Rocky Mountain Power (Utah) Schedule 137 Export Credit Rate Analysis
Utah’s Rocky Mountain Power closed Schedule 135 (1:1) and Schedule 136, moving all new solar customers onto Schedule 137 where exported solar earns only 4.7¢–5.9¢/kWh while tiered retail imports reach 14.5¢/kWh.
1. 24-Hour Import Cost vs. Export Credit Visualizer
Schedule: Utah Schedule 137 (Net Billing Service — Post-Schedule 136)Compare what Rocky Mountain Power (PacifiCorp) charges you to import 1 kWh vs. what they pay you when you export 1 kWh during each time window—and how your battery inverter should be programmed:
2. Forensic Tariff & Battery Arbitrage Math
- 1Schedule 137 Export Haircut: Exporting 1 kWh to Rocky Mountain Power at 1:00 PM earns 5.84¢ (Summer) or 4.69¢ (Winter), while buying 1 kWh back at 7:00 PM in Tier 2/3 costs ~13.8¢ to 14.8¢—a 60% haircut on every exported kWh.
- 2Rocky Mountain Power Wattsmart Battery Incentive: RMP pays Utah homeowners an upfront cash rebate of $400 to $600 per kW of enrolled battery storage (up to $3,000+) plus ongoing annual incentives for enrolling UL9540 batteries in the Wattsmart grid program.
EG4 18kPV + 14.3kWh PowerPro or EcoFlow Delta Pro Ultra
Estimated Payback under Utah Schedule 137 (Net Billing Service — Post-Schedule 136): 6.4 – 7.5 Years
Rocky Mountain Power (PacifiCorp) Solar Tariff FAQ
Do my Schedule 137 export credits expire each year in Utah?
Yes. Unused Schedule 137 export credits roll over monthly from April through March and expire at the end of the March billing period (transferred to RMP’s low-income assistance fund).
Should I oversize my solar panels in Utah without a battery?
No. Because exports only earn ~5.3¢/kWh average, oversizing solar without a battery has a 14+ year payback on the exported portion. Size the panels for daytime loads and add a 14.3 kWh LFP battery to capture evening usage.