What is a renewable and non renewable energy?

Answer 1

Renewable = which can be used again eg. wind, water, energy from sun.
Non-renewable = which cannot be used again eg. coal, petroleum.

Renewable energy is the direction we should be heading in, this will not only clean up the environment but create millions of green jobs too. It's time people participated in the discussion on green energy and adopted it in a big way.
renewable resources are resources that... can.. be renewed. such as water, carbon, coconuts, etc.. nonrenewable resources are resources that cannot be replaced anymore. such as petroleum, etc..

Nonrenewable energy is energy that can not be replenished in a short period of time, such as fossil fuels (coal, oil, and natural gas)

Renewable energy is energy from Natural Resources that can be replenished in a short period of time, such as solar, wind, tidal and geothermal energy.

As for nuclear energy, it is debatable. According to the definitions above it is clear that nuclear energy is nonrenewable. However, on the other side it may be considered almost as renewable energy source because of:

• The availability of tremendous resources of uranium
• The availability of producing nuclear fuel ( plutonium and uranium-233) in some nuclear reactor types (fast and thermal breeder reactors) that may exceed the consumed nuclear fissile fuel.
• The prospects of the nuclear fusion as source of energy (although by definition is nonrenewable energy source) which could add high potentials to nuclear energy resources.
  

Answer 2

A renewable source of energy is something that is being continually replaced faster than we use it up. A renewable fuel can be replaced. This would include biomass, you crop it and next season you grow another crop. A renewable source is one that can be used over and over without it running out.

• Solar energy is considered a renewable source of energy because the sun's energy is continuous. (Note that the rest of this list are all forms of solar power.)
• Wind Power
• Water Power (Hydro-electricity from dammed rivers, tidal streams and ocean waves)
• Thermal Power from the earth (Geothermal: Using the earth's heat to generate electricity)
• Thermal Power from the ocean
• Biomass, the burning of plant material, is a renewable resource. Even though the burning puts carbon dioxide (CO2) into the atmosphere, it is recently absorbed CO2, so it is part of the natural carbon cycle. It also prevents a much greater amount of methane being released by the decomposing vegetation, so it is rated as positive.

A non-renewable source of energy is something that is not being replaced as we consume it. Fossil fuels cannot be replaced, as they took millions of years to be formed.

• Oil is a good example of a non-renewable resource. It is used to make gasoline and other fuels, as well as generating electricity.
• Coal is non-renewable.
• Natural gas is non-renewable.
• Peat is non-renewable.
• Uranium is non-renewable.

Answer 3

Yes, nonrenewable and renewable sources are different - very different. For example, nonrenewable sources such as fossil fuels harm the environment and will run out soon. Green renewable sources are good for the environment such as solar energy. It comes from the sun. That is why it is called solar energy.

Answer 4

Renewable energy is an energy from a source that can be reused such as Wind Turbines, Water Power.

Non-renewable energy is energy from a source that cannot be Replenished.

Answer 5

A renewable resource is a product that can continuously be used without running out (water, air, sunlight). In other words, "renewable" means that the resource is replenished (rain water, trees) or is in such massive quantity as to be considered practically infinite (sunlight).

A nonrenewable resource is one that can be collected and converted to useful items or energy but usually breaks down into a different substance when used and cannot be replenished or used again. (oil, natural gas, gold).

Answer 6

Renewable - unlimited source Non renewable - limited resource

Answer 7

Renewable energy can be renewed in a short time I.e. Wind power. Non renewable energy takes a long time, ususally millions of years, to become usuable again I.e. Fossil Fuels.