Geothermal Energy: uses hot water from the ground to generate energy. Have you visited the Glenwood Springs Hot Springs? Not only do the hot springs provide a relaxing day-trip for many Roaring Fork Valley residents, they also heat the lodge, snowmelt system, pool lobby, and stores. The Glenwood Springs Lodge is the largest geothermally heated building in Colorado.
Geoexchange Systems: use the ground as a heat sink, extracting heat from, or putting heat into, the ground. This source of clean energy can be cost-effective on large and small scales. Did you know that these systems, also known as ground-source heat pumps, are 65% more energy efficient than your average HVAC system? Ideally, a ground source heat pump’s electrical usage would be offset with an on-site solar PV system.
Hydroelectric Power: Rivers are an important and valuable resource to many Coloradans and Roaring Fork Valley residents. Using flowing water to generate electrical energy, hydropower is considered another valuable alternative to non-renewable energy sources. See it in action locally at Ruedi Reservoir, where a three-megawatt hydroelectric plant can be found.
Wind Energy: uses turbines to create energy through air flow. According to the Colorado Energy Office, as of 2016, 17.3% of the electricity generated in Colorado is through wind.
Battery Storage: to make your on-site renewable energy system more useful and valuable to you, it may make sense to consider adding a battery.
*Customers of certain electric utilities can pay a little extra on their utility bill to ensure their electricity comes from renewable energy. Xcel Energy customers can subscribe to the Windsource program; Holy Cross Energy customers can subscribe to the PuRE Program. City of Aspen Electric customers automatically receive 100% renewable energy.