Cranmore made headlines in 2003 when it became the first ski area east of the Mississippi to run its grooming equipment and other diesel vehicles on the then-innovative alternative fuel that few others were utilizing.

Cranmore switched to biodiesel (B20) to operate their four groomers. Cranmore was the first Eastern United States winter resort to switch to biodiesel (B20) instead of conventional fossil fuel diesel. The resort uses more than 20,000 gallons of 20% biodiesel fuel each year which results in a 4,000 gallon reduction of conventional fossil fuel diesel.

This winter, Cranmore installed 70 additional high-efficiency snow making tower guns, replacing older less efficient tripod snowguns. This on top of the 80 new guns added last year means Cranmore can now make more snow more efficiently than ever before.

Previously, Cranmore instituted an anti-idling program for both staff and guests, instituting "Clean Air Zones" all around the resort. Motor vehicles are the leading source of air pollution in New Hampshire and one of the primary contributors of greenhouse gas emissions.

Cranmore has been repeatedly recognized for its efforts to “go green.” The National Rural Electric Cooperative Association presented a National Community Service Award to New Hampshire Electric Cooperative for the co-op's multi-faceted program to help Cranmore Mountain Resort reduce its energy consumption by applying new, efficient technologies and participating in a demand response program.

General Manager Ben Wilcox has been a speaker at various conferences and events on Cranmore’s biodiesel program, including the state’s Green Slopes Series. Cranmore’s long-time Operations Director, Jimmy Mersereau, received a post-humous Lifetime Achievement Award in 2010 from the Environmental Protection Agency for his efforts at the resort. Marketing Director Kathy Bennett is the chairman of the environmental committee of Ski NH, working to help other ski areas develop environmentally friendly policies.