Ключевые слова: adjust, alternative, apartment, appliance, background, banknotes, battery, central, cold, consequences, copyspace, crisis, denomination, economy, embargo, energy, euro, expenses, expensive, freeze, gray, grey, hard, heat, heating, hold, house, include, install, insulate, money, not enough, pay, price, problem, regulator, residential, resources, save, season, sky, technology, thermostat, turn on, wall, warm, white, window, winter,