El Cajon is East County San Diego — excellent sun resource, SDG&E rates, and significant homeowning population across all income levels. The 30% ITC combined with SDG&E's extremely high rates produces some of the best solar economics in California. Battery + solar under NEM 3.0 maximizes value. CA property tax exclusion prevents assessed value increases.
El Cajon is East County San Diego — excellent sun resource, SDG&E rates, and significant homeowning population across all income levels. The 30% ITC combined with SDG&E's extremely high rates produces some of the best solar economics in California. Battery + solar under NEM 3.0 maximizes value. CA property tax exclusion prevents assessed value increases.
Utility: SDG&E. Avg bill: $160–$255/month. San Diego County — 30% federal ITC + CA property tax exclusion (Rev. & Tax § 73) + SGIP battery incentive + NEM 3.0 net billing.
Under NEM 3.0 (for new installations after April 2023), exported solar earns ~$0.02–$0.08/kWh. Battery storage is essential — store production, use it at night during peak rate hours, maximize self-consumption.
SGIP provides per-kWh incentives for battery storage through SDG&E. Up to $1,000/kWh for qualifying low-income or high fire risk customers. Your installer applies on your behalf.