In Canada heating is the leading emitter. And even if power is the leading emitter in the OP's region, power plants are lowering their carbon output far faster than any other source.
Coal -> Natural Gas is still the leading source of emissions reduction, but that transition is nearing its completion. The shift to solar/wind is what will continue the transition.
> Power plants are still the leading emitter, full stop.
is not true, at least not regionally. In Massachusetts, for example, power is 20% of emissions while transportation is 37%.
https://www.mass.gov/info-details/massachusetts-clean-energy...