California is overhauling its utility rate structures to better utilize its vast solar power reserves and accelerate industrial electrification. While the state generates significant electricity during daylight hours, manufacturing facilities have struggled to transition from fossil gas due to high power costs and punitive demand charges. New legislative proposals and utility mandates aim to implement dynamic pricing, encouraging the state’s 36,000 industrial sites to shift operations to peak solar hours. This strategy seeks to lower CO2 emission levels while making clean energy more economically viable for heavy industry.
California’s power grid faces a persistent imbalance characterized by an abundance of solar energy during the day followed by a sharp supply drop at night. To address this, major utilities are developing innovative electricity rates designed to incentivize large industrial customers to consume power when the sun is brightest. This shift is viewed as a vital step in decarbonizing the state’s massive manufacturing sector, which currently relies heavily on fossil gas for thermal processes.
The state is home to approximately 36,000 manufacturing facilities producing a wide range of goods, from processed foods and olive oil to cardboard and pharmaceuticals. Together, these sites account for roughly 25% of California’s fossil gas consumption and more than 20% of its annual greenhouse gas emissions. While switching to electric boilers and industrial heat pumps would drastically reduce CO2 emission levels, many companies remain hesitant due to electricity prices that are more than double the national average.
Industrial customers in California currently pay over 19 cents per kilowatt-hour, supplemented by “demand charges” based on their peak usage. These fees can account for 30% of a facility’s total bill, effectively penalizing companies for increasing their electricity use even when the grid has a surplus of renewable energy. State Senator Josh Becker recently introduced Senate Bill 943 to address these financial hurdles, proposing rate reforms that help manufacturers switch to electric heat.
Under a mandate from the California Public Utilities Commission, the state’s three largest investor-owned utilities—Pacific Gas & Electric, Southern California Edison, and San Diego Gas & Electric—must offer dynamic hourly pricing by 2027. These rates would track wholesale market fluctuations, rewarding facilities that use thermal storage systems to bank energy or shift production schedules to hours when renewable energy is plentiful and inexpensive.
Advocates argue that these reforms create a more efficient grid for all ratepayers. By encouraging industries to consume surplus solar power that might otherwise be wasted, utilities can avoid costly infrastructure expansions and reduce the need for fossil-fuel-burning plants during peak demand. When combined with existing incentives for clean technology, these new rate structures are expected to provide the economic clarity needed for California’s industrial sector to move away from fossil fuels.