Ключевые слова: american, appliance, background, bank, banking, banknote, battery, bill, business, cable, cash, concept, connection, consuming, consumption, cost, currency, device, dollar, economy, electric, electrical, electricity, energy, equipment, expenses, finance, financial, growth, idea, investment, light, line, money, overload, paper, payment, plug, power, price, prices, saving, savings, security, socket, technology, voltage, white, wire, wired,