Introduction

The municipality of Kristianstad is working towards being a fossil free municipality and the district CHP-plant together with the district heating network will play an important part in for the success of this system.

Objectives and target audience

The municipality of Kristianstad has an outspoken aim of becoming fossil fuel free.  An important part within this work is to extend the district heating network, and to provide the CHP-plant with fossil free fuel.

C4 Energi has an extension plan to allow for the implementation of new facilities and housing within the municipality to be included within the district heating system.  A new 25MW bio-fuelled boiler will also be installed to meet the increased demand generated.

The target is to connect 400 single-family houses per year by 2010 and there after, 100 single-family houses by 2012.

Financial Resources and Partners involved

Kristainstad municipality is ownership of C4 Energi, which is the company that is currently governs the CHP-plant and district heating network.  Since the expansion of the net and due to the installation of the CHP-plant being having being since 1980, it is hard to determine the exact figure of the budget.

Process

The CHP-plant Allöverket was installed in 1994. The CHP-plant consists of a bio fuelled boiler of 50 MW.

The boiler is fuelled by biochips and biogas.

The biochips are supplied by timber cuttings, local sawmills, and wood industries.  The biogas is supplied by a decomposing-facility called Karpalund and other well known landfills.

The district heating net is always constantly being extended due to inclusion of new facilities and houses being part of the net.

Results

The results show (of 2008):-

• 99% of the fuels needed to produce heat in the district heating net is produced by renewable energy generation;
• Heat from district heating has replaced 350 000 m3 of oil since 1990;
• 1,750 facilities and houses are connected to the district heating system;
• 286 GWh heat energy is sold to customers;
  51 GWh electricity is produced from renewable energy generation.

Critical Success Factors / Challenges

Success factors are:-

• The production of  high grade renewable generation work;
• Brave decision makers;
• A strategic energy plan;
• Skilful technicians.