Coal fired power stations being used because of electricity shortages

According to an article by the BBC old coal fired power stations have been fired up as there is a shortage of electricity for the National Grid due to wind farms not operating in windless conditions. Ironic when carbon neutral pledges have been made. One wonders just how practical they are. We will be using more electricity not less in the future with electric cars, no gas boilers etc. The exigencies of the moment result in fossil fuels being used. Are we going to have umpteen nuclear power stations to cope? If sea levels rise as much as they say why are they built on the coast? How will the radioactive waste be dealt with? We seem damned either way, although Scotland may be OK with HEP.