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FLAT Rate Structure

Solar ROI for Oncor / ERCOT Retail Providers Customers

Oncor / ERCOT Retail Providers charges an average of $13.8¢/kWh. A 7 kW solar system produces a $10,835 NPV over 25 years.

$12,740
Net System Cost
$10,835
25-Year NPV
9 years
Payback Period
$0.126/kWh
Solar LCOE

Oncor / ERCOT Retail Providers Rate Structure

ParameterRate
Average residential rate$13.8¢/kWh
Rate structureFLAT
Export credit policyVaries by retail electricity provider — most offer $0.06-0.10/kWh buyback

Solar System Economics

A 7 kW solar system for a Oncor / ERCOT Retail Providers customer costs $18,200 before incentives. The 30% federal ITC saves $5,460. The net out-of-pocket cost is $12,740.

At Oncor / ERCOT Retail Providers's $13.8¢/kWh average rate, the system saves $1,449 in year one, producing 10,500 kWh. The solar LCOE of $0.126/kWh is 9% below Oncor / ERCOT Retail Providers's current rate.

Battery Storage for Oncor / ERCOT Retail Providers Customers

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

Oncor / ERCOT Retail Providers 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 Oncor / ERCOT Retail Providers Customers

How much can Oncor / ERCOT Retail Providers customers save with solar?
A typical 7 kW solar system saves Oncor / ERCOT Retail Providers customers approximately $1,449/year in electricity costs. Over 25 years, the NPV of savings after system costs is $10,835.
What is Oncor / ERCOT Retail Providers's rate structure?
Oncor / ERCOT Retail Providers uses a flat rate structure at an average of $13.8¢/kWh. Without a large peak/off-peak spread, battery storage value comes primarily from backup power and net metering optimization.
Does Oncor / ERCOT Retail Providers offer net metering?
Varies by retail electricity provider — most offer $0.06-0.10/kWh buyback
Should Oncor / ERCOT Retail Providers customers add battery storage?
Battery storage for Oncor / ERCOT Retail Providers 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 Texas

CPS Energy San Antonio
$12.2¢/kWh · FLAT
›
Austin Energy
$11.8¢/kWh · TOU
›

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