District heating with 90% Renewable Energy

Stikkord: Stasjonær energi i bygg, Energiforsyning, Energikilder, Drammen

Drammen plans a heat pump system based on seawater. The expectations are that this system will produce energy equalling the energy consumption of 6000 average households.

Drammen plans a heat pump system based on seawater. The expectations are that this system will produce energy equalling the energy consumption of 6000 average households.

In Drammen, a district heating facility will be expanded with a heat pump central from 2010. The heat pump central will be situated on Brakerøya. The facility will use seawater from the Drammen Fjord as a heating source.

90% Renewable Energy

On a long-term basis (ca 2020) the various heating sources are estimated to contribute:

  • Heat pump, ca 80 GWh
  • Biofuel, ca 25 GWh
  • Other (gas or oil), ca 10 GWh

It is expected that the District heating Facility will produce 115 GWh around 2020, of which 90% will be renewable energy.

115 GWh equals the combined energy use of 6000 houses with «normal» energy consumption.

Further plans for the expansion of the district heating system are discussed, including an expansion into neighbouring municipalities.

District heating was chosen primarily a preparation for future energy and environmental challenges. District heating also reduced the need for development of the electricity supply in Drammen.

Residue from the Forest Industry

In 2002 Drammen Fjernvarme (Drammen District heating), opened a 8 MW bio fuel central in Sundland. This central uses mainly wood briquettes made of wood residue from the forest industry. In periods with very cold weather alternative heating sources, such as oil and electricity, are used.

Bio Fuel in Fjell

The suburb of Fjell, consisting mainly of 70’s tower block’s, has its own district heating facility. Since 2002, 70 % of the 23 GWh the suburb needs annually for heating, has been provided by a bio fuel facility. 1500 flats, a school and a minor shopping centre are heated by this facility.

Landfill Gas from the Waste Dump in Lindum

In the suburb of Åskollen, a new residential area (Kniveåsen) is being developed, which will also have district heating. In this facility, the source is landfill gas, collected at the waste dump in Lindum, 1 km away. This district heating project is rare, because the area consists mainly of detached houses and terraced houses. Nevertheless, the direct regulations from the Municipality and the desire to exploit the landfill gas in Lindum, made district heating a reality.

Drammen Fjernvarme KS (Drammen District heating KS)

Drammen Fjernvarme KS was established in 1999, and is owned by Energiselskapet Buskerud (Buskerud Energy Company) and Fortum Holding. The same year Drammen Municipality decided to make connection to the district heating system mandatory in the concession area. This means that every new building larger than 1000 m2 has to be built with a water-based heating system connected to the district heating system. Today the area that receives district heating has been expanded, and includes most of central Drammen.