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The rooftop solar module and storage market in California is undergoing transformation, prompting the industry to adapt to this evolving landscape.

For over ten years, California has held the position as the leading solar market in the United States, consistently installing more solar capacity annually than any other state until Texas surpassed it in 2021. Although California regained the top spot in 2022 and installations appear robust in 2023, the shift in 2021 could serve as a glimpse into the future.

Towards the end of 2022, following extensive discussions, the California Public Utilities Commission (CPUC) unanimously endorsed a fresh method to reimburse rooftop solar users for surplus energy production. This ruling transitions the state from the retail rate “net metering” system to a revised “net billing” framework, reducing the worth of rooftop solar credits by approximately 75%.

The Solar Energy Industries Association (SEIA) and its collaborators persist in pushing for a policy landscape that facilitates the operations of solar and storage enterprises, meeting California’s undeniable need for clean energy. Rooftop solar and storage stand as crucial resilience sources, ensuring dependable power for residences and essential infrastructure. It is imperative that state policies empower Californians to opt for this technology amidst escalating climate repercussions and soaring electricity expenses.

The decision by California state officials to reduce compensation rates for rooftop solar aimed to incentivize the installation of residential battery storage systems, enabling the export of electricity during grid strain periods.

Despite the initial intent, the CPUC recently sanctioned regulations that bar residential storage users from utilizing their surplus energy credits to offset utility delivery fees. This alteration disrupts the delicate equilibrium established during the Net Billing Tariff deliberations, discouraging solar and storage clients from exporting energy to the grid as they won’t be fully reimbursed for such exports. The California solar and storage sector was already facing challenges post the shift to net billing, and this new policy introduces a layer of complexity that poses a formidable obstacle to overcome.