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PG&E's Landmark Achievement in Solar Connectivity

Pacific Gas and Electric Company (PG&E) has reached a monumental achievement, boasting over one million customers connected to its solar power system, more than any other utility in the United States. This significant milestone underscores the evolving landscape of clean energy in California and marks a pivotal moment in the transition towards customer-driven renewable energy sources.

The Rise of Solar Energy in California

The journey towards one million solar interconnections hasn't happened overnight. Over the decades, solar technology has transformed from an expensive niche option into a central component of California's energy infrastructure. Initial steps were humble, with limited solar engagement throughout the 1990s, evolving dramatically during the following decades. The rapid growth seen in the 2010s is particularly noteworthy, with over half a million interconnections made just between 2020 and 2025 and annual installations exceeding 70,000 for the past two years. This growth has not only contributed to reducing carbon emissions but has also reshaped the way electricity is generated and utilized in the state.

Family households, local businesses, farms, and educational institutions across Northern and Central California have embraced solar energy, reaping the benefits of lower emissions, enhanced energy resilience, and cost savings. The combined efforts of PG&E's solar clientele account for one of the most substantial accumulations of customer-sited solar generation globally, contributing significantly to the state's goal of combating climate change.

A Collective Achievement

The achievement of reaching one million solar customers is as much about PG&E's strategy and innovation as it is about the choices made by these customers. Jason Glickman, PG&E's Executive Vice President of Strategy and Growth, emphasizes that this milestone is fundamentally a narrative centered around customer empowerment. Moving forward, the focus transcends merely generating clean electricity; it encompasses integrating solar and battery storage systems, thus adding greater value for all customers while simultaneously fortifying the grid and enhancing overall resilience.

Building the Future Grid

As the number of solar customers continues to rise, PG&E is not resting on its laurels. The company recognizes the need for an upgraded infrastructure that facilitates safe, reliable, and bi-directional energy flow. This involves significant investments in grid modernization, from automation to advanced power forecasting, and the seamless integration of solar energy systems with battery storage technology.

This level of integration is revolutionizing independent solar connections into a cohesive, responsive energy network capable of adapting to customer needs and dynamic grid conditions. PG&E supports this effort through the Clean Energy Calculator, which aids customers in evaluating their options for solar and battery storage technology.

Virtual Power Plants: A Step into the Future

Innovative concepts such as Virtual Power Plants (VPPs) are redefining energy distribution and consumption. These networks leverage the array of customer-owned solar and battery systems, allowing for coordinated energy dispatch during peak demand periods. For the participants, VPPs offer benefits like personal energy efficiency, battery storage for power outages, and the ability to share excess energy, which collectively enhances grid reliability and optimizes overall performance.

In a groundbreaking demonstration in July 2025, PG&E orchestrated a coordinated demand response event that successfully dispatched 535 megawatts back to the grid—a feat comparable to the output of a large power plant, showcasing the potential of customer participants to support grid operations actively.

Fostering Future Innovations

Looking ahead, PG&E is also keen on embracing new solar and storage technologies, including plug-in systems, which promise to extend access to renewable energy, especially for renters and underserved communities. PG&E advocates ensuring that emerging technologies connect to the grid safely and transparently,
maintaining the highest standards of safety for customers, their neighbors, and utility personnel.

Conclusion: A Shared Vision for a Greener Future

The surpassing of one million solar connections represents a critical evolution in California's energy ecosystem. As the grid transitions into a more distributed, digital, and participatory system, customer-owned solar systems—especially when paired with storage—will be crucial in delivering sustainable energy solutionsAt scale. For more insights into how PG&E aids customers in adopting solar technology, visit their official website.

About PG&E

Pacific Gas and Electric Company, a subsidiary of PGE Corporation, operates as a natural gas and electric utility servicing over sixteen million residents across a vast 70,000 square mile area in Northern and Central California.