you can't calculate it that easily , it vary based on where are you and how much you use
and it become 4 time the amount of last year for the higher usage group
also the industry won't build more energy efficient housing or industrial equipment or cars is more related to lack of law or better say lack of enforcing it than the price of the energy . when they change a Euro-II car into Euro-4 car in one night by just writing a later , what you expect about the rest of the things
you only can raise the energy pricing if you also don't keep the wages artificially low,