My first reaction to the report of DC's move to eliminate gas heating in new domestic construction is one of the more stupid ideas I've ever read. I thought DC's move will increase the emission of CO2. Why? Because gas is more efficient as a heating method.
But, on carrying out the calculation using the available data on the portion of renewable supplied electricity, and the relative efficiencies, I find that the resulting CO2 emission will be reduced. Furthermore, the proportion of non-CO2 emitting electric supply is planed to increase.
Because direct heating W/gas is approximately one third less CO2 emitting that heating W/electricity generated by gas turbines, [1] it makes sense in locations where that is the major method of generating electric energy. Since DC obtains approximately 65% of its electricity renewably, then yes, no gas. Even better is roof top solar.
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My first reaction to the report of DC's move to eliminate gas heating in new domestic construction is one of the more stupid ideas I've ever read. I thought DC's move will increase the emission of CO2. Why? Because gas is more efficient as a heating method.
But, on carrying out the calculation using the available data on the portion of renewable supplied electricity, and the relative efficiencies, I find that the resulting CO2 emission will be reduced. Furthermore, the proportion of non-CO2 emitting electric supply is planed to increase.
Because direct heating W/gas is approximately one third less CO2 emitting that heating W/electricity generated by gas turbines, [1] it makes sense in locations where that is the major method of generating electric energy. Since DC obtains approximately 65% of its electricity renewably, then yes, no gas. Even better is roof top solar.
Here's the data:
renewable elec. supply: 76.8 GWh; non-renewable 41.8GWh annually [2]
bc
[1] https://www.nwga.org/the-efficiency-of-natural-gas-versus-electricity/
[2] https://findenergy.com/dc/district-of-columbia-electricity/
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