Harvard University’s District Energy Facility (DEF) is an important step toward curbing global climate change. It’s designed to adapt to emerging sources of energy that are expected to replace high-carbon-based fuels. It is expected to be fossil fuel-neutral by 2026 (burning many kinds of fuel in addition to natural gas) and fossil-fuel-free by 2050.
As noted above, the DEF’s major innovation is its ability to use varied types of fuels. A possible fuel could be combining it with solar panels. Hydrogen manufactured by electricity from solar panels could be injecting into natural gas. Most of the energy could come from solar-generated hydrogen.