AngelList

The web platform that powers America's independent solar installers.

Smart energy management in the cloud. Low cost, no touch, instant payback.

OPOWER for Water

cradle-to-cradle batteries

Expedia for Electricity

Mosaic is an online marketplace that connects you to invest in local clean-energy projects

A better way to bike

We are developing the machine that will make thorium the world's primary energy source.

Solar charging stations for electric vehicles

Smart data center power management

Solar Business Management Platform/Marketplace

Earth Intelligence for the New Energy Economy

Social game mechanics to change how utilities engage their customers.

Nanotechnology power generator for autonomous electronics and wireless sensor applications

Renewable jet fuel produced in Massachusetts

Plug and play industrial power plants with 2X the efficiency and 1/3 the cost

Cloud-based Energy Management Software

Cloud Analytics for Sensor Telemetry

Pay-as-you-go solar for emerging markets

Energy Storage For Refrigeration Applications

Energy efficiency for the rest of us. Finally.

Mint.com for energy

Airborne Wind Energy

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