194th largest plant in Illinois · 8066th nationally
Nalco is a natural gas power plant in Illinois with a nameplate capacity of 4.7 MW. It generates roughly 16.7k MWh per year — enough to power about 1,591 average U.S. homes.
Its capacity factor of 41% puts it in the middle range — running steadily but not full-time. At 649 lb CO₂/MWh, its emission rate sits below the national grid average of roughly 800 lb/MWh.
Ghost bars are each month's theoretical maximum (4.7 MW nameplate × hours in the month). Filled bars are actual net generation reported to EIA Form 923. The gap between them is capacity factor made visible.
| Plant Name | Nalco |
|---|---|
| Operator | Nalco Co |
| City | Naperville |
| County | Dupage County |
| State | Illinois |
| ZIP | 60563 |
| Coordinates | 41.80091, -88.19716 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| AT1 | Natural Gas Fired Combined Cycle | Natural Gas | 4.0 MW | Operating | 1985 |
| DPOX | Natural Gas Fired Combined Cycle | Natural Gas | 0.7 MW | Out of Service | 1985 |
| Owner | Location | Share |
|---|---|---|
| Naperville Trust | Naperville, IL | 10000.0% |
Ownership reported to EIA Form 860. Percentages reflect reported generator-level ownership share, averaged when a plant has multiple generators.
| CO₂ | 5.4k metric tons |
|---|---|
| NOₓ | 15 metric tons |
| CO₂ Rate | 649 lb/MWh |
Annual totals and CO₂ rate reported by EPA eGRID for 2023. Reference averages are approximate U.S.-wide figures from the same dataset.
| NERC Region | RFC |
|---|---|
| Balancing Authority | Pjm Interconnection, Llc |
Natural gas plants are the workhorse of the modern grid. Combined-cycle units achieve very high efficiency and can ramp up and down quickly to balance variable renewables. They emit roughly half the CO₂ per MWh of coal and far less of other pollutants, but they still release upstream methane during fuel extraction.