The chart below shows estimates of CO2 emissions from all different energy sources at the COC. We used to not count emissions from firewood as part of our totals, but we are now estimating emissions from firewood as well as from fossil fuels and electricity generation. This data shows a reduction on average from pre-2020 emissions levels, but there is still some variability and room for improvement.
The chart below shows the sources of energy use at the Outdoor Center, and the percentage each of these sources comprises of our total on-site carbon footprint. Although most of our large buildings on campus are now heated with biomass or heat pumps, we are still using propane or oil for some of our smaller or further-flung buildings. Transportation, Grooming and Snowmaking are our other biggest areas of CO2 production.
The chart below shows the COC's electricity usage and production from solar panels on an annual basis. We now have 4 different solar arrays, including a large array that was installed in 2023 at the Hosmer Point Camp, which has brought us close to covering all of our electricity demand with solar power. This chart also shows how much our electricity usage has increased as we have added more buildings, switched systems from fossil fuel to electricity, and added EV charging.
