Three new ERCOT battery storage sites became commercially operational in August 2024, adding 487 MW of rated power.
The Houston Load Zone saw its first 100+ MW battery, marking a shift toward a more geographically diverse buildout.
ERCOT remains on track to reach 14-18 GW of installed battery capacity by the end of 2025, with Houston projected to add over 4 GW.

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

How the South Load Zone has overtaken West Texas in battery buildout growth.
Why several large projects may face delays despite having interconnection agreements.
What trends in ERCOT’s storage deployment signal for long-term investment and market participation.

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

Watch the video for a flavor of the full report.

Introduction

In August, three new battery energy storage systems became commercially operational in ERCOT. Together, they bring the total installed energy capacity to around 9 GWh. Total installed rated power is now just under 6 GW.

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August ERCOT battery buildout report: how much capacity was added?

August ERCOT battery buildout report: how much capacity was added?

Executive Summary

Introduction

Q1 2026 Australia Workshops: Five key takeaways for BESS

Constraints in Great Britain: Scottish wind curtailment and what it means for BESS

Italy's Capacity Market: Terna’s Proposal Shifts Advantage from Batteries to Gas

​February 2026 NEM battery revenues fell to $54k/MW/year, the lowest level in two years

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February 2026 NEM battery revenues fell to $54k/MW/year, the lowest level in two years