The next big thing for data centers: DC power

Although we live in an AC-dominated world, DC seems poised for a comeback, particularly in data centers. Facebook adopted a DC architecture in its Prineville, Ore., data center. SAP spent $128,000 retrofitting a datacenter at its offices in Palo Alto, Calif., to rely on DC power.

Aquion Energy raises $20M for its grid battery

Aquion Energy, which is developing a low-cost battery for the power grid made from sodium and water, has closed $20 million of a planned $30 million round and has brought on investor Foundation Capital in addition to existing investor Kleiner Perkins Caufield & Byers.

EPRI’s Erfan Ibrahim: 5 Myths About the Smart Grid Buildout

Panel discussions at technology conferences are often pretty dry affairs, but smart grid expert Erfan Ibrahim of the influential group Electric Power Research Institute (EPRI) proved today at a conference in San Francisco that even topics like home area networks can rile a crowd. Speaking at The Networked Grid conference hosted by Greentech Media, Ibrahim — who heads EPRI’s work on communications, systems management and cyber security for the smart grid — dished out a sort of grab bag of opinions on a range of hot smart grid topics. Here are five myths, misunderstandings and truths he raised about how the smart grid should be rolled out. Read More about EPRI’s Erfan Ibrahim: 5 Myths About the Smart Grid Buildout