Yeah, it is a lot more efficient, primarily due to conversion losses. A gas powered power plant loses about half of the energy fed into it as gas to waste heat,

Yeah, it is a lot more efficient, primarily due to conversion losses. A gas powered power plant loses about half of the energy fed into it as gas to waste heat, whereas a gas heater has essentially 100% efficiency. Also, no, gas does not inherently involve digging carbon out of the ground, you can produce methane in bio reactors or via electrolysis from electricity (see https://en.wikipedia.org/wiki/Power_to_gas https://en.wikipedia.org/wiki/Power_to_gas ), which is another method of storing surplus electric energy, either to be converted back later with a gas turbine, or to be injected into the natural gas grid.