This "77%" is nothing new, just the latest, most up-to-date price quote on their terms.
IMHO the real percentage is more like 200% more.
It was this way even before the price of energy skyrocketed in the early 1970's.
People in their all-electric homes didn't care about the cost multiple when it was only a few dollars difference every month.
The underlying physics are hard to argue against, it simply takes about 3 times as much natural gas to generate the electricity to heat one home, compared to using gas heat burned directly for the same amount of indoor heating.
So you pay about 3 times as much for the same amount of electric heat as you do gas and that ratio has been holding steady for many decades.
I also expect the differential to be maintained even after power plants are further decoupled from natural gas fuel supplies themselves.
IMHO the real percentage is more like 200% more.
It was this way even before the price of energy skyrocketed in the early 1970's.
People in their all-electric homes didn't care about the cost multiple when it was only a few dollars difference every month.
The underlying physics are hard to argue against, it simply takes about 3 times as much natural gas to generate the electricity to heat one home, compared to using gas heat burned directly for the same amount of indoor heating.
So you pay about 3 times as much for the same amount of electric heat as you do gas and that ratio has been holding steady for many decades.
I also expect the differential to be maintained even after power plants are further decoupled from natural gas fuel supplies themselves.