Meanwhile in the UK, our Renescience waste-to-energy plant uses household waste to produce electricity and materials that can be used in manufacturing, construction, and land restoration.
Read on to find out more details about each of these plants.
Highly efficient electricity and district heating production
Location: Hvidovre municipality, south of Copenhagen
Power-generating capacity: 806 MW
Heat-generating capacity: 953 MJ/s
Main fuels: Sustainable wood pellets, straw
Secondary fuels: Natural gas, oil, coal (until 2023)
In operation since 1990
Biomass conversion: 2003 (Avedøre 2); 2016 (Avedøre 1)
The iconic heat and power station at Avedøre is one of the most efficient in the world, using up to 89 % of the energy in its fuel mix to produce heat and power for hundreds of thousands of Danish homes.
Location: Kalundborg, Zealand
Power-generating capacity: 26 MW
Heat-generating capacity: 125 MJ/s
Main fuels: Sustainable wood chips
In operation since 1959
Biomass conversion: 2019
Along with producing heat and power for tens of thousands of Danish homes, Asnæs heat and power station also provides steam to Novo Nordisk and Novozymes for use in manufacturing processes.
Location: West coast of Jutland
Power-generating capacity: 373 MW
Heat-generating capacity: 444 MJ/s
Main fuels: Coal, oil
In operation since: 1992
Ørsted’s heat and power station in Esbjerg is Ørsted’s only remaining coal-fired CHP and will close in 2024.
Location: Sydhavnen, Copenhagen
Power-generating capacity: 21 MW
Heat-generating capacity: 292 MJ/s
Fuel: Natural gas
In operation since: 1920
Converted from coal into natural gas in 1985
A part of the Copenhagen skyline for over a century, H.C. Ørsted heat and power station provides district heating for 25,000 households in the Danish capital. When it was built, it was the largest power station in Denmark.
Location: Central Jutland
Power-generating capacity: 88 MW
Heat-generating capacity: 191 MJ/s
Main fuels: Sustainable wood chips, sustainable wood pellets
Secondary fuel: Natural gas
In operation since: 1982
Biomass conversion: 2009
Herning heat and power station was rebuilt in 2009 to run on sustainably sourced biomass.
Location: Kolding Fjord, southern Jutland
Power-generating capacity: 390 MW
Heat-generating capacity: 579 MJ/s
Fuel: Sustainable wood chips
Secondary fuel: Natural gas
In operation since: 1951
Biomass conversion: 2017
Situated close to Ørsted’s office, Skærbæk heat and power plant provides sustainable district heating to 60,000 homes in the Triangle Region of Denmark.
Location: Aarhus municipality, east coast of Jutland
Power-generating capacity: 362 MW
Heat-generating capacity: 513 MJ/s
Fuel: Sustainable wood pellets
In operation since: 1968
Biomass conversion: 2016
Converted from coal to sustainable wood pellets, Studstrup heat and power plant is one of the largest biomass-fuelled power stations in the world, providing enough power and heat for hundreds of thousands of Danish homes.
Studstrup heat and power plant also consists of the coal-fired unit 4, which can generate 360 MW of electricity. On 1 October 2022, the Danish authorities decided to order Ørsted to resume operations of three of its power station units which use oil and coal as fuel, in order to ensure the security of the electricity supply in Denmark. Unit 4 at Studstrup is one of the units to resume operations until 30 June 2024.
Location: Nordhavn, Copenhagen
Heat-generating capacity: 256 MJ/s
Fuel: Natural gas
In operation since: 1953
Converted from coal into oil and gas in 1994, and to gas alone in 2014
Originally built to supplement heat and power production at H.C. Ørsted CHP on the other side of central Copenhagen, Svanemølle is now a heat plant which supplies around 6000 homes with district heating.
Location: Hornsherred, Zealand
Power-generating capacity: 404 MW
Fuels: Diesel, natural gas
In operation since: 1940
Kyndby power station provides emergency and peak-load electricity for the island of Zealand. That means it can be started up within minutes if there are problems elsewhere in the grid.
Kyndby power station also consists of the oil-fired unit 21, which can generate 260 MW of electricity. On 1 October 2022, the Danish authorities decided to order Ørsted to resume operations of three of its power station units which use oil and coal as fuel, in order to ensure the security of the electricity supply in Denmark. Unit 21 at Kyndby is one of the units to resume operations until 30 June 2024.
Location: Northwich, Cheshire, northwest England
Power-generating capacity: 3 MW
Waste-processing capacity: 80,000 tonnes per year
Materials produced: recycled metals and plastics, inerts and gravel, digestate
In operation since: 2020
The Northwich plant is the first commercial-size facility using Renescience technology to sort and process waste. It serves as a prototype which we’ll learn from in the development of similar future plants.