Executive Summary

• U.S. battery energy storage capacity has grown from 1 GW in 2020 to 17 GW in 2024 and could reach nearly 150 GW by 2030.
• CAISO and ERCOT are projected to lead the buildout, each surpassing 40 GW by 2030, while PJM could expand from 400 MW to 30 GW.
• Only 28% of projects in ISO interconnection queues historically reach commercial operation, highlighting risks to total projected capacity.

Subscribers to Modo Energy’s Research will also find out:

• How interconnection queue reforms and FERC orders may accelerate battery project timelines.
• Why supply chain constraints, land availability, and revenue sufficiency could limit total U.S. battery buildout.
• How data center growth and electrification trends will drive demand for storage alongside solar and wind expansion.

To get full access to Modo Energy’s Research, book a call with a member of the team today.

Introduction

Battery energy storage systems have become the fastest-growing grid-scale energy technology in America, alongside solar generation.