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Photo: ARGO utilizes residual waste from 16 municipalities on Zealand, businesses, and abroad. ARGO's combined heat and power plant in Roskilde record-high district heating production in 2025, with district heating equivalent to the annual consumption of 57,885 households and electricity equivalent to the annual electricity consumption of approximately 75,475 households.
At the same time, the liberalization of the waste sector has been the first major test of the market, and here ARGO has maintained and expanded its position through successful tenders and stable business volumes. On Håndværkervej in Roskilde , ARGO Roskilde residual waste in two furnace lines to produce district heating and electricity.
Jeppe Danø, Director of ARGO, says:
“2025 was the first year of liberalization in the waste sector, and the market became truly competitive. We have regained contracts from all nine owner municipalities and won contracts in seven additional municipalities on Zealand. At the same time, our commercial volumes remain stable. This confirms that ARGO delivers a competitive solution with high delivery reliability and a clear focus on environmentally responsible operations."
The figures also show an increase in district heating production from 2024, when ARGO produced district heating equivalent to the annual consumption of 55,870 households.
We received over 358,000 tonnes in 2025.
The large amounts of district heating and electricity originate from 358,757 tonnes that ARGO received at the CHP plant in 2025. We receive residual waste from a total of 16 municipalities on Zealand, from businesses, and from abroad.
"We have operated with high availability on both furnace lines in 2025 and had operations that have been largely planned and predictable. This is the main reason why we delivered record-high district heating production and the second-highest electricity production since the Energy Tower came into operation in 2013," says Klaus W. Hansen, Deputy Director at ARGO.
At ARGO's plant in Roskilde , residual waste Roskilde in a combined heat and power plant that supplies both district heating and electricity. Despite ambitions for circularity and increased recycling, there is still waste that cannot be recycled in practice. This includes composite materials, plastics with no real recycling options, and contaminated fractions.
Here, the options are limited: landfill or energy recovery. In Denmark, energy recovery is a widespread solution because the waste can be treated in a controlled manner with high purification, while the energy is used for both electricity and district heating. This results in high overall energy recovery because the heat can be sold to the district heating network.
The Energy Tower in Roskilde two furnace lines that produce district heating and electricity.
Note: In 2025, the CHP plant produced 3,073,675 GJ of district heating and 226,424 MWh of electricity. To convert district heating and electricity to households, an average heat consumption of 53.1 GJ per household and an electricity consumption of 3,000 kWh per household have been used, cf. the Danish Energy Agency's "Energy Statistics 2024, Denmark's production and consumption of energy" (pages 42 and 43).