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1 million consumers benefit from smart energy solution in Greater Copenhagen
The 180 km hot water transmission system is owned by CTR, VEKS and Vestforbrænding and supplies heat to 21 distribution networks in 21 local authorities. Besides that, HOFOR operates a steam system covering 20% of the system. This steam system is currently being replaced by hot water district heating. The conversion is expected to be completed 2022.
CTR is owned by Copenhagen, Frederiksberg, Tårnby, Gladsaxe and Gentofte municipalities.
VEKS is owned by Albertslund, Brøndby, Glostrup, Greve, Hvidovre, Høje-Taastrup, Ishøj, Køge, Roskilde, Rødovre, Solrød and Vallensbæk municipalities.
The waste management company Vestforbrænding supplies heat in Herlev,Ballerup, Gladsaxe, Furesø and Lyngby-Taarbæk municipalities. Moreover Vestforbrænding is interconnected with the heat transmission system, which interconnects Hillerød and Farum-Værløse in Furesø Municipality. In accordance with a project approved by Lyngby-Taarbæk municipality in 2017, the system will moreover be interconnected with the Technical Univeristy, DTU, and the district heating company Holte Fjernvarme in Rudersdal Municipality. Thereby there will be a small interconnection with the heat transmmission system, which interconnect waste incinerator and a new biomass fuelled CHP plant owned by Norfors and the Energy utility of Elsinore.
All distribution companies are owned either by the municipalities or the consumers, with the aim to maximize the technical, institutional and financial efficiency to reduce the heat prices. (profit to consumers which are the real owners in accordance with the Heat Supply Act). All investments has since 1979 been financed 100% by the most competitive loans on the world market.
The total heated floor area which is supplied from the interconnected system is 75 mio. m2 according to the updated building register and the annual heat sale is 30,000 TJ. The average emission is 100 kgCO2/MWh.
The 21 local authorities are responsible for the least cost heat supply planning of the system in accordance with the Heat Supply Act.
In the two largest municipalities Copenhagen and Frederiksberg, 99% of all buildings are supplied with district heating, which improves the efficiency and is the most important instrument to be independant of fossil fuels.
Optimized to meet climate objectives
The system is further developed and optimized to meet climate objectives by connecting districts with existing and new buildings to the grid and by shifting to more renewable energy. A heat market group formed by CTR, VEKS and HOFOR optimizes the heat production from:
- 2 large biomass fuelled CHP plants: Amagerværket and Avedøreværket
- 1 biomass fuelled industrial CHP plant in Køge, owned by VEKS
- 3 waste-to-energy CHP plants: ARC, Vestforbrænding and KARA/NOVEREN
- geothermal heat and surplus heat
- Sludge incinerators at two waste water treatment plants owned by Biofos
- 30 MW gas fuelled combined Cycle CHP plant at DTU owned by DC, mainly operating as peak capacity in the power system
- 5 MW waste heat from the pectine factory CPKelco
- several heat pumps for cogeneration of heating and cooling
- Electric boilers
- 50 gas/oil fuelled peak load and spare capacity boilers
There are in total 3 x 24,000 m3 heat storage tanks connected directly to the 25 bar heat transmission system with pressuresections. These tanks are important for the optimization of the operation.
The market share of distric cooling is increasing significantly in many districts benefitting from economy of scale and symbiosis with district heating, not least co-generation of district heating and cooling.
Additional heat storage capacity is in the pipe line, including ATES systems and heat storage pits.
The Greater Copanhagen district heating system is the first of 8 selected case studies on efficient DH&C in an EU JRC report, january 2017, see attached file.
Ramboll has from 1970 provided a wide range of consultancy services to most of the energy companies and authorities in the region, e.g.:
- Planning of heat supply for most of the municipalities.
- Planning, design, and implementation of the heat transmission networks for CTR and Vestforbrænding. This is more than 10 distribution networks incl. Frederiksberg Forsyning and the three waste to energy plants, Vestforbrænding, ARC and KARA/NOVEREN.
- Planning and design of Avedøreværket and Amargerværket including 3 x 24,000 m3 heat storage tanks.
- Rehabilitation of old district heating networks for several of the district heating companies.
- Analysing stationary and pressure transient hydraulic in the whole transmission system.
- Planning and design of district cooling systems
The system is probably the most popular show case in the Danish Energy sector and attracts high level study tour groups from all over the world.
You are always welcome to visit Ramboll and learn about the legal, institutional, financial and technial performance.
Contributors to this solution
Amager Resource Centre
Every day of the year we relieve the inhabitants and companies of the five capital municipalities Dragør, Frederiksberg, Hvidovre, Copenhagen and Tårnby of their waste and supply heat and electricity to their households in return. In total this amounts to 435,000 tons of waste which is converted into electricity and
Danish Board of District Heating (DBDH is a private organisation representing the leading actors of the Danish district energy sector, including: Heat and combined heat and power production companies and waste incineration companies Heat transmission and distribution companies Private consulting companies, R&D institutions and training institutes Manufacturing companies
Copenhagen Capacity is the official inward investment agency of Greater Copenhagen. Our mission is to promote the region internationally with the aim of attracting and maintaining foreign companies. The services include business information, access to an extensive network of expert consultants, lawyers, public authorities and businesses.
We act as
Frederiksberg Forsyning is a multi supply utility in the heart of Copenhagen, supplying 110,000 customers with district heating , water and city gas. The utility is also maintaing the sewage system in the municipality of Frederiksberg.
The municipality of Frederiksberg is the owner of the company.
The company shares a common address
The City of Frederiksberg is a modern, metropolitan local authority with the characteristics of a major city. First and foremost, however, is a residential area with all service provisions included. The many parks and leisure facilities in the city provide the Capital with a green oasis characterised by a special