Record-high temperatures broiled most of the U.S. this week and pushed power grids to their limits. Eos Energy Corp is building a battery that company President Steve Hellman says will relieve the ... more 
Record-high temperatures broiled most of the U.S. this week and pushed power grids to their limits. Eos Energy Corp is building a battery that company President Steve Hellman says will relieve the grid during times of peak demand - and help save consumers money. less 
1 / 3
CBSTV Videos
Fri, Jul 19, 2013 6:32 PM EDT