Recent developments show a tendency towards lower system temperatures for district heating projects in the Netherlands. Lower system temperatures change the system conditions which increase the need for asset management and correct water treatment.
The housing market in the Netherlands is booming at the moment, but newly built houses currently have reduced their energy need, so district heating is a difficult business case for these kinds of projects. Since July 2018, there is however no longer an obligation to connect to the natural gas grid. This means that for new building projects, gas is no longer the default choice.
This leads to a tendency towards lower system temperatures, such as the project “Stadsoevers” in the city of Roosendaal. Waste heat from the local waste incineration plant is used for heating at a low temperature of 40 °C, in combination with heat pumps producing hot domestic water.
EUROWATER has an article in the latest issue of Hot|Cool Magazine (Open in new window), where we elaborate on how lowering of system temperatures, causes new system conditions for district heating.