Alcona P-2447

General information
Waterway	Au Sable River
Current status	Active
Type of facility	Conventional Hydro
Mode of hydropower generation	Run-of-river
Type of permit	FERC License
FERC information
FERC docket #	P-2447
FERC project name	Alcona
Permit issued	7/10/94
Permit expiration	6/26/34
Ownership and operation
Owner	Consumers Energy Co
Owner type	Investor-Owned Utility
Year first online (conventional hydro)	1924
Transmission or distribution system owner	ITC Transmission
Power and generating capacity
Number of units	2
Total capacity from hydraulic turbine-generator units within each plant	8.0 mW
Average annual net hydropower generation	27,098.3 mWH

Dam containing two existing earth fill embankment sections, a concrete core wall, and a steel sheet pile cutoff wall
A 250-foot-long emergency spillway
An existing impoundment with an area of 1,470 acre-feet
A 135-foot-long tailrace
A concrete and masonry powerhouse containing two generating units
Transmission facilities, including a powerhouse step-up substation and a 400-foot-long, 138-kilovolt transmission line, and appurtenant facilities
The project has an average annual energy production of 26,038 MWh, based on a ten-year period of record from 1980 through 1989.

For a detailed description of this project and 10 others included in the Consumers Settlement Agreement, read this summary.