Although thousands of new PV systems were installed in 2017, new solar installations and added solar capacity decreased from 2016 to 2017 by 36%. The year-to-year growth rate decreased due to perceived changes in the value proposition of solar.
Data Source: California Distributed Generation Statistics, Distributed Generation Interconnection Program Data, 2018
The data shows energy storage projects that submitted incentive applications through the Self-Generation Incentive Program (SGIP) in SDG&E’s service territory. The data shows a large increase in demand for storage projects in 2017, with total rated capacity exceeding 21 MW. The jump in projects are a result of increases in residential solar plus storage projects, time of use rates, decreasing system costs, as well as significant program modifications to the SGIP.
Data Source: California Distributed Generation Statistics, Self-Generation Incentive Program Data, 2018