Grid edge
Smart thermostats are helping Arizona's grid ride out brutal heat
Amid soaring temperatures, Arizona has seen success with utility programs that incentivize people to turn down the AC when the power grid is stressed.
Utilities
Long-duration energy storage
Sacramento utility rolls out its first long-duration grid batteries
The municipal utility is tapping flow batteries from ESS for on-demand clean power. The project, ESS’ biggest, will provide an early test of the tech’s potential.
Sacramento's municipal utility takes delivery of multiple Energy Warehouse storage units made by ESS. (ESS)
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Solar
Utilities in New Hampshire unexpectedly back solar net metering
In a sharp turnaround from their previous stance, Eversource, Unitil and Liberty Utilities testified in support of keeping the state's net-metering incentive intact. -
Solar
The fight over California community solar: 'It's everyone vs. utilities'
Α broad and unlikely coalition has united behind a proposal that would finally let community solar flourish in California. Utilities are trying to stop it.
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Clean energy
Hawaii quit coal one year ago. Here's how it's been going
The lights stayed on, but the state's experience offers some lessons on what can go wrong in the transition to clean energy. -
Utilities
Who pays when utilities get sued over wildfires?
With fire risk on the rise and neglected utility equipment sparking more deadly conflagrations, all electricity customers may be left holding the bag.
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Batteries
Vermont’s biggest utility dramatically expands home battery subsidies
Since 2015, Vermont's Green Mountain Power has helped a limited number of customers install home batteries each year. Now the program cap is gone.
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Energy efficiency
Why efficient buildings are key to decarbonizing the power grid
New data shows that efficient, grid-responsive buildings would make a zero-carbon grid $100B cheaper per year — if utilities and policymakers can act in time.
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EV charging
The grid isn't ready for the EV boom. Can better data fix that?
Utilities lack the necessary data to plan ahead for the coming influx of EV charging. A new data-sharing consortium could help them overcome that obstacle.
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Clean energy
Is the biggest US public utility finally catching up on clean energy?
Tennessee Valley Authority is buying massive amounts of renewables. But critics say it's still relying too much on fossil fuels to serve its 10 million customers.
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Utilities
Another major utility is accelerating its transition to renewables
Michigan's DTE Energy has announced a plan to spend $11 billion on clean energy construction and close its remaining coal plants sooner.
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