatmap Illustration/Getty Images

Current conditions: In the Pacific Northwest, parts of the Olympics and Cascades are set for two feet of rain over the next two weeks • Australian firefighters are battling blazes in Victoria, New South Wales, and Tasmania • Temperatures plunged below freezing in New York City.


THE TOP FIVE

1. New defense spending bill makes nuclear power a ‘strategic technology’

The U.S. military is taking on a new role in the Trump administration’s investment strategy, with the Pentagon setting off a wave of quasi-nationalization deals that have seen the Department of Defense taking equity stakes in critical mineral projects. Now the military’s in-house lender, the Office of Strategic Capital, is making nuclear power a “strategic technology.” That’s according to the latest draft, published Sunday, of the National Defense Authorization Act making its way through Congress. The bill also gives the lender new authorities to charge and collect fees, hire specialized help, and insulate its loan agreements from legal challenges. The newly beefed up office could give the Trump administration a new tool for adding to its growing list of investments, as I previously wrote here.

Keep reading...Show less
Green
Bruce Westerman, the Capitol, a data center, and power lines.
Heatmap Illustration/Getty Images

After many months of will-they-won’t-they, it seems that the dream (or nightmare, to some) of getting a permitting reform bill through Congress is squarely back on the table.

“Permitting reform” has become a catch-all term for various ways of taking a machete to the thicket of bureaucracy bogging down infrastructure projects. Comprehensive permitting reform has been tried before but never quite succeeded. Now, a bipartisan group of lawmakers in the House are taking another stab at it with the SPEED Act, which passed the House Natural Resources Committee the week before Thanksgiving. The bill attempts to untangle just one portion of the permitting process — the National Environmental Policy Act, or NEPA.

Keep reading...Show less
Blue