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Energy Comparison
Nobao Energy Saving GSHP Central Air-conditioning System Traditional Central Air-conditioning System Solution
Initial investment By Nobao Group, no need of customer investment. Big amount of initial investment, around 350-400 yuan/m2.
Equipment Depreciation Undertaken by Nobao Group Around 10% each year.
Functions A complete system to satisfy all demands: heating, cooling, free hot water, floor heating, swimming pool heating and etc. In need of combination of different systems.
Second investment No need. The life term of the system is 25 years. Same as the initial investment, 350 yuan/m2.
Energy Consumption During Operation Low. saving 50-70% of energy of the traditional system High. The cost of boiler, coal, gas is increasing.
Maintenance Fee Nobao Group shall be responsible for all maintenance work during the EMC period. High maintenance fee.
Maintenance Staff Few, 1-2 people Many, 8-10 people.
Daily Operation Maintenance Automatic, maintenance free Frequency conversion machines combined: in need of refrigerant charging every 6-7 years + the outdoor maintenance risk + appearance disorder; the cold water unit and boiler system need the caring of professionals by shifts + regular maintenance and inspection is required + high safety risk.
Machine Room Area Small area is required, low noise level. Frequency conversion machines combined: the master machine is located outside which influence the neat look of the building; cold water unit and boiler system take bigger footprint.
Environmental Protection and policy Zero CO2 discharge and no noise vibration; green energy; Big support and cash subsidy from the government. High energy consumption, and high emission. The government policy restricts the usage of boiler: burning pollution (coal, diesel oil, gas); cooling tower: noise pollution + aqueous enzymatic pollution. Risk of penalty and inspection of the government.

One Time Energy Utilization of Nobao GSHP Heating Mode (outlet water 65℃ at condenser, outlet water 5℃ at evaporator)

Projects Electricity generation and power transmission and distribution Heat and power cogeneration Heat pump COP One Time Energy Utilization
Coal-fired power plant + heat pump 0.33   3.9 1.3
Coal-fired thermo power plant + heat pump 0.2~0.3 0.5 3.9 1.2~1.8
Natural gas-fired power plant + heat pump 0.35   3.9 1.4
Gas and steam combined cycle power plant + heat pump 0.45~0.55   3.9 1.8~2.1

One Time Energy Utilization at Boiler Heating Mode

Items Boiler Efficiency Heat supply pipeline efficiency One Time Energy Utilization
Coal-fired 0.5~0.8 0.7~0.92 0.35~0.73
Gas-fired 0.85~0.94 0.7~0.92 0.60~0.86
Fuel 0.8~0.9 0.7~0.92 0.56~0.83
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