Solar
Heliogen raises $108M for solar-powered industrial heat
The startup's machine-vision technology makes sunshine a viable alternative for carbon-intensive tasks like manufacturing steel and cement.
By Julian Spector .
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Clean energy
A microgrid powered only by solar and batteries points the way to bigger all-renewable grids
Australia’s Horizon Power and partner PXiSE showed they could power a town without generators. The implications for expanding renewable energy are massive.By Jeff St. John .
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Clean energy
Camus Energy: Grid software for small utilities with big clean energy ambitions
A San Francisco startup with Google software talent is helping rural co-ops and municipal utilities make big gains in renewables and distributed energy — without the high-tech price tag.By Jeff St. John .
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Long-duration energy storage
Stealthy storage contender Form Energy reveals secret formula: Iron and air
And it raised another $200 million to get to market.By Julian Spector .
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Climate justice
From climate justice organizing to legislating: How Rep. Khanh Pham helped pass Oregon's 100% clean grid law
A Q&A with Pham on how building a wide-ranging coalition and sitting down with affected industries led to a clean energy victory.By Julian Spector .
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Climate crisis
Hurricane-driven blackouts in New Orleans send a dire warning about the need for distributed energy
Entergy's new gas power plant couldn't stop a grid collapse. Community groups want to give local solar and batteries a chance.By Jeff St. John .
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Opinion
Making rural minigrid economics work for investors
CrossBorder Energy Access is bundling small-scale village power systems in Africa to unlock a multibillion-dollar electrification opportunity.By Olubunmi Olajide .
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Clean energy
What's the trick to keep grids humming along on solar, wind and batteries alone?
A Department of Energy program is testing a new type of "grid-forming" inverter that could make it possible.By Jeff St. John .
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Fun stuff
Friday Social: Meet the task force fighting for distributed energy resources
What started as a small network of NYC-based clean energy professionals has morphed into something much bigger.By Mike Munsell .
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EV charging
Why Amazon is investing in a startup that's shrinking the footprint of EV charging
Resilient Power uses cutting-edge electronics to make heavy-duty EV charging cheaper, smaller and more flexible.By Jeff St. John .