Walter has a head like a rock.
I provided him with a link proving that some cell towers use natural gas which, as you say, is piped to the facility.
Even home standby generators use natural gas
What Fuel Type Do Home Standby Generators Run On
Generator fuel types
Depending on the generator model, Generac standby generators may run on liquid propane vapor (LP), Pipeline Natural Gas (NG), or Diesel fuel. Some generator models can also be converted between fuel types. For example, Generac home standby generators 7 kW-48 kW are shipped as natural gas from the factory and can be converted in the field for liquid propane.
I also trust my tax lawyer a bit more than a shade tree, Internet genius like Walter.
Poor Walter.