Solar ROI for San Diego Gas & Electric (SDG&E) Customers
San Diego Gas & Electric (SDG&E) charges an average of $38.0¢/kWh. Peak rates reach $58.0¢/kWh with off-peak at $14.0¢/kWh, creating strong battery arbitrage value. A 7 kW solar system produces a $61,952 NPV over 25 years.
San Diego Gas & Electric (SDG&E) Rate Structure
| Parameter | Rate |
|---|---|
| Average residential rate | $38.0¢/kWh |
| Peak rate | $58.0¢/kWh |
| Off-peak rate | $14.0¢/kWh |
| Peak/off-peak spread | $44.0¢/kWh |
| Rate structure | TOU |
| Export credit policy | NEM 3.0 avoided cost ($0.05-0.09/kWh) |
Solar System Economics
A 7 kW solar system for a San Diego Gas & Electric (SDG&E) customer costs $19,390 before incentives. The 30% federal ITC saves $5,817. The net out-of-pocket cost is $13,573.
At San Diego Gas & Electric (SDG&E)'s $38.0¢/kWh average rate, the system saves $4,256 in year one, producing 11,200 kWh. The solar LCOE of $0.125/kWh is 67% below San Diego Gas & Electric (SDG&E)'s current rate.
Battery Storage for San Diego Gas & Electric (SDG&E) Customers
With San Diego Gas & Electric (SDG&E)'s TOU rate structure, a 13.5 kWh battery generates $1,463/year in TOU arbitrage by storing solar during off-peak hours and discharging during peak. The 25-year NPV of $10,238 makes battery storage a strong addition to solar for San Diego Gas & Electric (SDG&E) customers.
FAQ: Solar for San Diego Gas & Electric (SDG&E) Customers
How much can San Diego Gas & Electric (SDG&E) customers save with solar?
What is San Diego Gas & Electric (SDG&E)'s rate structure?
Does San Diego Gas & Electric (SDG&E) offer net metering?
Should San Diego Gas & Electric (SDG&E) customers add battery storage?
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