Size your whole-home generator or LFP battery backup in California based on historical CAISO / PG&E / SCE / SDG&E outage rates (12.8 hrs/yr) and local fuel rates.
Grid Authority: CAISO / PG&E / SCE / SDG&E · Avg. Annual Outages: 12.8 hrs/yr
Public Safety Power Shutoffs (PSPS) during high-wind red flag warnings, transformer heat-stress overloads.
Includes automatic transfer switch (ATS), subpanel interlock, and certified utility permit inspection.
Reliability Data Source: CPUC Wildfire Mitigation Plans (WMP) & EIA Form 861 Reliability Metrics
California residents face compounding costs: PSPS power shutoffs lasting 24 to 72 hours coupled with tier-3 residential electricity prices reaching $0.62/kWh on-peak.
A Public Safety Power Shutoff (PSPS) occurs when utilities like PG&E or SCE proactively de-energize high-voltage power lines during extreme wind and fire-weather conditions to prevent utility equipment from igniting wildfires.
Due to strict California Air Resources Board (CARB) emissions rules and high natural gas prices, an AC-coupled LFP solar battery system (13.5kWh to 27kWh) is generally preferred over gas generators for urban and suburban residences.
View national outage duration indexes and whole-home generator payback.