What it costs, what's permitted, and what to ask before you hire.
Last verified: 2026-05-31 · Well-sourced
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Utility impact
Electric: LADWP; gas: SoCalGas
Southern California Edison
As of 2026-05-30, SCE residential electric service runs on time-of-use (TOU) rate plans by default. The standard TOU option is TOU-D-4-9PM (4 PM-9 PM weekday peak window). Alternatives include TOU-D-5-8PM (5 PM-8 PM peak window for households that cannot shift evening load) and TOU-D-PRIME, a rate reserved for customers with an EV, plug-in hybrid, residential battery, or an electric heat pump for space or water heating. TOU-D-PRIME features lower peak rates paired with a higher daily basic charge (about $0.79/day, roughly $24/month). Under California's Net Billing Tariff (NEM 3.0), new residential solar customers in SCE territory must be on TOU-D-PRIME. Legacy tiered and earlier TOU plans (TOU-D-A, TOU-D-B, TOU-D-T) remain available to existing customers but are closed to new enrollment. Households planning heat pump HVAC, EV charging, battery storage, or whole-home electrification may want to compare TOU-D-4-9PM and TOU-D-PRIME; verify current per-kWh rates and plan rules at the provider site before switching.
As of 2026-05-30, LADWP residential electric customers default to rate schedule R-1A (Standard), a three-tier inclining-block structure (Tier 1 / Tier 2 / Tier 3). During summer high-demand months all three tiers price separately; in winter Tiers 2 and 3 are billed at the same rate. LADWP divides the City into two temperature zones (Zone 1 cooler, Zone 2 hotter inland) and gives Zone 2 a larger Tier 1 allowance. Bills also include a monthly Power Access Charge (PAC) that scales with the customer's highest energy use over the prior year. A time-of-use option, R-1B (TOU), is available on request. Important: LADWP is a municipal utility owned by the City of Los Angeles and is NOT regulated by the California Public Utilities Commission (CPUC); rates are set by the LA Board of Water and Power Commissioners. LADWP operates its own net-metering tariff (system cap 1 MW) and is NOT subject to CPUC's NEM 3.0 / Net Billing Tariff (NBT), which governs only the investor-owned utilities PG&E, SCE, and SDG&E. Homeowners should verify current rates on the LADWP residential rates page before sizing a project; LADWP filed rate increases for 2026.
$10,000–$20,000 — Installed cost for a single-family SoCal home adding a 10–15 kWh residential lithium-ion battery (Powerwall 3, IQ Battery 5P, FranklinWH) paired with new or existing solar, pre-incentive. Range covers a single battery at the low end through a paired-unit configuration at the high end. Excludes service-panel upgrades and major electrical rework.
Section 25D Residential Clean Energy Credit (battery storage)
Expired Dec 31, 2025. For 2023–2025: 30% of total installed cost, no cap (battery capacity at least 3 kWh). EXPIRED: This federal credit ended Dec 31, 2025 under the One Big Beautiful Bill Act (Public Law 119-21, signed July 4, 2025). Expenditures made after Dec 31, 2025 do not qualify — for §25D, the IRS treats the expenditure date as the date the installation is placed in service (completed), not the date of payment. A homeowner who paid a deposit in 2025 but whose system was placed in service in 2026 does not qualify. For installations placed in service during 2023–2025, the credit applied to battery storage systems with a rated capacity of at least 3 kilowatt-hours installed in a U.S. home used by the taxpayer as a residence (existing homes and new construction; principal residence not required; rentals not occupied by the taxpayer did not qualify). Standalone batteries (not paired with solar) were explicitly eligible from Jan 1, 2023 onward. The credit was nonrefundable with carryforward. Homeowners with eligible 2025 placed-in-service installations may still claim the credit on their 2025 federal tax return. Verify with a qualified tax professional.
California Self-Generation Incentive Program (SGIP) — residential battery storage
Up to $1,000/kWh (Equity Resiliency tier) or $1,100/kWh (Residential Solar and Storage Equity / San Joaquin Valley Residential tiers); General Market 'Small Residential Storage' tier up to $150/kWh. Per-project totals depend on installed battery capacity (kWh) and tier eligibility. Administered by the California Public Utilities Commission (CPUC) and delivered through utility program administrators (PG&E, Center for Sustainable Energy / SDG&E territory, SoCalGas, SCE; LADWP application opening separately). Tiers as of 2026-05-30: (1) Residential Solar and Storage Equity ($1,100/kWh) — available to low-income residential electric and/or gas customers in California; reservation window opened June 2, 2025. (2) Equity Resiliency ($1,000/kWh) — for IOU residential customers meeting additional eligibility criteria (typically high fire-threat district residency and/or medical baseline / income qualification — verify against the SGIP Handbook). (3) San Joaquin Valley Residential ($1,100/kWh) — PG&E and SCE residential customers in the San Joaquin Valley pilot footprint. (4) Small Residential Storage ($150/kWh) — General Market IOU residential customers. Applicants must reserve funds before installation; reservations require a one-year completion window and enrollment in a qualified Demand Response program. Tier eligibility, income documentation, and HFTD-tier residency must be verified against the current SGIP Handbook and the customer's utility administrator. Homeowners should consult their SGIP program administrator before signing a contract.
LADWP Customers and CPUC-IOU Programs — Eligibility Disclosure
As of 2026-05-30, LADWP residential customers are generally NOT eligible for the following CPUC-administered or IOU-funded California incentive programs, which are restricted to investor-owned utility (PG&E, SCE, SDG&E) customers: TECH Clean California (heat pump incentives — fully reserved as of Pass 2 in any case), HEEHRA-CA (single-family heat pump rebates — fully reserved single-family as of Pass 2), the Self-Generation Incentive Program (SGIP — battery storage), Golden State Rebates (IOU joint program), and the CPUC NEM 3.0 / Net Billing Tariff for new solar interconnections. LADWP runs its own parallel rebate portfolio (Consumer Rebate Program for HVAC / water heating / cool roofs, Charge Up LA! for EV chargers, and its own net-metering tariff). Homeowners served by LADWP should look to the LADWP CRP rather than CPUC-IOU programs when scoping incentives. Applies to all LADWP-served residential addresses. Homeowners who are unsure whether they are served by LADWP or SCE should check the utility name printed on their most recent electric bill — the eligible program set differs materially between the two utilities even within LA County.
As of 2026-05-31, residential battery energy storage system (ESS) installations in the City of Los Angeles are governed jointly by LADBS and the Los Angeles Fire Department (LAFD). An LADBS electrical permit is typically required, and LAFD review of the installation is governed by the joint LAFD/LADBS ESS Memo and Checklist plus City of Los Angeles Fire Code (LAFC) Chapter 12 and CFC §1207. When the installation meets all checklist criteria — exterior installation only, ESS unit surfaces at least 3 ft from any building openings (windows, doors, attic vents, dryer vents, kitchen exhausts, underfloor openings), at least 3 ft from the main electrical panel, unobstructed access pathways from opposite directions, and accompanying elevation diagram + site plan — the LADBS electrical application typically does not require additional LAFD plan review. Installations that are interior, in an attached garage, or do not meet checklist clearances require separate LAFD review with additional documentation and typically additional time. Paired PV+ESS systems may route through SolarAPP+ / ePermit-Solar when other eligibility criteria are met. Verify the current LAFD ESS Memo and Checklist (Ver 2.1 or later), clearance, and installation-location rules with LADBS and LAFD before scheduling installation.