Solar & Battery Guides
California-focused rate analysis, NEM 3.0 payback math, and battery economics (17 guides)
Featured Guide
IncentivesCalifornia SGIP Battery Rebates in 2026: What Is Still Open
A current guide to California SGIP battery funding after the 2025 ratepayer-budget deadline, including AB 209 equity funding and live availability checks.
Latest Guides
California Plug-In Solar: Is SB 868 Law Yet?
Current 2026 status of California SB 868 and what the proposed 1,200 W plug-in solar interconnection exemption would and would not mean today.
Permitting & PTOCity Solar Permit vs Utility Interconnection and PTO: Why One Approval Is Not the Other
A clear decision guide to the separate city/AHJ permit, local inspection, utility interconnection, utility field inspection and Permission to Operate milestones.
Permitting & PTOEl Cerrito Solar Permit Plans: What Should a Service Include?
Before paying for solar permit plans in El Cerrito, separate SolarAPP+ eligibility, City plan requirements, structural scope and PG&E interconnection work.
Permitting & PTOEl Paso Electric Solar Inspection Failed: REC Meter vs Net Meter
What an EPE field-inspection failure means when REC and revenue meters are far apart, and what to verify before requesting reinspection.
Permitting & PTOLong Beach Solar Permit Denied: Express vs Full Review
How to tell whether a Long Beach solar + battery project qualifies for Express permitting or needs full plan review and professional documents.
Permitting & PTOPG&E Solar Installed but No PTO: What to Verify if the Installer Is Gone
A decision checklist for PG&E customers who discover a completed solar project never received Permission to Operate, especially when the original installer is unavailable.
Permitting & PTOPG&E Zero-Export Solar + Battery: Which Interconnection Path?
How to classify a PG&E zero-export solar and battery project before choosing a Rule 21 application, fee assumption or review timeline.
Permitting & PTOAdding a Battery to Existing SCE Solar: Permit, Interconnection and PTO Questions
What Southern California Edison customers should verify before adding battery storage to an existing solar system, including city permits, SCE interconnection changes and PTO.
Permitting & PTOCan This Project Use SolarAPP+? Battery, MPU, Existing PV and Ground-Mount Rules
A 2026 SolarAPP+ eligibility decision guide for projects with storage, main panel upgrades, existing solar, homeowner installation or ground-mounted PV.
PG&EPG&E Solar Billing Plan and Battery Storage: 2026 Guide
How PG&E's Solar Billing Plan values imports and exports, why battery dispatch matters, and how to evaluate a 2026 project without unsupported payback assumptions.
SDG&ESDG&E Solar Billing Plan and Battery Storage: 2026 Guide
How SDG&E's Solar Billing Plan values imports and exports, why battery timing matters, and how to evaluate a project using current interval data and tariffs.
Battery ComparisonsTesla Powerwall 3 vs. Enphase IQ Battery 5P: 2026 Specs and Design Guide
A sourced comparison of Powerwall 3 and IQ Battery 5P capacity, power, architecture, warranty, and the project details that determine installed value.
SCESCE Solar Billing Plan and Battery Storage: 2026 Guide
How Southern California Edison's Solar Billing Plan values imports and exports, why battery timing matters, and what to verify before estimating savings.
PG&EPG&E Rate Hike Audit 2026: Solar & Battery Protection Analysis
Analysis of Pacific Gas & Electric (PG&E) electricity rate increases and how home battery storage offsets E-ELEC peak pricing.
SDG&ESDG&E Battery Storage ROI Guide 2026: Rates & Economics
San Diego Gas & Electric (SDG&E) battery payback breakdown under NEM 3.0 rules and EV-TOU-5 rate schedules.
Battery EconomicsCalifornia NEM 3.0 Solar & Battery Payback Guide (2026 Audit)
Comprehensive guide to California Net Billing Tariff (NEM 3.0), avoided cost rates, TOU arbitrage, and battery ROI.
No guides match your search.
Popular California Permit Guides
Looking for city-specific permitting facts instead of rate analysis? See our verified California solar permit guides, sourced directly from each city's and utility's own official documentation.