Renewable energy

1. Renewable energy

2. Sunlight We can use the solar energy. In 1830s, John Herschel famously used a solar thermal collector box to cook food. We using parabolic trough power plant, solar dish, solar power tower and solar cells We trying to make electric something. Solar energy is good at environment ! If we use much solar energy then earth is clean 

3. Wind Wind energy is awesome. CEC is advocating for more responsible wind power as a cost-competitive renewable energy resource. CEC is helping wind power. Wind energy has many environmental benefits. Wind energy is clean energy, it doesn’t contribute to smog, regional haze, acid rain… Wind energy fewer environmental impacts than using many other energy sources.

4. Geothermal Geothermal energy is thermal energy generated and stored in the Earth. Geothermal energy use the Earth's temperatures near the surface. Geothermal power plants: water (hydro) and heat (thermal). Geothermal plants require high temperature (300°F to 700°F) hydrothermal resources. Geothermal plants emit 97% less acid rain causing sulfur compounds than are emitted by fossil fuel plants.

5. Tidal Power Tidal energy is a form of hydropower Sluice gates use to control water levels A major drawback of tidal power stations is that they can only generate when the tide is flowing in or out Tidal energy does not have the environmental problem <-How it works

6.  We need to use renewable energy then we can make clean earth. Now earth is very dirty. We made like that. We must back to clean earth. Renewable energy is cool. Everybody should to use renewable energy!