[1] The Clean Energy Standard Act of 2012 defines «clean» electricity as «electricity generated at a facility placed in service after 1991 using renewable energy, qualified renewable biomass, natural gas,
hydropower, nuclear power, or qualified waste - to - energy; and electricity generated at a facility placed in service after enactment that uses qualified combined heat and power (CHP), [which] generates electricity with a carbon - intensity lower than 0.82 metric tons per megawatt - hour (the equivalent of new supercritical coal), or [electricity generated] as a result of qualified efficiency improvements or
capacity additions at
existing nuclear or
hydropower facilities -LSB-; or] electricity generated at a facility that captures and stores its carbon dioxide emissions.»
With the need for better global water management and the push for expanded global
hydropower capacity, careful siting of new reservoirs, and revising management of
existing ones may help balance the positive ecosystem services that reservoirs provide against the GHG emission costs.