What are the environmental benefits of cogeneration? (choose 2)

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试卷: LEED GA模拟题C[查看]
What are the environmental benefits of cogeneration? (choose 2)
A: Reduced air pollution
B: Reduced greenhouse gas emissions
C: Recharging of aquifers
D: Reduced wastewater generation
E: Reduced erosion and sedimentation

参考答案: AB

本题解释:
Notes:

Reference: Guide to Purchasing Green Power

Combined heat and power (CHP) is an electricity generation technology, also known as cogeneration, that recovers waste heat from the electric generation process to produce simultaneously other forms of useful energy, such as usable heat or steam. On average, two-thirds of the input energy used to make electricity is lost as waste heat. In contrast, CHP systems are capable of converting more than 70 percent of the fuel into usable energy. (Guide to Purchasing Green Power)

Because less fuel is burned to produce each unit of energy output, CHP reduces air pollution and greenhouse gas emissions.