It’s not that Invenergy was ever shy about its storage ambitions.
The Chicago-based developer, which has built 22,600 megawatts of wind, solar and natural gas generation, entered the storage market in a big way back in 2015. It delivered two 31.5 megawatt projects within six months of each other, outranking any other batteries installed in the U.S. that year.
Then the company went quiet — a fittingly massive followup didn’t materialize. Until early this year, when Invenergy revealed that it would supply much of utility Arizona Public Service’s landmark 850 megawatt energy storage procurement, designed to shift its ample solar resource into night-time capacity.
