Ключевые слова: background, bank, banking, battery, bill, business, buying, charge, cold, concept, consumption, costs, credit, crisis, current, debt, economy, electric, electrical, electricity, electronics, energy, expensive, finance, financial, gas, heat, home, increases, loss, money, object, pay, payment, pig, piggy, piggybank, pipe, plumber, power, pressure, price, public, radiator, regulator, save, technology, temperature, thermal, utility,