PG&E Surpasses 1 Million Customer Solar Interconnections--Most of Any U.S. Utility

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From one million rooftops to a smarter, more resilient grid—how customer solar is powering the next era of clean energy OAKLAND, Calif., June 4, 2026 /PRNewswire/ -- Pacific Gas and Electric Company (PG&E) today announced that it has surpassed 1 million customers with solar systems connected to its electric grid—more than any utility in the United States—marking a defining moment in the evolution of customer‑driven clean energy in California. This milestone reflects decades of customer choice, policy leadership, and grid innovation as solar moved from an expensive niche technology to a cornerstone of California's energy system. Customer solar adoption has evolved from limited activity in the 1990s, to steady growth in the 2000s, to rapid expansion in the 2010s, culminating in more than half a million new interconnections between 2020-2025 and more than 70,000 new solar installations annually over the past two years. Across Northern and Central California, families, businesses, farmers, schools, and communities have chosen to harness the sun—lowering emissions, increasing energy resilience, and reshaping how electricity is produced and used. Together, PG&E's solar customers represent one of the largest concentrations of customer sited, grid‑connected solar generation in the world, helping avoid millions of tons of greenhouse gas emissions over time. "PG&E supports solar at every scale and has enabled more solar adoption than any utility in the country," said Jason Glickman, Executive Vice President, Strategy and Growth, PG&E. "Reaching one million interconnections is ultimately a story about our customers—but it's also a story about what comes next. The future of solar is not just about producing clean electricity. It's about integrating solar and storage in ways that deliver value for all customers by strengthening the grid and improving resilience." Beyond Adoption: Building the Foundation for the Grid of the FutureThe story of one million solar customers is not just about clean energy adoption and generation - it marks a shift toward a fully integrated, customer‑powered energy system that treats rooftop solar as core grid infrastructure. As customer sited solar scaled rapidly, PG&E's focus expanded beyond simply connecting these systems to also modernizing the grid for safe and reliable tw...

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