The coal-brain in my family keeps telling me that we can't stop with coal and natural gas because they're realiable in the winter. People will freeze without th

The coal-brain in my family keeps telling me that we can't stop with coal and natural gas because they're realiable in the winter. People will freeze without them! If the wind doesn't blow, if the sun isn't up, we can't rely on that. ..and then came the grid scale batteries ...and then came the heat pump technology that works in deeply cold outside temperatures All of a sudden it's like...wait...why do we prefer fossil fuels again?