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The hot water consumption is 80 tons, which is used for employees' bathing hot water. Solar energy is selected as the main heat source, providing 80 tons of bathing hot water. At the same time, a water source heat pump is used as a backup heat source for domestic hot water.
The wellhead originally used steam boilers, but later two 850 and one 700 water source heat pump units were used to provide heating and wellhead insulation for the community.
Usage effect: Party A cancels the boiler. In the actual measurement of Dongfeng Coal Mine, the maximum daily bathing electricity consumption is less than 200 kWh, and the cost is 140-150 yuan/day. The original use of steam as a bathing heat source resulted in a daily minimum cost of over 1000 yuan. The cost savings are greater than 85%.