Heat pump: the enemies of the heat pump calculate wrong

The enemies of the heat pump calculate wrong. The electric power consumption of the oil heating system is ignored, the development of the electric power production is wrong foreseen.



  Example old house renovation


Until now, the heat demand of this building was convered by 4800 l fuel oil per year. Additional the oil heating system consumed 2000 kWh electric power. A CCPP can produde with 4800 litre fuel oil 27283 kWh electric power.

4800 Litre * 9,8 kWh * 58% efficiency + 2000 kWh = 29283 kWh electric power

To save cost, they took a air heat pump and remained with the old radiators with needing high temperature. This is a double disadvantage. this is the most unfavorable case for the use of a heat pump. Nevertheless, they will come down from 29383 kWh to 12000 kWh.

  CO2 Emission


4800 Liter fuel oil emits 12720 kg CO2. Additional the emission for the production of 2000 kWh electric power. With the German electricity mix of 514 g CO2 / kWh, this adds up to 13748 kg CO2. Here is even the most unfavorable heat pump at only 10280 kg CO2 emission. With deep drill and large area wall- or flur heating to less than the half of this. But in this case, they would have also improved the heat insulation and so again halved the consumption.

An additional trick of the enemies of the heat pump is to prognose a more and more dirty electricity mix. But what all would be possilbe with all the natural gas and fuel oil burned in houses? It would be possible to produce compared to electric power from coal far more clean electric power. In the long run, it will come to the hydrogen economy. CCPP make electric power from hydrogen produced by the summer time overflow of solar electric power.



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