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Environment groups urge more rooftop solar, efficiency and grid-enhancing technologies to lower costs and emissions
Summary
Environment California and allied witnesses told the Little Hoover Commission that rooftop solar, energy efficiency, grid-enhancing technologies and surplus interconnection can speed emissions reductions and avoid expensive new transmission and habitat loss, and they warned recent policy changes have reduced solar installations.
Laura Dean, State Director for Environment California, told the Little Hoover Commission that rooftop solar, paired with batteries and demand management, accelerates fossil fuel displacement and preserves open space by avoiding utility-scale land conversion.
Why it matters: Environment California argued that distributed solar and faster deployment of renewables can lower system costs and protect wildlife habitat — roughly 5,200 acres avoided per gigawatt if rooftop generation substitutes for utility-scale conversion, according to a figure cited in testimony.
Highlights from testimony: Dean emphasized that solar installations and energy efficiency together helped produce more than 100 days last year when at least brief periods of the state’s demand were met entirely by renewables. She warned that after net-metering changes in 2022–23, rooftop installations fell sharply, which threatens the state’s pathway to meeting SB 100 and other clean-energy goals.
Policy tools discussed: Environment California recommended a ‘‘fair customer value’’ for solar, against taxes on rooftop generation, expansion of virtual power plants and community solar, and use of grid-enhancing technologies such as sensors and advanced reconductoring to increase capacity on existing lines without costly new construction. Dean also cited a Lawrence Livermore/Goldman report on “surplus interconnection” that estimates rapid near-term additions by using space at existing power plants.
Ending: Environment California urged policymakers to preserve incentives for rooftop solar, invest in demand response and efficiency, and pursue lower-cost grid upgrades. The commission said it will include environmental and agency perspectives in future panels.
