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transforms global energy use to create a clean, prosperous, and secure low-carbon future.

Image courtesy Joerg Boethling

We’re Tackling The Climate Challenge With

Global, Market-Based Solutions

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We have offices in four U.S. locations including Basalt and Boulder Colorado, New York, and Washington D.C., and one international office in China.

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Global Energy Transitions

We’re working in China and the Caribbean to reduce dependence on fossil fuels; helping improve access to electricity in Sub-Saharan Africa; and helping India transition to clean mobility for all.

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We’re working in the U.S. and China to transform mobility to use significantly less oil for personal mobility and trucking; and globally to reduce carbon emissions from the shipping and aviation industries.

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We’re working in the U.S. to decarbonize the electricity system; supporting power sector reform in China; helping island economies transition to renewables; improving electricity access in sub-Saharan Africa; and providing renewable energy at mining operations.

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We're driving massive market growth for buildings that are better for owners, occupants, and the environment both in the U.S. and China.

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Features and News


Does “Fuel On Hand” Make Coal and Nuclear Power Plants More Valuable?

Whatever the virtues of fueled central power stations, “fuel on hand” is not one of them, despite Secretary of Energy Perry’s claim to the contrary. To manage both cost and risk, reliability and resilience, a diverse portfolio of efficiency, load flexibility, and renewables is sufficient, smart, and winning in the marketplace.—July 18, 2017

Image Credit: Don Wilson

Press Release

Seattle-Tacoma International Airport Moves a Step Closer to Funding Aviation Biofuels

Our latest report in partnership with SkyNRG, Innovative Funding for Sustainable Aviation Fuel at U.S. Airports, equips Seattle-Tacoma International Airport to catalyze large-scale uptake of sustainable aviation fuels for its airlines.—July 19, 2017


Solutions Journal, Summer 2017

Read our latest Solutions Journal magazine, a special anniversary publication including a Q&A with Sir Richard Branson, reflections on 35 years of progress and our 35 most audacious ideas.—July 10, 2017

Press Release

WattTime Joins Rocky Mountain Institute to Change the Way Carbon is Measured

Partnership will allow customers to choose when and how they consume energy in real time, for the first time.—June 27, 2017


India Leaps Ahead: Transformative Mobility Solutions for All

India’s “leapfrog ” opportunity to create a shared, electric, and connected mobility future promises to provide Indians with clean, affordable, efficient, and reliable transportation options to support and enhance their daily lives—May 12, 2017.