ISBN-13: 9786206843313 / Angielski / Miękka / 120 str.
Renewable energy is energy from renewable resources that are naturally replenished on a human timescale. It includes sunlight, wind, the movement of water, and geothermal heat. Although most renewable energy sources are sustainable, some are not. For example, some biomass sources are considered unsustainable at current rates of exploitation. It is often used for electricity generation, heating and cooling. Generally, renewable energy projects are typically large-scale, but they are also suited to rural and remote areas and developing countries, where energy is often crucial in human development.