RE Tranquillity
9810 S Ohio Avenue, Cantua Creek, CA 93608Plant Summary Information
RE Tranquillity is ranked #33 out of 886 solar farms in California in terms of total annual net electricity generation.
RE Tranquillity generated 63.7 GWh during the 3-month period between September 2025 to December 2025.
| Plant Name | RE Tranquillity |
|---|---|
| Utility Name | Southern Power Co |
| Location | Fresno County, CA |
| Initial Operation Date | July 2016 |
| Last Update | Dec 2025 |
| Annual Generation | 484.8 GWh |
| Annual Consumption | 1.8 M MMBtu |
| Ranked #1,392 out of 13,094 Power Plants Nationwide | |
| Ranked #124 out of 7,027 Solar Power Plants Nationwide | |
| Ranked #84 out of 1,607 California Power Plants | |
| Ranked #33 out of 886 California Solar Power Plants | |
| Fuel Types | Solar |
| Previous Operator |
RE Tranquillity LLC (2014 to 2014) Southern Power Co (2015 to 2025) |
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Monthly Net Generation for RE Tranquillity
Monthly Plant Fuel Consumption for RE Tranquillity
RE Tranquillity Details
| Summary Information | |
|---|---|
| Plant Name | RE Tranquillity (59939) |
| Plant Address | 9810 S Ohio Avenue, Cantua Creek, CA 93608 |
| Utility | Southern Power Co (17650) |
| Latitude, Longitude | 36.58137, -120.40447 |
| Generation Dates on File | Jul 2016 to Dec 2025 |
| Initial Operation Date | July 2016 |
| Annual Generation | 484.8 GWh |
| Fuel Types | Solar |
| Federal Energy Regulatory Commission (FERC) Information | |
| FERC Cogeneration Status | No |
| FERC Small Power Producer Status | No |
| FERC Exempt Wholesale Generator Status | Yes |
| FERC Exempt Wholesale Generator Docket Number | EG15-42-000 |
| Regulatory Information | |
|---|---|
| Regulatory Status | Non-Regulated |
| NERC Region | WECC |
| Balancing Authority | California Independent System Operator (CISO) |
| NAICS Code | Utilities (22) |
| Sector | IPP Non-CHP (2) |
| Water Source | |
| Ash Impoundment | No |
| Transmission / Distribution Owner | Pacific Gas & Electric Co (14328) CA |
| Grid Voltage | 230.00 kV |
| Energy Storage | Yes |
Generator TQ Details Operating July 2016
| Technology | Solar Photovoltaic |
|---|---|
| Prime Mover | Photovoltaic |
| Ownership | Wholly Owned by Other Entity |
| Nameplate Capacity | 205.3 MW |
| Summer Capacity | 200 MW |
| Winter Capacity | 200 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | July 2016 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| Energy Source | Solar |
| Multiple Fuels | No |
| Solar Details | |
| Single Axis Tracking | Yes |
|---|---|
| Azimuth Angle | 90 |
| DC Net Capacity | 257.7 MW |
| Crystalline Silicon | Yes |
| Net Metering Agreement | No |
| Virtual Net Metering Agreement | No |
Generator BESS1 Details Operating November 2021
| Technology | Batteries |
|---|---|
| Prime Mover | Battery |
| Ownership | Wholly Owned by Other Entity |
| Nameplate Capacity | 37 MW |
| Summer Capacity | 37 MW |
| Winter Capacity | 37 MW |
| Minimum Load | 0.1 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | November 2021 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| Energy Source | Electricity used for energy storage |
| Time From Cold Shutdown To Full Load | 10M |
| Energy Storage Details | |
| Nameplate Energy Capacity MWH | 128 |
|---|---|
| Maximum Charge Rate | 32 MW |
| Maximum Discharge Rate | 32 MW |
| Storage Technology | LIB |
| Nameplate Reactive Power Rating | 10.5 |
| Storage Enclosure Type | CS |
| Frequency Regulation | Yes |
| Ramping Spinning Reserve | Yes |
| Load Management | Yes |
| Voltage Or Reactive Power Support | P |
| Excess Wind And Solar Generation | Yes |
| DC Coupled | Yes |
| Direct Support Of Another Unit | Yes |
| Direct Support Plant Id | 59939 |
| Direct Support Gen Id | TQ |
| Support T D Asset | No |
Generator BESS2 Details Operating March 2022
| Technology | Batteries |
|---|---|
| Prime Mover | Battery |
| Ownership | Wholly Owned by Other Entity |
| Nameplate Capacity | 35 MW |
| Summer Capacity | 35 MW |
| Winter Capacity | 35 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | March 2022 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| Energy Source | Electricity used for energy storage |
| Time From Cold Shutdown To Full Load | 10M |
| Energy Storage Details | |
| Nameplate Energy Capacity MWH | 160 |
|---|---|
| Maximum Charge Rate | 35 MW |
| Maximum Discharge Rate | 35 MW |
| Storage Technology | LIB |
| Nameplate Reactive Power Rating | 13.2 |
| Storage Enclosure Type | CS |
| Frequency Regulation | Yes |
| Ramping Spinning Reserve | Yes |
| Load Management | Yes |
| Voltage Or Reactive Power Support | P |
| Excess Wind And Solar Generation | Yes |
| DC Coupled | Yes |
| Direct Support Of Another Unit | No |
| Direct Support Plant Id | 59939 |
| Direct Support Gen Id | TQ |
| Support T D Asset | No |
RE Tranquillity Plant Owners
| Owner Name | Address | Generator | Ownership |
|---|---|---|---|
| SP Tranquillity Solar Storage, LLC | 30 Ivan Allen Jr. Blvd, NW, Atlanta, GA 30308 | Generator BESS1 | 100.00% |
| SP Tranquillity Solar Storage, LLC | 30 Ivan Allen Jr. Blvd, NW, Atlanta, GA 30308 | Generator BESS2 | 100.00% |
| RE Tranquillity LLC | 30 Ivan Allen Jr. Blvd, NW, Atlanta, GA 30308 | Generator TQ | 100.00% |
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| #114 | Maple Flats | Louisville, IL | 513.6 GWh |
| #115 | Taygete Energy Project LLC | Coyanosa, TX | 512.8 GWh |
| #116 | Yellowbud Solar, LLC | Williamsport, OH | 511.6 GWh |
| #117 | 7V Solar Ranch | Muldoon, TX | 509.5 GWh |
| #118 | Sparta Solar | Pawnee, TX | 508.5 GWh |
| #119 | Phoebe Solar | Kermit, TX | 507.5 GWh |
| #120 | Daggett 2 | Daggett, CA | 493.8 GWh |
| #121 | Matrix Pleasant Valley | Boise, ID | 498.4 GWh |
| #122 | Fighting Jays Solar Project | Needville, TX | 498.3 GWh |
| #123 | Cool Springs Solar (Hybrid) | Bainbridge, GA | 495.3 GWh |
| #125 | Long Lake Solar, LLC | West Helena, AR | 493.9 GWh |
| #126 | Porter Solar, LLC (TX) | Krum, TX | 493.8 GWh |
| #127 | ANSON Solar Center, LLC | Anson, TX | 493.6 GWh |
| #128 | Delilah Solar Energy LLC | Bogota, TX | 493.6 GWh |
| #129 | Bernard Creek Solar | Hungerford, TX | 492.5 GWh |
| #130 | Azure Sky Solar | Haskell, TX | 484.9 GWh |
| #131 | Scarlet Solar (CA) | Fresno, CA | 483.8 GWh |
| #132 | Noble Solar | Krum, TX | 487.1 GWh |
| #133 | Great Valley Solar Portfolio Holdings, L | Cantua Creek, CA | 490.0 GWh |
| #134 | Proxima | Crows Landing, CA | 467.5 GWh |
Nearby Power Plants
Below are closest 20 power plants surrounding RE Tranquillity.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| Aspiration G | Cantua Creek, CA | 21.1 GWh | 3.5 mi |
| CalPeak Power Panoche Peaker Plant | Firebaugh, CA | 1.9 GWh | 10.9 mi |
| Citizen B | Mendota, CA | 8.6 GWh | 10 mi |
| Conflitti Solar | Firebaugh, CA | 100.0 MWh | 9.8 mi |
| Giffen | TBD, CA | 11.6 GWh | 6 mi |
| Giffen Solar Park | Cantua Creek, CA | 19.6 GWh | 5.5 mi |
| Great Valley Solar Portfolio Holdings, L | Cantua Creek, CA | 490.0 GWh | 1.4 mi |
| Little Bear 3 | Mendota, CA | 20.0 GWh | 9.3 mi |
| Little Bear 4 | Mendota, CA | 39.2 GWh | 9.3 mi |
| Little Bear 5 | Mendota, CA | 106.6 GWh | 9.3 mi |
| Little Bear Solar 1, LLC | Mendota, CA | 67.7 GWh | 9.3 mi |
| Luna Valley | Mendota, CA | 314.9 GWh | 0.8 mi |
| Midway Peaking LLC | Firebaugh, CA | 6.5 GWh | 10.9 mi |
| North Star Solar | Mendota, CA | 133.2 GWh | 10.3 mi |
| RE Adams East, LLC | Fresno, CA | 40.7 GWh | 6.8 mi |
| Scarlet II Hybrid | Cantua Creek, CA | 383.2 GWh | 2.2 mi |
| Scarlet Solar (CA) | Fresno, CA | 483.8 GWh | 2.6 mi |
| Superior Almond Hulling | Cantua Creek, CA | 472.0 MWh | 9.7 mi |
| Tranquillity ID | Tranquillity, CA | 2.5 GWh | 9.9 mi |
| Wellhead Power Panoche | Firebaugh, CA | 6.8 GWh | 10.9 mi |