Briefing on Sullivan (IL)

Sullivan (IL) is a 24 MW DFO plant in Illinois, primarily serving as a standby asset with extremely low utilization and minimal recent generation, despite its long operational history.

Overview

• Sullivan (IL) is a 24 MW DFO plant in Illinois, operating since 1948.

• The plant is currently in Standby status.

• It is owned and operated by the City of Sullivan - (IL).

• The plant is located within the MISO (Midcontinent) ISO, SERC NERC region, and Midcontinent Independent Transmission System Operator, Inc. Balancing Authority.

Fleet Details

• The plant consists of 11 generators utilizing Petroleum Liquids technology.

• Its capacity factor is extremely low at 0.1%, with 0 GWh annual generation.

• Recent monthly generation (2025-10, 2025-11, 2025-12) was 0 GWh for each month.

• Despite recent zero generation, the generation trend shows an increase of 29% over the past 6 months compared to the prior 6 months, indicating some intermittent activity or data anomaly.

Financial Profile

• The reported Capital Expenditure (CapEx) for the plant is $765/kW, sourced from eia_agg_cost.

Sullivan (IL) is an aging, low-utilization DFO plant with minimal recent generation, suggesting it serves primarily as a standby or emergency resource for the City of Sullivan, despite a notable recent trend increase from zero generation.