Ключевые слова: alternative, chart, city, cityscape, clean, concept, dam, design, discharge, earth, eco, ecology, electric, electricity, energy, environment, environmental, factory, flat, fuel, gateways, generation, generator, graphic, green, house, hydro, hydro power station, hydroelectric, hydropower, icon, illustration, industrial, industry, info, info graphic, infographic, landscape, natural, nature, plant, power, power generation, pylon, recycle, renewable, river, save, sea water, set, sign, source, station, symbol, technology, town, turbine, water,