As part of an effort to overcome the long-term energy-storage challenge, engineers have invented a water-soluble chemical additive that improves the performance of a type of electrochemical storage ...

The new storage projects may provide extra months of supply and help during tight periods, but it doesn't solve the problem of a looming shortfall of natural gas.

MADISON — Solar and wind are quickly transforming the energy landscape — but if we are to realize the full potential of these intermittent, renewable energy sources, we’ll need safe, affordable ...