|DK Monitoring

DK Monitoring

2018-11-27T09:28:11+00:00

DK Monitoring

Follow up on large scale heat storages in Denmark

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Subject

  • Solar thermal energy
  • Storage
  • Energy supply
  • District heating
  • Energy concept

Task

  • Consulting
  • Technology transfer
  • Knowledge transfer
  • Development
  • Research

Funding

  • Public funds

Period

06/2014 – 06/2018 (4 years)

Budget

Total budget: 4.4 m. EUR
Funding: 2.9 m. EUR

Description

Long term heat storages are important in the future energy system in Denmark. From 2011 to 2013 three large long term storages has been implemented in Brædstrup (borehole storage), Marstal (pit heat storage) and Dronninglund (pit heat storage) connected to large scale solar heat plants and heat pumps for district heating. The monitoring programs for these storages ended when the projects were finalized. But long term heat storages change performance the first years because the surrounding soil is heated up. Therefore there is a need to continue the monitoring programmes. This project has as purpose to secure a continuation of the monitoring programmes and to analyse and publish the results. Beside the project includes tests and measures that can support future storage projects. Mainly the following topics will be investigated:

  • Corrosion in in- and outlet pipes
  • Life time of liner materials
  • Durability of the insulation material in the floating lid constructions

Long term heat storages can make the future district heating systems flexible, so that they can integrate fluctuating power production. In Denmark the future market is estimated to 5 mio. m³ water storages. Outside Denmark similar systems are developed. For instance a resent German study has showed a marked of 15 million m³ water storages and China has showed beginning interest for the technology.

Client

Danish Energy Agency – Energy Technology Development and Demonstration Programme (EUDP)

Partner

  • Steinbeis Forschungsinstitut Solites (DE)
  • PlanEnergi (DK)
  • Brædstrup Fjernvarme (DK)
  • Marstal Fjernvarme (DK)
  • Dronninglund Fjernvarme (DK)
  • VIA University College (DK)
  • DTU (DK)

Aim

The purpose of the project is to follow the performance of two pit heat storages and one borehole storage implemented during the period from 2011 to 2013 in Denmark. In the project monitoring results and experiences from operation of the storages until 2018 will be analyzed and published.

Implementation

Results

Monitoring and evaluation of three danish pilot plants for solar district heating with seasonal thermal energy storage

Downloads and links
www.solarmarstal.dk
www.sunstore4.eu
www.braedstrup-fjernvarme.dk
www.drlund-fjernvarme.dk

Contact
Thomas Schmidt
schmidt@solites.de

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