ABSTRACT
In addition, efficiency is the second action, after redesign, within the energy greenhouse gas (GHG) reduction hierarchy presented earlier. Within efficiency, different measures have different ROI. Repairs such as plugging the leaks in an electricity-intensive HVAC system will generally have a great return. Electricity use is relatively simple to shift away from GHG-intensive coal and natural gas, as so many renewable energies are in the form of electricity, and thus, electrification of gas equipment is a popular strategy. Building designers are getting the profession to a place where buildings can reliably be built net zero in a relatively affordable manner. Key supplies used by business may currently be GHG intensive, but that’s not necessarily a reason to not use them. Work instead with the supplier to incorporate the measures into their own operations and reduce the GHG intensity of those supplies.
