Prices sag in California’s latest carbon auction

By Camille von Kaenel, Anne C. Mulkern | 02/26/2026 06:10 AM EST

Companies that have to cover their emissions under California’s cap-and-trade system exhibited low demand in last week’s sale.

Steam pours out of a smokestack at the Conoco Phillips refinery in Rodeo, Calif.

Polluters paid only the minimum price for emissions permits from California air regulators in the latest quarterly auction. Justin Sullivan/Getty Images

SACRAMENTO, California — Polluters paid the bare minimum for California carbon emission permits in the state’s latest quarterly auction and didn’t even buy everything on offer, a sign that uncertainty continues to dampen the market despite its recent reauthorization.

What happened: Officials announced Wednesday the results of the Feb. 18 sale of pollution permits that high-emitting companies buy from state regulators to cover their operations in California. The quarterly action, which was the first since the California Air Resources Board released new draft rules for the market, saw prices finalizing at $27.94 per ton of carbon. That was the minimum set by the state and $0.38 lower than the previous auction in November.

The auction also came up short for the first time since last May’s auction; the high-emitting companies left roughly 4 percent of the advance permits, which cover emissions in 2029, on the table.

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Overall, the sale generated roughly $919 million for state coffers.

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