- Combustion
- Wind & solar
- In development
- Under construction
- Retired
- 10 · 100 · 1,000 MW
Map
- Combustion
- Wind & solar
- In development
- Under construction
- Retired
Roll Delano: location and 6 exact-grade projects within 15 mi. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Roll Delano
Power plant · Gas, other
Key facts
Power plant · Gas, other Retired- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 2012
- Net generation, 2024
- 0 MWh
- Grid
- 0.5 kV to Pacific Gas & Electric Co (CISO)
- Location
- Kern County, California
- Operated by
- Bloom Energy
Output
- Gas
Details
Who’s behind it
- Owner
- Roll Global
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- Technology
- Gas, other source: “Other Natural Gas”
- Age
- 14 years since 2012
1 attribute from EIA-860M Preliminary Monthly Electric Generator Inventory
| Attribute | Value |
|---|---|
| Balancing authority code | CISO |
Retirement
EIA-860M September 2026StatusEvery generator EIA lists at this plant has retired. As of EIA-860M for September 2026.- Retired
- December 2023
- Capacity retired
- 1.2 MW
- Generators retired
- 1
| Generator | Technology | Nameplate | State | Date |
|---|---|---|---|---|
| ROL4 | Other Natural Gas | 1.2 MW | Retired | December 2023 |
Grid
EIA-860 2025Grid fieldsAs the plant reported them to EIA-860 for 2025 (Schedule 2).- Grid voltage at the plant
- 0 kV
- Transmission or distribution system owner
- Pacific Gas & Electric Co
- Balancing authority
- California Independent System Operator
- NERC region
- WECC
Transmission lines within 15 mi (10)
Connection points within 15 mi (1)
Can the connection be reused?
A plant that retires usually leaves its substation, transmission connection and interconnection agreement behind, and those may be reusable by a new project at the same site. FERC Order No. 845 lets an interconnection customer use surplus interconnection service at an existing site, and some transmission providers' tariffs let a replacement resource take over a retiring unit's interconnection service, usually within a set time after the retirement. Whether any such right still exists here, who holds it and on what terms depends on the owner, the transmission provider and timing; this page does not establish any of that.
Ownership
2 companies2| Company | Role | Share | As of | Source |
|---|---|---|---|---|
| Bloom Energy | Operator | EIA-860M | ||
| Roll Global | Owner | 100.0% | Dec 31, 2025 | EIA-860 |
Timeline
- Stated Unit ROL4 scheduled to retire, 1.2 MW · EIA-860M
- In service · EIA-860M
Sources
6 sourcesSources EIA-860M · LBNL · CAISO · EIA · EIA-860M Preliminary Monthly Electric Generator Inventory · EIA-860 Annual Electric Generator Report — Schedule 4 Owner (ownership shares per generator), plus Plant/Generator schedules
Sources
- EIA-860M
- LBNLYin, Nait Belaid & Heleno (2026), Lawrence Berkeley National Laboratory, OEDI, CC BY 4.0: A Harmonized Geospatial Dataset of U.S. Transmission Lines: Linking FERC Form 1 and HIFLD, 1994-2024. Modified by Inframation: HIFLD-side fields only, names re-cased, coordinates rounded.
- CAISOSource: California ISO
- EIASource: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)
- EIA-860M Preliminary Monthly Electric Generator Inventory
- EIA-860 Annual Electric Generator Report — Schedule 4 Owner (ownership shares per generator), plus Plant/Generator schedules
Around this plant
Nearby
within 15 mi| Project | Kind | Away | MW |
|---|---|---|---|
| Solar Photovoltaic Project #46 Postponed | Solar | 0.8 mi | 3.5 |
| Solar Photovoltaic Project #35 Postponed | Solar | 1.0 mi | 7 |
| Ranch 4701 Under construction | Solar | 8.8 mi | 2.3 |
| Ranch 4220 Under construction | Solar | 10.5 mi | 1.1 |
| Bakersfield Driver Under construction | Solar + storage | 12.0 mi | 2 |
| Rexford 2 Solar Farm Contracted | Solar + storage | 14.1 mi | 200 |