4-hour batteries in SPP South are projected to earn $188/kW-year in 2027, driven by tight capacity reserve margins and unsaturated Regulation products.

Revenues fall to $120/kW-year by 2030 as these streams stabilize, plateauing at $66/kW-year through to 2050.

But what market fundamentals are driving this revenue?

Modo Energy's SPP BESS Revenue forecast is live

Users can run two forecasts for free in the Forecast Library.

Read the SPP methodology to learn more about the forecast, or book a demo to walk through your results with our modeling team.

Executive Summary

In the next decade, SPP anticipates 20 GW of load growth from oil and gas electrification in the Permian Basin and an influx of AI-compute data centers. Retiring coal generators remove 7 GW during the same period.

The RTO is projecting potential loss of load events if transmission upgrades and buildout cannot keep pace with new load applications.

The most economical way for SPP to meet this rise in demand is through a combination of wind, natural gas, and, for the first time, solar and batteries.

Projection indicate SPP will add 37 GW of solar and 26 GW of wind by 2035. Battery projects are moving in waves through the streamlined Surplus and CPP connection queues to firm this capacity.

By 2030, battery storage could stand at 19 GW, from less than 1 GW today

Read on to understand what’s driving battery revenues in the latest release of Modo Energy’s SPP BESS Revenue Forecast.

​​Navigate to the sections below

• Load Growth
• Buildout and retirements
• Generation mix
• Price spreads and ATCs
• Resource Adequacy capacity prices
• Ancillary Service saturation
• Revenue projections

SPP peak load rises to 102 GW by 2050

SPP’s 2026 Integrated Transmission Plan forecasts summer peak load rising from a historical high of 56 GW to 91 GW by 2035 under its Future 1 scenario.

Projecting this forward, summer peak load should grow to 102 GW by 2050. Winter remains more muted, with the peak rising from 51 GW to 80 GW by 2050.