Swell’s largest contract yet comes after lining up $450 million to aggregate residential solar-battery systems to help the grid.

The Ravenswood plant owners look farther afield to supply clean electricity to the metropolis.

Federal data reveals that natural gas will supply just 16 percent of new power plants this year as cheap wind and solar power take over the market.

A pathbreaking project from AES will combine solar generation, batteries and multiple reservoirs and hydro generators.

Fluence wants to grow its large-scale storage business faster to match an accelerating market.

When life went virtual, virtual power plants came alive.

An attempted shortlist of the major breakthroughs in the energy storage industry’s biggest year ever.