Sunrun has taken initial steps to build on its concept of neighborhood microgrids. It signed contracts with three community choice aggregators (CCAs) in the San Francisco Bay Area designed to meet state-mandated resource adequacy requirements.
The solar company signed resiliency contracts in mid-2020 with Peninsula Clean Energy (PCE), East Bay Community Energy (EBCE) and the Silicon Valley Clean Energy Authority (SVCE). Silicon Valley Power, the city of Santa Clara’s municipal utility, was part of the 2019 solicitation in which Sunrun was chosen, but the utility ultimately decided to opt out of a contract with the company.
Sunrun has been signing up homeowners to install solar plus battery storage systems on their roofs. Sunrun pays them an incentive of $1,250 to give up a portion of the stored power. The solar/storage systems will also provide power to residences on a daily basis and in case of utility power shutoffs.
The company will move power from the solar plus storage systems installed on the residential roofs to California Independent System Operator-controlled transmission lines on a daily basis to satisfy the CCAs’ resource adequacy requirement.