It isn't government policy that determines how much an American burns fossil fuel , even in China this is more a matter of individual striveing than government policy.
If there were a better choice for heating ones home that didn't burn fossil fuel there would be no need for governments to start fighting their populations to restrict their use of energy.
Solar cells are constantly getting cheaper , as oil grows gradually more expensive , how much gap is left in between the cheapness of oil and coal and the expense of installing silicon shingles that can harvest sunlight?
I hope to build a new house in a few years , I am looking for the best stuff to install.
Lots of insulation , a trombe wall , tankless water heater, solar heat collector etc.
Whatever I find practical I will install whatever is not practical will not become practical by government fiat.