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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
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| 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.
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2023
$1,361/kW
Est. Construction Cost
Total estimated cost: $544.4M
Forward revenue, DSCR bands, and refinancing risk projected under price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.
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Market Position
ISO/RTO Market
MISO
LMP Node
—
Pricing Hub
ILLINOIS.HUB
Node Source
Plant coordinates only
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-03-26
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