How to Unlock Super Cheap Rooftop Solar

Why isn’t rooftop solar cheaper in America? In Australia in 2024, a standard rooftop system can cost as little as $0.90 per watt. In the U.S., a similar system might go for $4 per watt. If America could come even close to Australia’s rooftop solar prices, then we would be able to decarbonize the power system much faster than we are now.

Mary Powell has the answers. She is the chief executive officer of Sunrun, a $2.6 billion company that is the largest rooftop solar and battery installer in the U.S. Sunrun has set up or managed more than 900,000 rooftop systems across the U.S. Powell previously led Green Mountain Power, Vermont’s largest investor-owned power company.

On this week’s episode of Shift Key, Rob and Jesse talk about how the rooftop solar business works and what’s driving America’s higher costs. Shift Key is hosted by Robinson Meyer, the founding executive editor of Heatmap, and Jesse Jenkins, a professor of energy systems engineering at Princeton University.

Previously on Shift Key: Does Rooftop Solar Actually Help the Climate?

Mentioned:

What solar panels cost in Australia

The Department of Energy’s quarterly solar update

Introduction to solar soft costs

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This episode of Shift Key is sponsored by…

Watershed's climate data engine helps companies measure and reduce their emissions, turning the data they already have into an audit-ready carbon footprint backed by the latest climate science. Get the sustainability data you need in weeks, not months. Learn more at watershed.com.

FischTank PR uses its decade-plus experience working in the climate tech space to introduce clients to top-tier journalists at the right time, for the right story. We don’t tire-spin — we take action and understand we are hired to get results. To learn more, visit fischtankpr.com.

Music for Shift Key is by Adam Kromelow.

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