PG&E Corporate Responsibility and Sustainability Report 2018

PG&E Chapter 11 Update

Solar and Distributed Generation

Private rooftop solar plays a key role in California’s clean energy future, one in which innovative energy technologies and distributed energy resources like solar power, battery storage and electric vehicles allow customers to have more choice and control over the type and amount of energy they use.

Our Approach

PG&E is committed to expanding the use of clean energy options that meet customer energy needs and California’s environmental goals in a smart and meaningful way. We are working to promote a shared understanding of the value provided by a connected grid while supporting energy policies that allow for the continued growth of clean and affordable energy.

PG&E provides a variety of tools and resources for customers who want to use solar energy and other distributed energy resources. Our website provides information regarding the process of adopting solar and helps customers determine if solar is right for them. PG&E also offers incentive programs for low-income solar, solar thermal water heating, fuel cells, wind, battery storage and other advanced technologies.

Customers can also enroll in PG&E’s Solar Choice program or the Regional Renewable Choice program, which give customers the option to purchase up to 100 percent of their electricity from a program generating renewable power within California.

2018 Milestones

In 2018, PG&E’s system reached a milestone of 3,800 megawatts (MW) of installed private rooftop solar capacity connected into/on the energy grid.

Beyond this milestone, PG&E continued to support solar and other clean energy technologies:

  • Supported customer self-generation. As of early 2019, PG&E had provided financial incentives for over 2,600 projects since 2001, representing $655 million in incentives and approximately 333 MW capacity for energy storage, fuel cells, wind turbines, internal combustion engines and other distributed generation through the Self-Generation Incentive Program. As of year-end 2018, there were nearly 3,700 residential customers with battery storage in their homes—more than a fivefold increase compared to the number of battery storage systems as of 2017—representing 75 MW of installed private battery storage.
  • Supported customer solar water heating. We provided average incentives of about $3,200 each to single-family residential solar water heating projects, and an average of $60,000 for multi-family residential and commercial solar water heating installations. These incentives have helped support nearly 1,700 gas-offsetting projects of all types since the program’s inception, which, in total, are expected to avoid more than 1.8 million natural gas therms annually. The solar water heating program is scheduled to run through June 30, 2020 or until the budget of $250 million is exhausted, whichever occurs first, though state legislation may further extend the program.
  • Raised customer awareness of solar power and other generation technology options. We offered a wide range of training opportunities on solar and other technologies for different audiences and education levels, both live and simulcast. We held 38 solar classes in 2018 with nearly 1,000 attendees in total.

Measuring Progress

In 2018, we reached nearly 400,000 interconnected solar systems, representing about 20 percent of all private rooftop solar in the United States. During the year, PG&E also connected 77 percent of customers’ private solar systems to the electric grid within three days. Additionally, as of the end of 2018, there were nearly 4,600 Solar Choice accounts, serviced by 21.9 MW of installed solar.

PG&E Interconnected Customer Solar Systems
Total Solar Interconnections = Nearly 400,000
1993 – 2000 139
2001 508
2002 1,082
2003 1,628
2004 2,993
2005 2,638
2006 4,110
2007 6,301
2008 6,542
2009 9,019
2010 10,413
2011 13,513
2012 17,544
2013 29,087
2014 45,384
2015 65,479
2016 67,847
2017 56,182
2018 59,183