Well, even if the energy flow isn't costing you anything (like the wind, or sunlight) you still need some sort of hardware to change the energy into something more useful like electricity. And that hardware will still cost money.
Renewable energy can't run out. Non-renewable energy WILL run out. Renewable energy is produced at a constant rate, non-renewable is not. Renewable energy is free when the generator is built, non-renewable is not. Renewable energy does not cause pollution (with the exception of biofuels), non-renewable energy does.
yes, because it is a renewable resource it is free
The motto of Operation FREE is 'Secure America with Renewable Energy.'.
its renewable and free
If you use renewable energy then you aren't using the energy generated in power stations so fossil fuels aren't being burned to create energy which coats a lot of money, where as renewable energy is basically free apart from the equipment you need to transfer the energy into useful energy such as sunlight is free and so is wind.
because it is a renewable energy and is free to use.
Geothermal energy is a free, natural resource. It is a renewable energy that will not run out and does not harm the environment.
Water power is like wind, thermal heat, and solar power all renewable.
The most popular renewable energy sources currently are: Solar energy. Wind energy. Hydro energy. Tidal energy. Geothermal energy. Biomass energy.
Energy is not renewable. The sources to make that energy may be. After the initial cost of plant and equipment some sources are practically free so the only costs are maintenance costs..
"Solar energy is a renewable free source of energy that is sustainable and totally inexhaustible, unlike fossil fuels that are finite. It is also a non-polluting source of energy and it does not emit any greenhouse gases when producing electricity."This is according to energymatters,com,au
1. It is a reasonably constant source. 2. It is 'renewable'. 3. The source of the energy is free.