Callisto ID Energy Center — Project Summary

Queue ID
ERCOT-26INR0590
Capacity
100 MW
Technology
Battery
Status
active
Location
Harris, TX
Region
ERCOT
Developer
Tempus Power management LLC
IA Status
Facility Study

Callisto ID Energy Center

BetaActiveBatteryERCOTLBNL + Live

100 MW storage in Harris, TX · In queue since October 2024 · Proposed COD December 2026

100 MW

Capacity

1

Components

Battery

1y 5m

In Queue

Facility Study

IA Status

COD target: 2026

Interconnection Timeline

Total Duration

2y 2m

Facilities Study50%
Queue EntryOct 1, 2024

Interconnection request submitted to ISO/RTO

Interconnection StudyCurrent

ERCOT uses a serial "connect and manage" approach — fastest among major ISOs.

Typical: 18–30 months (fastest major ISO)

Interconnection Agreement

Interconnection agreement not yet executed

Typical: 30–60 days (negotiation)

Commercial Operation

Proposed COD: 2026-12-01

Project Details

State

TX

County

Harris

Region

ERCOT

Developer

Tempus Power management LLC

Utility

Entity

ERCOT

Point of Interconnection

47150 (H_O_C__B138) 138kV

Data Source

LBNL + Live

No news available for this project.