Topic hub
Review state utility and interconnection guidance for green-home projects, including service, metering, rates, approvals, and billing questions.
The utility is a separate approval authority with its own rules, tariffs, and timelines. Solar,
battery, and EV-charger projects each interact with it differently: interconnection for
generation, service and metering for charging, and rates for both.
A utility approval does not replace a permit or HOA approval, and a statewide solar rule does not
rewrite the utility's filed tariff. Program terms — rates, export compensation, metering, and
effective dates — are set by the tariff and change over time; the current filed version controls.
For most utilities, interconnection, and billing questions, start with the statewide rule, then check local permits and safety rules, utility requirements, governing documents, and the project contract. The property type and location determine which layer controls.
Usually a hardwired Level 2 (240-volt) charger requires a local electrical permit, and a panel or service upgrade is only sometimes required — a licensed electrician's load calculation decides. Special EV or time-of-use utility rates are optional but often available.
Usually yes — three separate approval tracks can apply to the same solar, battery, EV charger, or heat pump project, and no approval substitutes for another: a local building and electrical permit, community-association approval where one exists, and a utility interconnection or service arrangement for systems that connect to the grid.
Keep everything you sent and everything you received: the application, proof of delivery, the written decision, requests for more information, correspondence, and inspection reports. Federal and state consumer-protection guidance consistently treats your copies as the backbone of any later dispute.
No single rule controls a green home project. For most questions the controlling authority is the most specific binding rule issued by the highest body with jurisdiction: enacted statute outranks regulation, court opinion, PUC order or tariff, local code, agency guidance, permit office, utility interconnection rules, recorded governing documents, and contract.
Usually not by an outright ban. For a planned community, A.R.S. § 33-1816 bars an association from prohibiting a defined solar energy device, but permits reasonable placement rules that do not prevent installation or impair the device; condominiums, common elements, local codes, utilities, and older deed instruments require separate analysis.
Arizona residential solar usually requires a local permit and inspection path plus a separate utility interconnection approval. HOA, ownership, and contract questions are separate layers. The exact permit, code edition, fees, utility process, and approval sequence depend on the city or county, project design, property documents, and electric provider; verify them for the address before work begins.
California Civil Code sections 714 and 714.1 generally bar an effective prohibition of a compliant household rooftop solar system, but a condominium association may impose reasonable common-area, roof-maintenance, approval, and indemnity provisions. The roof's legal classification, local permits, and the written approval record still matter.
Sometimes. North Carolina General Statutes § 22B-20 generally makes a land-running covenant that prohibits or effectively prohibits a solar collector on covered residential property void and unenforceable, but it permits reasonable location and screening rules, preserves specific front-facing visibility restrictions, and excludes certain multi-story condominiums. HOA authority, local approvals, utility interconnection, and roof ownership remain separate questions.