Ключевые слова: ac outlet, alternative, background, bio, bioenergy, birch, cable, concept, conceptual, conservation, conserve, eco, ecofriendly, ecologic, ecological, ecology, efficiency, efficient, electric, electric cable, electricity, energy, environment, environmental, grass, green, idea, invention, nature, outdoors, outlet, peg, plug, plugin, power, receptacle, recycling, renewable, reprocessing, responsibility, reusable, saving, socket, socket plug, sustainability, sustainable, switch, switchplug, tree,