Production of secondary energy

Now we have reached the point in energy flows, where we convert the primary energy to the much more manageable secondary energy.

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Production of secondary energy

We convert a large part to the extracted primary energy to other forms of energy we find it easier to transport and handle. These forms of energy we generally call "secondary energy".

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Production of secondary energy

The secondary energy is produced by

  • We produce electricity in thermal power plants, nuclear power plants, hydro power plants, in PV systems, in wind turbines, fuel cells, in wave power, tidal plant
  • We produce electricity and heat in combined operation of thermal power plants and fuel cells
  • We produce district heating in thermal boilers, solar heating systems and large heat pump systems
  • We produce oil products in oil refineries
  • We have slowly started to produce synthetic fuels as hydrogen, methanol and ethanol in chemical plants
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Production of secondary energy

Here you can see how we subdivide the secondary forms of energy

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Production of secondary energy

You can on Energy-Together map see an example of how much transportable primary energy in Denmark are converted into secondary energy on an annual basis

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Production of primary energy

In this place on the Energy-Together map, local primary energy (solar, wind, etc.) is converted to secondary energy. Here we place the part of the local energy, which is converted into grid-connected installations. A photovoltaic system on a house that is connected to the grid, is located here along with for example a solar power systems that are connected to district heating systems.

Power generation equipment that is not grid-connected, and individual heat production is placed on the Energy-Together map in the last part of the flows where the energy is converted to energy services.

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Production of secondary energy

Here you can see the local forms of energy that is converted into secondary energy and energy services

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Production of secondary energy

The decision chain for the conversion of primary energy into secondary energy is the same as you've seen earlier.

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Production of secondary energy

Secondary energy

When you on the Energy-Together map opens the box where the primary energy is converted into secondary energy, you can see how the production of electricity, heat and oil products are subdivided. When you have to understand the logic of this subdivision, you have to look at the decision chain and the laws that govern the various ways to convert primary energy into secondary energy.

The subdivision is not specific to the technologies, but by the way the system is organized and managed. The decision chain is therefore an important part of the Energy-Together map. The closer we get to the consumption stage, where the energy is converted to energy services, the more the subdivision is guided by social science relationship

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Production of secondary energy

Here is the part of the Energy-Together map that covers the extraction, transport and conversion of primary energy into secondary energy

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Questions regarding Ambient Heat

What is Ambient Heat?

Vælg det rigtige svar

  • Heat coming for houses
  • Heat from solar collectors
  • Heat fed into heat pumps


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