Sisters Storage
208.89 MW storage in Ector, TX · In queue since December 2019 · Proposed COD May 2027
208.89 MW
Capacity
1
Components
Battery
6y 5m
In Queue
Facility Study
IA Status
COD target: 2027
Total Duration
7y 5m
Interconnection request submitted to ISO/RTO
ERCOT uses a serial "connect and manage" approach — fastest among major ISOs.
Typical: 18–30 months (fastest major ISO)
Interconnection agreement not yet executed
Typical: 30–60 days (negotiation)
Proposed COD: 2027-05-31
Sisters Storage is a proposed 208.89 MW battery storage project in Ector County, Texas. Developed by 174 Power Global Properties, the project consists entirely of battery storage. It is currently active in the ERCOT interconnection queue as entry ERCOT-21INR0482, with a queue entry date of December 18, 2019, and a proposed commercial operation date of May 31, 2027. The project's interconnection status is currently in the Facility Study phase, and it is planned to interconnect by tapping the 345 kV line connecting Moss Switch to Wolf Switching Station.
The Sisters Storage project has been mentioned in recent news coverage related to the energy industry.
Generated from interconnection queue and public data sources
State
TX
County
Ector
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
174 Power Global Properties
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
tapping the 345 kV line connecting Moss Switch (Bus# 1018) to Wolf Switching Station (Bus# 11010)
Data Source
LBNL
- ISO / RTO
- ERCOT
- Trading Hub
- HB_NORTH
- Hub Confidence
- LOW
This project's market context is estimated from its Point of Interconnection. Hub and node assignments are approximate and based on geographic inference from the POI substation name.
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