Solar power and wind.
While there are many sources of renewable energy the best sources of renewable large scale sources remain wind energy and some forms of solar power. According to studies presented in 2009 these two sources are the most viable for large scale usage. While the initial installation costs for these energies remaining higher than more traditional sources (coal, fossil fuels, etc.) the costs of the power itself is significantly lower.
Hydroelectric
There may be some debate as to what is meant by "best". All forms of energy generation will create some form of waste (or pollution). Solar causes the pollution in it's creation and short life span (under thirty years). Wind kills birds and is ineffective when there is minimal wind.
The one renewable source we have that offers us power similar to that found from fossil fuel plants though is hydro. Water flows all the time, not on the whim of weather. Thus, we can derive power from hydro on our schedule and not that of the weather, as solar and wind do. Additionally, Hydroelectric is a proven technology with a positive return on investment.
no its a renewable source of energy
The first renewable energy source used by humans was likely wood, as it was used for heating and cooking thousands of years ago.
renewable source of energy can be regenerated but non-renewable source of energy can not be regenerated.
Yes, wave energy (hydro-power) is a renewable source of energy.
yes because wind is a renewable source of energy
No, wind is a renewable energy source. The wind will always be blowing!
Uranium is not a renewable source of energy.
it is not renewable
Non-renewable energy source means that the source will eventually run out and is not renewable.
It is A renewable source of energy.
The quantum energy generator is considered a hoax and not a legitimate source of renewable energy.
Biomass is the source of almost half of America's renewable energy.