Xcel Attracts ‘Unprecedented’ Low Prices for Solar and Wind Paired With Storage

By [email protected] An Xcel Energy solicitation set a new solar-plus-storage record after attracting a median price of $36 per megawatt-hour.

The rate is 20 percent lower than the cheapest PV-plus-battery power-purchase agreement seen to date, which came in a NextEra Energy Resources contract for Tucson Electric Power signed in May last year, at $45 per megawatt-hour.

The NextEra deal, which included 4 hours of lithium-ion battery-based storage, saw flow battery maker ViZn Energy Systems promising to deliver solar-plus-storage at a cost of $40 per megawatt-hour, still 9 percent above the median rate seen in the Xcel bid.

GTM Research Advisor Shayle Kann said on

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