30 000 m2, and a 110 000 m3 heat storage. Overall, the district heating network in Gram now covers about 60% of its heat with solar energy.After lunch at the castle of Gram, Peter Eijbergen and Christian Stadler from the SDH-manufacturer Arcon-Sunmark, and the consultants Per Alex Sørensen (from PlanEnergi) and Dr. Matthias Sandrock (Hamburg Institut) discussed with the participants the experience and challenges of realising SDH projects in the German market. Technical, legal and financial barriers and solutions to overcome them were analysed – as well as the issue of public acceptance, planning and space availability in a densely populated metropolitan region.
On the way back to Hamburg, the group stopped at Vojens to visit another SDH plant – one of the largest plants in Denmark with
71 500 m2 solar thermal collectors and a seasonal heat storage of 200 000 m3.
The feedback of the participants was very positive: Impressed by the Danish projects and well informed by the SDHp2m partners, participants stated their motivation to bring equivalent projects forward in the Hamburg region.