To integrate an increasing percentage of renewables, Hawaiian Electric has turned to a standard solar+storage framework, matching all new solar capacity with an equal capacity of storage with four-hour duration.
With tortoise-sized openings at the bottom of the fence, and improved growth of plants vital to tortoise survival, a solar farm in Nevada can provide better habitat than the surrounding desert. First Solar found similar habitat gains in California.
Stanford researchers have a plan that would balance 2,000 GW of solar capacity and 2,300 GW of wind power with 3,300 GW of battery capacity and a large amount of flexible load. Consumers would save 64% on total energy bills, partly from electrification of transportation and heating.
To get long-duration storage costs down to 5 cents per kilowatt-hour, research teams funded by ARPA-E are pursuing breakthroughs in flow batteries, hydrogen storage and other technologies—even thermovoltaics.
At least seven utilities chose to bias their resource modeling against solar in 2019. The good news is that transparent utility modeling could fix the problem.
Boulder sees a public utility as a way to reach 100% renewables, while San Francisco aims for 100% clean energy, and Pueblo expects 10% to 14% savings.
Deer fence installed upside down lets foxes and other small wildlife through to forage and pursue prey. Solar developers in Tennessee and North Carolina have the photos to prove it.
Thousands of people across the Southeast have opposed utility plans to increase fixed fees on monthly bills, including a Georgia Power case to be decided soon. Making customers with solar “go away” is an explicit goal of at least one utility.
In this op-ed, journalist William Driscoll notes that land across the U.S. generally has at least 70% of the solar potential of land in the desert Southwest, according to data from a federal map. Yet that map needs a different color scheme to better reflect the data, he says.
To stop buying wholesale power from coal-heavy Tri-State, two co-op utilities in Colorado must first advise state regulators on setting a fair fee to exit their Tri-State contracts. A renewables-friendly wholesale competitor waits in the wings.
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