Ключевые слова: alternative, alternator, backup, critical, current, day, diesel, eco, electric, electrical, electricity, emergency, energy, engine, environment, equipment, exhaust, external, failure, fuel, gasoline, generate, generation, generator, grass, green, industrial, industry, landscape, lawn, machine, nature, nobody, outage, outdoors, park, pipe, power, safety, secondary, side view, standby, street, sunny, supply, technology, trees, ups, white, yard,