COVID-19 Update: We do not anticipate an impact to our energy services and have implemented guidelines to keep customers & employees safe.

COVID-19 Update: We do not anticipate an impact to our energy services and have implemented guidelines to keep customers & employees safe.

COVID-19 Update: We do not anticipate an impact to our energy services and have implemented guidelines to keep customers & employees safe.

COVID-19 Update: We do not anticipate an impact to our energy services and have implemented guidelines to keep customers & employees safe.

We're currently experiencing technical difficulties with our Payment Balance Reporting both online and through our call center. Please check online again later tonight to see your correct payment balance.

We're currently experiencing technical difficulties with our Payment Balance Reporting both online and through our call center. Please check online again later tonight to see your correct payment balance.

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As of: 11:21 PM, 9/20/20 learn more

Hydroelectric

  • Alcona Hydro has a capacity of 8,000 kilowatts. It began commercial operation in 1924.
  • Allegan Hydro has a capacity of 2,550 kilowatts. It was built by the city of Allegan and began commercial operation in 1936.
  • Five Channels Hydro has a capacity of 6,000 kilowatts. It was completed in 1912.
  • Foote Hydro has a capacity of 9,000 kilowatts. It was completed in 1918 and is named after our founder. You’ll find the dam nine miles upstream from Lake Huron.
  • Loud Hydro has a capacity of 4,000 kilowatts. It was completed in 1913.
  • Mio Hydro has a capacity of 4,900 kilowatts. It was built between 1914-16 and is our furthest upstream (west) hydro on the Au Sable River.
  • Webber Hydro has a capacity of 3,225 kilowatts. It began commercial operation in 1907.

Hydro Construction Project Updates

Hardy Pond Drawdown Schedule Change

This year’s annual winter drawdown for Hardy Pond will begin Nov. 1, 2020 instead of January 2021 in preparation for a future auxiliary spillway project. The restoration to normal operating water levels will be by May 28, 2021 (Friday prior to Memorial Day weekend). This schedule change was selected to minimize the impact on recreational activities such as boating and fishing. The future auxiliary spillway project is in the design and engineering phase. Construction dates will be shared when finalized. For additional information, please email us at hydro@cmsenergy.com

The Energy Source That is Pure Michigan

Some of our greatest assets are the oldest. That’s certainly true of the 13 hydroelectric plants that we operate along five rivers that run through our state. Built between 1906 and 1935, our heritage is rooted in these renewable energy sources. Hydropower is one of Michigan’s most important homegrown energy sources. It produces clean, reliable power that we’ve been able to count on for more than a century.

Want to learn more about hydro dams?