Ключевые слова: background, bill, bills, charge, charges, concept, conservation, consumption, cost, costs, domestic, ecological, economic, economy, efficiency, electric, electrical, electricity, energy, environment, finance, financial, fuel, gas, growth, heat, home, house, illustration, increase, issues, money, oil, power, price, problems, raise, rise, road, sign, sky, supply, tariff, up, usage, utility,