← Energy and data-center projects
Seven Angels Energy Storage I
- County
- Hill
- Technology
- Battery storage
- Capacity
- 514 MW
- Interconnecting entity
- Seven Angels Infrastructure LLC
- Developer
- Polaris Infrastructure Development LLC, originated by Macro Grid Solutions LLC (both Denver)
- Point of interconnection
- 68090 Sam Switch Bus 345kV
- Status
- SS Completed, FIS Started, No IA
- Projected completion
- 31 December 2028
- Queue number
- 28INR0472
- Public recordGIS Report for August 2026, posted 1 September 2026, sheet “Project Details – Large Gen” ERCOT GIS Report (checked 14 September 2026)
- Public recordPolaris Infrastructure Development LLC, originated by Macro Grid Solutions LLC, both of Denver, from officer records Corporate record (checked 14 September 2026)
ERCOT's abbreviations: SS, the security screening study; FIS, the full interconnection study; IA, the interconnection agreement. How this page is sourced →
Queue data: ERCOT GIS Report, August 2026 (posted 1 September 2026, read 30 September 2026). ERCOT publishes it for planning only; its data comes from the project companies and may contain errors. Compiled by Blackland TX. Corrections: [email protected].