Ключевые слова: ac outlet, alternative, background, bio, bioenergy, care, clover, concept, conceptual, conservation, conserve, eco, ecofriendly, ecologic, ecological, ecology, efficiency, efficient, electric, electricity, energy, environment, environmental, grass, green, idea, nature, outdoors, outlet, plug, plugin, power, receptacle, recycling, renewable, reprocessing, rescue, resource, responsibility, reusable, reuse, save, saving, socket, sustainability, sustainable, switch, technology, trefoil,