This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No 691624
On 28 September 2012, solar heating experts, planners, and potential customers met in Breadstrup (DK), for a workshop on solar district heating and a tour around the Breadstrup plant. The conference 'Become Part of a Danish Success Story' took place in the framework of the EU project SDHplus.
'What we need next are case studies for innovative business models and integrations', Thomas Pauschinger, Project Coordinator at German research centre Solites, says. Most of the countries which have already participated in the SDHtake-off project are trying to integrate solar thermal into Combined Heat and Power (CHP) plants. About half of the 45 businesses which attended the conference are directly involved in the EU project.
With a collector area of 18600 m2, the Breadstrup solar district heating plant is the second largest in Denmark and the first which integrates solar thermal into a CHP plant. It now combines a heat pump, a borehole storage and an electric boiler. When electric power is needed, the CHP plant is run. When there is too much electricity in the grid, the heat pump and electric boiler convert it into heat. Fully integrated poly-generation plants as this one will be needed more and more during the expansion of wind energy projects in Denmark. As soon as 2020, 50 % of Denmark’s electricity is thought to be generated by wind energy. This means standstill for the CHP plants whenever there is a surplus of electricity and thermal storage will be needed.
In the afternoon of the first conference day, the participants split up in working groups to discuss key figures of several possible real-life projects they provided. Although time was limited and there was not much room for discussion, these examples showed that there are several different options besides the Danish smart grid in which solar district heating makes sense:
There had also been a project meeting one day before the conference. Most of this meeting had been devoted to discussing business models for green heat. The options spanned from cooperations (owned by the customers as has been the case with most Danish plants) to new models, for example, which feed solar heat from the customers’ roof back into the grid.
At the end of the workshop, Pauschinger summed up the days as follows: 'Everybody was very motivated. Many of those who are not part of the EU project have already participated in the conference for the second or third time. This shows that there is serious interest in the topic. I am convinced that at least some of the projects presented here at the workshop will become case studies of SDHplus and that some of these will be built later on.'
Author: Eva Augsten / www.evaaugsten.de
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