Ключевые слова: alternative, building, construction, cost, dam, eco, ecology, electric, electrical, electricity, energy, environment, environmental, factory, flat cartoon, flow, flowing, generation, generator, graphic design, hpp, hydro, hydroelectric, hydroelectricity, hydropower structure, hydrostation, industry, nature, ocean, portrait background, power, powerplant, renewable, resource, river, set, source, station, sustainability, sustainable, technology, tidal, tide, turbine, vector illustration, vertical poster, water, waterfall, waterpower plant, wave,