InREA Draft Definition of Renewable Energy

InREA's current working draft definition of renewable energy resources includes:

wind energy
solar energy
photovoltaic cells and panels
dedicated crops grown for energy production
organic waste biomass
hydropower not involving the construction of new dams and micro hydro
fuel cells; methane systems that convert waste products including animal, food, and plant waste, into electricity
ocean current or wave energy
geothermal energy
combined heat and power systems that use natural gas or renewable energy resources as feedstock and achieve at least seventy percent (70%) overall efficiency
end-use energy efficiency improvements

Simpler alternative definition: Renewable energy is any naturally occurring, theoretically inexhaustible source of energy, such as biomass, solar, wind, tidal, wave, geothermal and hydroelectric power that is not derived from fossil or nuclear fuel.