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400 MW Batteries (200 MW) + Solar Photovoltaic (200 MW) planned in Maries, MO
400 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
Planned: —
Planned Operation
Forward-looking, asset-specific exposure profile combining climate hazards, generation variability, and counterparty risk into a single decision-grade signal.
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Request a demo →| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Vesper Energy Development LLC | Vesper Energy | — |
| Owner(s) | Vesper Energy Development LLC | Vesper Energy | — |
| Status | Planned | announced | — |
GEM identifies the owner as Vesper Energy
This entity is not yet in the GEM ownership database — chain unavailable.
Vichy Solar is a 400 MW hybrid power plant located in Maries County, Missouri. The facility, owned and operated by Vesper Energy Development LLC, utilizes both solar photovoltaic technology and battery storage. It is the largest solar plant in Missouri and ranks among the top 100 largest solar plants nationally. The plant consists of two generators and employs a fixed-tilt solar tracking system.
The plant's primary fuel source is solar energy (MWH). Vichy Solar operates within the Midcontinent Independent Transmission System Operator (MISO) market and is under the balancing authority of the same entity. The plant resides within the SERC Reliability Corporation (SERC) NERC region. Recent news coverage indicates regulatory interest in the facility.
Generated from EIA, GEM, and public data sources
ISO/RTO
MISO
Market
ISO/RTO Member
NERC Region
SERC — SERC Reliability Corporation
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc.. (MISO)
Grid Voltage
345.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
No generation data available for this plant.
2023
$1,361/kW
Est. Construction Cost
Total estimated cost: $544.4M
Market Position
ISO/RTO Market
MISO
LMP Node
—
Pricing Hub
ILLINOIS.HUB
Node Source
Plant coordinates only
Last updated 2026-03-26
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