kraftwerk - CHP units and heat pumps

CHP unit and heat pump

CHP unit and heat pumps offer a variety of advantages, which complement each other perfectly to provide a sustainable energy supply. As soon as there is sufficient renewable electricity available, it should be used as efficiently as possible for heat supply. Heat pumps will become a cornerstone in this approach.

At times when wind and photovoltaic power generation are insufficient, combined heat and power (CHP) systems provide flexible power supply. In addition to electricity, they also produce useful heat, allowing heat pumps to operate at reduced capacity. The combination of these technologies in a heating plant simultaneously reduces and generates the power requirements within the building or network while ensuring maximum efficiency.

This flexibility not only benefits the network operator in the long term but also directly reduces energy costs and improves the operator’s supply reliability.

0 20 40 60 80 100 120 2,5 3,0 3,5 4,0 Dec. Nov. Oct. Sept. Aug. July June May April March Feb. Jan. Energy (Mwh) CHP unit heat generation CHP unit electricity generation COP Boiler heat generation Photovoltaics electricity generation Heat pump heat generation Heat pump coefficient of performance

Basic operation of a combination between CHP units and heat pumps

The image shows an example of a monthly balance for the system combination. During the summer months, the heat pump operates as the primary heat generator, achieving a high coefficient of performance with partial utilisation of photovoltaic electricity. During the winter months, it is the CHP unit which mainly operates, providing electricity for the building/network and the heat pump, which primarily generates peak loads.

Your benefits as an operator

Combined heat and power unit

  • Financial added value thanks to efficient electricity generation
  • Provision of high supply line temperatures and wide spreads without reductions in efficiency
  • Heat pump replaced when there is low coefficient of performance and electricity demand in the building/network
  • Efficient bridging of heat generation when the heat pump is shut down in the network
  • Operation with renewable gases delivers efficient, climate-neutral electricity and heat supply

Heat pump

  • Partial integration of locally generated, cost-effective photovoltaic electricity into the heat supply
  • Low operating costs in times of high coefficients of performance
  • 100 percent renewable heat when using renewable energy electricity or electricity from own photovoltaic system
  • Compliance with national statutory requirements, such as the Buildings Energy Act in Germany

Using renewable electricity, generating residual load – both easy and efficient with a heat pump and CHP unit.

0 € 500.000 € 1.000.000 € 1.500.000 € CHP unit + air/water heat pump + gas-fred condensing boiler Air/water heat pump + gas-fred condensing boiler Air/water heat pump, single mode Gas-fred condensing boiler with 65% renewable gases Investment costs Energy and operating costs (over 10 years)

Cost-effective together

The financial viability of an energy concept is one of the main drivers behind investment decisions. The use of combined heat and power units and heat pumps can significantly reduce the ongoing operating costs of heat and electricity supply. Combining these technologies also ensures national statutory requirements such as the Building Energy Act in Germany can be met efficiently.

Planning

We will provide you with development and simulation of integral energy systems as a service.

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Heat pumps

We have heat pumps compatible with our CHP services in our range. They are continuously variable and already use the environmentally friendly refrigerant propane.

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