A Comprehensive Guide to Electric Submetering Regulations in California
For property owners, developers, and managers across the Golden State, utility management is undergoing a massive shift. As the state aggressively pursues its clean energy targets, managing energy consumption efficiently is no longer just an environmental ideal - it is a financial and regulatory necessity.
One of the most effective strategies to promote conservation and protect your bottom line is Electric Submetering California properties. By deploying individual meters for each unit or high-demand asset, property owners can transition away from inaccurate, flat-fee master billing. Instead, they can ensure that tenants or specific equipment usage are billed with absolute precision.
However, California’s regulatory landscape is notoriously strict. To stay compliant while optimizing your utility recovery, you need to understand the fundamental laws governing electric submetering.
The Regulatory Core: California Public Utilities Code Section 739.5
The bedrock of electric submetering policy in California is Public Utilities Code Section 739.5. This statute establishes clear boundaries for master-metered landlords who bill sub-metered tenants:Â
The Equal-Rate Rule: Landlords are strictly prohibited from turning a profit on the resale of electricity. The billing rates charged to a sub-metered tenant must exactly match the public tariff rates that the local investor-owned utility (such as PG&E, SCE, or SDG&E) would charge if that tenant were direct-metered.
Detailed Itemization: Transparency is a legal mandate. Every tenant invoice must itemize opening and closing meter readings, date ranges, the exact rate structures applied (including baseline allocations), and the specific billing agent's contact details.
Passing Along Rebates: If the master-metered account receives any state climate credits, baseline discounts, or utility rebates, a proportionate share of those financial benefits must be legally passed directly down to the sub-metered tenants.
Hardware Standards and County Verification
You cannot simply buy any off-the-shelf meter and start generating binding tenant bills. Under California law, all commercial and residential submeters must satisfy stringent structural and technological rules.
Submeters must be officially inspected, tested, and sealed for accuracy under California Business and Professions Code regulations. Property owners are required to submit their submetering hardware data to the local County Department of Weights and Measures. This ensures that the equipment is verified for commercial accuracy, protecting tenants from faulty hardware and shielding landlords from costly legal disputes. Furthermore, submeters must be accessible for reading without forcing the landlord or billing agent to step inside a tenant’s private living space.
The EV Submetering Frontier
California has also carved out historic, forward-thinking paths by officially approving the submetering of Electric Vehicles (EVs) independently from a property’s primary utility meter. Historically, taking advantage of cheap, off-peak EV charging rates required installing an expensive, separate utility-grade meter.
With modern submetering and smart communication protocols, fleet managers and multiunit property owners can track and bill EV charging separately through a unified, cost-effective infrastructure. This accelerates EV adoption while optimizing demand-response capabilities across the local grid.
Achieve Seamless Compliance with Roshan Energy
Mastering the technicalities of Electric Submetering California laws requires precision hardware, accurate software, and an in-depth understanding of evolving utility tariffs. That is where Roshan Energy steps in.
We provide end-to-end electric submetering services tailored specifically to California's rigid regulatory standards. From installing state-approved, wireless individual meters to managing complex, fully itemized monthly billing, we take the administrative burden off your shoulders. Partner with Roshan Energy today to streamline your utility cost recovery, foster fair tenant conservation, and ensure your properties remain perfectly aligned with state law.















