Our MD visited the Hague for a one-day masterclass on low temperature heating and cooling networks. Presenters were from prestigious expert organisations such as Transport for London, Mijnwater BV and the Dutch government and local municipalities of the Hague and Rotterdam area. Best practices for the latest (fifth) generation of heat networks were shared, whereby high efficiencies are achieved through implementation of multi-scale and intern-seasonal thermal storage, including mine water thermal storage.