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FLAT Rate Structure

Solar ROI for Puget Sound Energy (PSE) Customers

Puget Sound Energy (PSE) charges an average of $11.8¢/kWh. A 7 kW solar system produces a -$644 NPV over 25 years.

$13,965
Net System Cost
-$644
25-Year NPV
16 years
Payback Period
$0.187/kWh
Solar LCOE

Puget Sound Energy (PSE) Rate Structure

ParameterRate
Average residential rate$11.8¢/kWh
Rate structureFLAT
Export credit policy1:1 net metering at retail rate

Solar System Economics

A 7 kW solar system for a Puget Sound Energy (PSE) customer costs $19,950 before incentives. The 30% federal ITC saves $5,985. The net out-of-pocket cost is $13,965.

At Puget Sound Energy (PSE)'s $11.8¢/kWh average rate, the system saves $909 in year one, producing 7,700 kWh. The solar LCOE of $0.187/kWh is -58% below Puget Sound Energy (PSE)'s current rate.

Battery Storage for Puget Sound Energy (PSE) Customers

$8,400
Battery Net Cost
$0
Daily Arbitrage
$0
Annual Arbitrage
-$11,382
25-Year Battery NPV

Puget Sound Energy (PSE) uses a flat rate structure without significant peak/off-peak spread. Battery value comes primarily from backup power and net metering optimization rather than TOU arbitrage.

FAQ: Solar for Puget Sound Energy (PSE) Customers

How much can Puget Sound Energy (PSE) customers save with solar?
A typical 7 kW solar system saves Puget Sound Energy (PSE) customers approximately $909/year in electricity costs. Over 25 years, the NPV of savings after system costs is -$644.
What is Puget Sound Energy (PSE)'s rate structure?
Puget Sound Energy (PSE) uses a flat rate structure at an average of $11.8¢/kWh. Without a large peak/off-peak spread, battery storage value comes primarily from backup power and net metering optimization.
Does Puget Sound Energy (PSE) offer net metering?
1:1 net metering at retail rate
Should Puget Sound Energy (PSE) customers add battery storage?
Battery storage for Puget Sound Energy (PSE) customers has a 25-year NPV of -$11,382. The economics are marginal based on TOU savings alone, but backup power value and future grid services programs may change the equation.

Other Utilities in Washington

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$9.8¢/kWh · TIERED
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