Montana energy storage project lines up financial partner

Construction on a $1 billion energy storage system in central Montana could start as soon as next year after its sponsors said Friday they reached a financing agreement with a Danish firm that invests in renewable energy.

Carl Borgquist, president of Bozeman-based Absaroka Energy, said the involvement of Copenhagen Infrastructure Partners of Denmark marks a significant step forward for the 400-megawatt project near Martinsdale.

Next up, he said, is to make arrangements with utilities or others interested in using the Montana facility to complement their own electricity generation.

"That's our last step before we're able to go under construction and start putting concrete and steel in the ground," Borgquist said.

The Gordon Butte Pumped Storage Hydro Project was first proposed in 2010 and is intended to make and other sources more reliable , by storing the electricity they produce until it's needed.

Described as a "hydro battery," it would use excess power produced by or other sources to pump water from a reservoir uphill to a second reservoir. The water would be released during periods of high electricity demand, turning hydropower turbines to generate power.

Many utilities use power plants fueled by natural gas to fulfill a similar role. They're needed to balance electricity across the as demand rises and falls over time.

A spokeswoman for Copenhagen Infrastructure Partners confirmed the firm's involvement in the project. Senior Partner Christian Skakkebaek said in a statement that pumped storage hydro "will be a key resource as the global transition to renewable energy continues to accelerate in states such as Montana."

Construction could take up to four years and require 300 to 400 workers, Borgquist said. Once the project is operational, it will have a permanent workforce of two- or three-dozen employees, he said.

The Federal Energy Regulatory Commission issued a license for the facility in 2016.

There are more than 20 gigawatts of pumped storage capacity across the U.S., according to the National Hydropower Association. An additional 31 gigawatts of capacity have been proposed, primarily in Western states, according to the association.


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Jul 21, 2019
Energy storage projects ought to be more forthcoming about the project's energy storage capacity, not just the regeneration power.

"400MW" but for how long? How many MWh of energy storage capacity? They don't say.

I calculate that somewhere in the range 2,000 MWh to 14,400 MWh of energy storage would suit for regenerating 400MW, depending on how much back-up power they want to use.

http://scottish.s...400#grid

Being shy about energy storage capacity is a nasty habit that electrical battery project press releases started because their "snake oil salesmen" were too ashamed to admit to the tiny energy storage capacity of their battery.

Pumped storage hydro is routinely well into the GWh range and those superior energy storage capacities should be boasted about and compared favourably with the inadequacy of battery storage.

My 100% Renewable Energy Blog
https://scottishs...ess.com/

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