250 MW Batteries (50 MW) + Solar Photovoltaic (200 MW) under construction in Clay, MS — Tennessee Valley Authority
250 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
—
Operating Since
Coordinates
33.6435, -88.5940
County
Clay, MS
Nearby Plants
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Origis Energy USA, Inc | Origis Energy | — |
| Owner(s) | Origis Energy USA, Inc | Origis Energy [100%] | — |
| Status | Under construction | pre-construction | — |
GEM identifies the owner as Origis Energy [100%]
This entity is not yet in the GEM ownership database — chain unavailable.
The Optimist power plant, located in Clay County, Mississippi, is a hybrid solar and battery energy storage facility with a total capacity of 250 MW. The plant is operated by Origis Energy USA, Inc. and utilizes both solar photovoltaic technology and battery storage. The primary fuel type is listed as MWH, reflecting the energy storage component. The solar component uses a fixed tilt tracking system.
The Optimist plant is interconnected to the Tennessee Valley Authority (TVA) balancing authority and operates within the SERC NERC region. It is ranked as the largest of three hybrid plants in Mississippi and 207th out of 514 such plants nationally. The plant consists of two generators.
Generated from EIA, GEM, and public data sources
NERC Region
SERC
Balancing Authority
Tennessee Valley Authority
Grid Voltage
161 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
No generation data available for this plant.
No financial data available for this plant.
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
Last updated 2026-03-14
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