Mixed Greens: OPower Wants to Save a Terawatt Hour, ZETA Homes Pick up Steam, and More

Update! 20 PowerPoint Slides That Shook the Earth
These slides have served as change agents in greentech circles. By popular demand, we’ve added a few slides to the collection.

Water or Rocks: What’s the Secret Ingredient for Energy Storage?
It’s a modern duel over energy storage involving all four—earth, fire, water, air—of the original elements.

Itron and Landis+Gyr Share Communications
Plus, a new industry group set to lobby for more smart meters

Mitsui Enters Into JV With Efficiency Startup Transcend Equity
The Japanese giant bets that energy efficiency can be simplified.

What’s the Worst Green Tech Business to Be In?
Bioplastics? Modular homes? Smart grid? Which green market gives you the willies?

In Storage, Let’s Hear It for Zinc
The “Zinc Superhighway” just doesn’t have a nice ring to it. Luckily, most want to use it for grid storage.

White House Unveils Smart Grid Policy Framework
The report calls for sharing of best practices, more decoupling and empowering consumers with information.

What’s on the Mind of Utilities? Water
Black and Veatch finds concerns about droughts and other water issues are causing lost sleep at power providers.

Siemens Invests In, Partners With Tendril
Is Siemens thinking of joining the shopping spree?

Nest Labs: iPhone Alums Prepping Home Networking Devices
VCs are throwing money at this home networking outfit with Apple lineage.

Vinod Khosla Slaps Energy Storage With Some Tough Love
The VC investor recognizes the value of storage, questions the technologies being applied, and alienates most of the industry.