Ключевые слова: alternative, alternative energy, clean energy, conservation, ecofriendly, ecological, ecosystem, electric, electricity, energy, environment, environmental, environmental care, environmental conservation, environmental conversation, environmental protection, global warming, hydropower, light, natural, nature, panel, power, powerhouse, propeller, protection, renewable, renewable energy, solar, solar cell, solar energy, solar panel, solar power, solar power station, sun, sunlight, sustainability, sustainable, sustainable energy, sustainable resources, technology, turbine, turbines, water, wind, wind turbine, windmill, windmills,