"No form of transport requires less energy than telecommuting" is quite the statement. If your work force bikes or walks to work, pretty sure that has far lower energy requirements than having all of them telecommute.
People not all using their own computers and internet connections, during meetings because they're all in the same room (or in a room with a single computer and internet connection), as well as people not all needing to each have lights, heating, etc. on at home because they're all in a shared building with (almost certainly more efficient) HVAC.
