Wind. It's almost everywhere on the earth. It runs almost all the time. There are many ways to harness it. Virtually every country on the planet can use it. There is almost no pollution, excepting building the wind turbines.
solar power
No the sun is the most renewable energy sourse
They use a renewable source of energy. Most are constructed using non renewable resources.
electrical energy can be derived from a renewable or non renewable source. It itself cannot be classed as renewable as such because capacitors to store the energy are not 100% efficient in converting back to electrical energy
Coal is the most widely used source of non-renewable energy.
LEDs are the most energy-efficient lights as of 2016.
Hydropower
yes
It is A renewable source of energy.
Hydro-electric power is the most common renewable source all over the world.Nuclear power is not renewable. When the uranium is all used up there isn't any more.
renewable
Hydropower