LUDINGTON, Mich. — Work to build the Ludington Pumped Storage plant started 50 years ago this June. However, a license allowing Consumers Energy and DTE to operate the facility expires on June 30.
The unique hydroelectric plant, at one time, was the largest of its kind in the world. It’s now the fourth largest.
Some drivers rushing past the massive berm on the west side of US-31, just south of Ludington likely don’t know it’s a man-made reservoir capable of holding up to 27-billion gallons of Lake Michigan.In 1959, Consumers Energy and Detroit Edison began designing the hydroelectric plant. Construction started a decade later and the plant began commercial operation in 1973.
“This is unique site. It’s different; there aren’t a lot of them around,” Zatloukal said.
When power costs are low, billions of gallons of Lake Michigan are pumped uphill into the reservoir. The water is stored there until power is a higher cost. It’s then the water is released and allowed to travel downhill, spinning six turbines to create electricity.

Meanwhile, what’s happened since I made this video, new studies show many, many more opportunities for pumped storage than previously imagined, around the world.
We just got some massive news in the ongoing drive to switch to renewable energy: scientists have identified 530,000 sites worldwide suitable for pumped-hydro energy storage, capable of storing more than enough energy to power the entire planet.
Pumped-hydro is one of the best technologies we have for storing intermittent renewable energy, such as solar power, which means these sites could act as giant batteries, helping to support cheap, fully renewable power grids.
Continue reading “Giant Battery on Lake Michigan, and it’s Not from Elon Musk”Added together, these hundreds of thousands of sites have the potential to store around 22 million Gigawatt-hours (GWh) of energy. It’s more than enough to get the entire planet running on renewables, which is where we want to get to.






