​Results

• The use of water energy systems increased the total investment and construction costs by RMB 3,812,040.

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• Build a closed water energy reservoir that can store 1,500 tons of water for air conditioning, domestic water, and hot water for bathing. Water can be supplied continuously for 50 days during dry periods.

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• Transfer 400 kW of peak power for air conditioners.

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• The annual energy cost saving is 10,113,866 yuan, and the energy cost saving rate reaches 74.74%.

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• The annual energy saving rate reaches 30.95%.

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• Reduce CO2 emissions by 768.2 tons per year, and reduce CO2 emissions by 43.36% .