Winooski One is a 7.3 Mw hydroelectric generating station located in Chittenden County, Vermont, on the Winooski River as it flows between the cities of Burlington and Winooski.

The station is run-of-river and consists of a refurbished spillway with a rubber dam abutting a historic timber crib dam.   

A fish lift and riverside park have been constructed as part of the station.

The flow of the Winooski River is directed into a powerhouse with three identical double-regulated Kaplan turbines, which drive synchronous generators, allowing for highly efficient run-of-river operation.

The average annual net output of 30 million kWh is delivered for sale to Vermont's utilities through the Vermont Electric Power Producers, Inc.

Hydroelectric power provides clean electricity to Vermont, through the use of renewable energy.