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Utility company working on the future of clean energy


Pacific Gas and Electric Company (PG&E) customers received more renewable, greenhouse gas-free electricity in 2021 than ever before. PG&E’s mix of power sources remains among the cleanest in the country.

PG&E estimates that 50% of its customers’ electricity in 2021 came from specified eligible renewable resources, including bioenergy, geothermal, small hydro, solar and wind, according to its recent Form 10-K. Overall, 93% of its customers’ electricity came from greenhouse gas (GHG)-free resources, including renewables, nuclear and large hydroelectric plants.

“Working with our customers, communities and other partners, we have transformed California’s energy landscape by creating a robust renewable energy market and reducing greenhouse gas emissions across the state. Now we’re adding more battery energy storage to enable even more renewable energy on our electrical grid, paving the way for a healthier environment and a carbon-neutral energy system for all Californians,” said Patti. Poppe, CEO of PG&E Corporation.

PG&E strongly supports California’s clean energy policies, renewable energy goals, and efforts to limit and adapt to the impacts of climate change. Based on current projections, PG&E is on track to meet the state’s carbon-free and renewable energy requirements under Senate Bill 100, including providing 60% of its electricity from of eligible renewable resources by 2030.

Solar dominates the energy mix

At 54%, utility-scale solar represents the largest portion of PG&E’s total renewable energy mix. The company has more than 250 power purchase agreements eligible for the Renewable Energy Portfolio Standard, totaling more than 6,500 megawatts (MW) of renewable energy. Of that, about two-thirds is solar energy. According to the ISO (California Independent System Operator), one MW produces roughly enough electricity to power 750 homes. PG&E also has 445 MW of eligible renewable generation, including 13 solar power plants, which are primarily located in California’s Central Valley and generate up to 152 MW of clean energy.

Additionally, PG&E has connected more than 608,000 customers with rooftop solar panels to the power grid and is supporting customers with resources before, during and after they go solar. One in five solar rooftops in the country is within PG&E’s service area.

Batteries: the new frontier

PG&E continues to invest in battery energy storage on behalf of its customers. Battery storage improves overall grid reliability, integrates renewable energy, and helps customers save energy and money.

The company has contracts for battery energy storage projects totaling more than 3,300 MW of capacity to be deployed through 2024. More than 600 MW of new battery storage capacity has already been connected to the city’s electricity grid. ‘State.

PG&E plans to commission an additional 1,100 MW of storage capacity in 2022 and 2023, including PG&E’s Elkhorn Battery in Monterey County, a 182.5 MW BESS, which is expected to be operational before summer 2022, pending final testing and certification.

Battery energy storage allows PG&E and other utilities to store excess solar or wind power for later use. According to the ISO, there are currently times in the middle of the day when California’s renewable resources can generate more electricity than customers need.

Customer battery energy storage

In addition to large-scale, grid-scale battery storage, PG&E is the leading U.S. utility in deploying behind-the-meter (BTM) residential battery storage capacity and connects new systems to the grid every month. More than 33,000 PG&E residential and commercial customers have installed and connected BTM battery storage systems to the grid in PG&E’s service area, totaling more than 360 MW of capacity. These customers could on average count on more than 10 hours of critical backup power using their storage system.

A portion of these systems are funded by California’s Self Generation Incentive Program (SGIP), in which PG&E offers financial incentives to commercial and residential customers installing new qualifying equipment for energy generation and storage. This is a way for customers to prepare for extreme weather events and potential public safety power outage events due to rapidly changing environmental conditions in California.