Ключевые слова: amount, amp, background, billing, budget, business, consume, consumption, cost, counter, efficiency, efficient, electric, electricity, energy, expensive, gage, hard disk, high, home, hour, hours, house, industrial, industry, kilowatt, kwh, lower, measurement, meter, metering, money, office, pay, payment, power, reduced, reducing, reminder, residential, save, saving, supply, system, technology, usage, use, utility, voltage, wattage,