Big four Powers (China, Canada, Brazil, and USA)
Hydroelectric energy is energy derived from the movement of water.
Water has mass. It falls and flows downward due to gravity. When it moves, it has kinetic energy which can be harnessed. Kinetic energy is the energy of motion.
The wind is a clean, free, and readily available renewable energy source. Each day, around the world, wind turbines are capturing the wind’s power and converting it to electricity. This source of power generation plays an increasingly important role in the way we power our world.
Leaders (China, Germany, spain )
Biofuels are combustible fuels created from biomass; in other words, fuels created from recently living plant matter as opposed to ancient plant matter in hydrocarbons. In recent years a lot of croplands have been used to produce biofuels, and this is damaging the environment.
Solar power is the conversion of energy from sunlight into electricity
Active solar techniques include the use of photovoltaic systems, concentrated solar power and solar water heating to harness the energy. Passive solar techniques include orienting a building to the Sun, selecting materials with favorable thermal mass or light-dispersing properties, and designing spaces that naturally circulate air.