# Who does Ameren Corporation pay? Who are its key suppliers?
Canonical: https://valuechain.wiki/ameren · Facet: suppliers · Updated: 2026-09-24T03:12:46.37434+00:00 · Source: ValueChain.wiki (cited money-flow graph)

**Citable summary**: Ameren Corporation's confirmed suppliers/cost counterparties include GE Vernova plus 1 undisclosed/aggregate relationship. Per the valuechain.wiki graph: 2 cost edges, backed by 3 dated sources, 3 of them primary filings (as of 2026-09-24).

### Invenergy Renewables (high)
- metric: Amount $600M · February 2026 acquisition · Acquisition price for the Split Rail Solar Project
- note: Ameren Missouri acquired the 300 MW Split Rail Solar Project developed by Invenergy for approximately $600 million in February 2026. The asset entered service in June 2026.
- [confirms] SEC EDGAR (EN, filing, published 2026-08-03) https://www.sec.gov/Archives/edgar/data/1002910/000100291026000023/aee-20260630.htm: "In February 2026, Ameren Missouri acquired the Split Rail Solar Project for approximately $0.6 billion and placed it in-service in June 2026."
- [confirms] Ameren Missouri (EN, ir, published 2023-06-20) https://ameren.mediaroom.com/2023-06-20-Ameren-Missouri-plans-new-solar-generation-capable-of-powering-more-than-95,000-homes: "Split Rail Solar, a 300-MW project based in Warren County, Missouri, with a targeted in-service date of 2026 to be acquired by Ameren Missouri from Invenergy."

### Midcontinent Independent System Operator (MISO) (high)
- metric: Amount $69M · FY2025 · Increase in Ameren Illinois purchased-power expense caused by higher 2025 MISO summer capacity prices
- note: Ameren Missouri and Ameren Illinois procure power and capacity through MISO for customer supply. The 2025 summer capacity-price increase added $69 million to Ameren Illinois purchased-power expense.
- [confirms] SEC EDGAR (EN, filing, published 2026-02-18) https://www.sec.gov/Archives/edgar/data/1002910/000100291026000009/aee-20251231.htm: "Ameren Illinois Electric Distribution's purchased power expenses increased $201 million, or 27%, in 2025, compared with 2024, primarily due to summer capacity prices increasing from $30 per MW-day in 2024 to $667 per MW-day in 2025 pursuant to the April 2025 annual MISO capacity auction (+$69 million)."
- [confirms] Missouri Public Service Commission (EN, filing, published 2025-08-29) https://www.efis.psc.mo.gov/Document/Display/847311: "Ameren Missouri must purchase back from MISO the energy needed to serve its native load. Staff identified no evidence that Ameren Missouri acted imprudently with regard to purchases of short-term energy in the MISO and PJM day-ahead markets."

### GE Vernova (high)  → /ge-vernova.md
- metric: Count 4 combustion_turbine_generators · contracted for 2028 in-service · GE combustion turbine generators contracted for the Big Hollow Energy Center
- note: Ameren Missouri contracted for four GE 7FA.04 combustion turbine generators for the Big Hollow Energy Center. A preliminary purchase order in 2024 and final notice to proceed in 2025 secured the production slots.
- [confirms] Missouri Public Service Commission (EN, filing, published 2025-06-26) https://efis.psc.mo.gov/Document/Display/837660: "The four combustion turbine generators planned for the CTG Project are already under contract with GE. Contracts were executed in 2024 to secure production and delivery of the units in time for the planned in-service date."

Reverse side: https://valuechain.wiki/ameren/customers.md · Ripple: https://valuechain.wiki/ameren/ripple.md

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Full node: https://valuechain.wiki/ameren.md · JSON: https://valuechain.wiki/ameren.json