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TOU Rate Structure

Solar ROI for Southern California Edison (SCE) Customers

Southern California Edison (SCE) charges an average of $28.0¢/kWh. Peak rates reach $42.0¢/kWh with off-peak at $11.0¢/kWh, creating strong battery arbitrage value. A 7 kW solar system produces a $41,163 NPV over 25 years.

$13,573
Net System Cost
$41,163
25-Year NPV
5 years
Payback Period
$0.125/kWh
Solar LCOE

Southern California Edison (SCE) Rate Structure

ParameterRate
Average residential rate$28.0¢/kWh
Peak rate$42.0¢/kWh
Off-peak rate$11.0¢/kWh
Peak/off-peak spread$31.0¢/kWh
Rate structureTOU
Export credit policyNEM 3.0 avoided cost ($0.04-0.07/kWh)

Solar System Economics

A 7 kW solar system for a Southern California Edison (SCE) customer costs $19,390 before incentives. The 30% federal ITC saves $5,817. The net out-of-pocket cost is $13,573.

At Southern California Edison (SCE)'s $28.0¢/kWh average rate, the system saves $3,136 in year one, producing 11,200 kWh. The solar LCOE of $0.125/kWh is 55% below Southern California Edison (SCE)'s current rate.

Battery Storage for Southern California Edison (SCE) Customers

$8,400
Battery Net Cost
$3
Daily Arbitrage
$1,031
Annual Arbitrage
$3,850
25-Year Battery NPV

With Southern California Edison (SCE)'s TOU rate structure, a 13.5 kWh battery generates $1,031/year in TOU arbitrage by storing solar during off-peak hours and discharging during peak. The 25-year NPV of $3,850 makes battery storage a strong addition to solar for Southern California Edison (SCE) customers.

FAQ: Solar for Southern California Edison (SCE) Customers

How much can Southern California Edison (SCE) customers save with solar?
A typical 7 kW solar system saves Southern California Edison (SCE) customers approximately $3,136/year in electricity costs. Over 25 years, the NPV of savings after system costs is $41,163.
What is Southern California Edison (SCE)'s rate structure?
Southern California Edison (SCE) uses a time-of-use (TOU) rate structure with peak rates of $42.0¢/kWh and off-peak rates of $11.0¢/kWh. The $31.0¢/kWh peak/off-peak spread creates significant value for battery storage — TOU arbitrage alone is worth $1,031/year.
Does Southern California Edison (SCE) offer net metering?
NEM 3.0 avoided cost ($0.04-0.07/kWh)
Should Southern California Edison (SCE) customers add battery storage?
Yes — for Southern California Edison (SCE) customers with TOU rates, a 13.5 kWh battery adds $3,850 in NPV through TOU arbitrage. Daily arbitrage value is $3.

Other Utilities in California

San Diego Gas & Electric (SDG&E)
$38.0¢/kWh · TOU
›
Pacific Gas & Electric (PG&E)
$32.0¢/kWh · TOU
›

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