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David Roberts

David Roberts

David Roberts writes about clean energy and politics at his newsletter, Volts. Previously, he covered the same subjects for five years at Vox, and before that for 10 years at Grist.

Energy Storage
David Roberts

Long-duration energy storage can help clean up the grid, but only if it's super cheap

To compete with clean firm generation, long-duration storage needs to come down massively in price.

Long-duration energy storage can help clean up the grid, but only if it's super cheap
distributed energy
David Roberts

Why rooftop solar and home batteries make a clean grid vastly more affordable

Distributed energy is not an alternative to big power plants — it's a complement.

Why rooftop solar and home batteries make a clean grid vastly more affordable
Energy Storage
David Roberts

Battery Week: Competitors to lithium-ion batteries in the grid storage market

Lithium-ion batteries probably have cars locked up, but what about grid storage?

Battery Week: Competitors to lithium-ion batteries in the grid storage market
climate policy
David Roberts

Washington state now has the nation's most ambitious climate policy

And yes, it includes carbon pricing.

Washington state now has the nation's most ambitious climate policy
Energy Storage
David Roberts

The many varieties of lithium-ion batteries battling for market share

Even a small niche in a trillion-dollar market is a big prize.

The many varieties of lithium-ion batteries battling for market share
Energy Storage
David Roberts

How do lithium-ion batteries actually work? David Roberts explains

It's still battery week, and it's finally time to get anodes and cathodes straight.

How do lithium-ion batteries actually work? David Roberts explains
batteries
David Roberts

Why lithium-ion batteries are so important

The kickoff to a new battery series explains how LIBs became the workhorse of the electric vehicle and energy storage fleet.

Why lithium-ion batteries are so important
Biden administration
David Roberts

Biden's tax plan goes after the little fossil fuel subsidies, but not the big ones

Direct subsidies don't amount to much.

Biden's tax plan goes after the little fossil fuel subsidies, but not the big ones