Indaver is continuously looking for new ways to use the energy it recovers in the thermal treatment of waste. One possibility is energy clusters, whereby Indaver’s plants supply heat to neighbouring companies and residential areas. Indaver considers green heat a lever to reduce energy consumption and CO2 emission and to increase the share of renewable energy. For this reason we are engaged in several 'green heat' projects.
Indaver supplies heat to Amoras
We have developed an energy cluster in Antwerp, where Indaver thermally treats industrial and hazardous waste. This energy cluster supplies residual heat and electricity to Amoras, the mechanical dewatering project of the Port of Antwerp. A pipeline for 90°C hot water was installed from Indaver Antwerp to the Amoras plant to heat the Amoras buildings, enabling the energy cluster to prevent the annual emission of 45,000 tonnes of CO2.
This project is now entering a new phase. The heat transport pipe to Amoras still has sufficient free capacity for other applications. Using an Organic Rankine Cycle (ORC), electricity can be generated with this additional capacity. This makes the Indaver plant in Antwerp more energy-efficient and limits the primary energy consumption of Amoras.
Doel: strategic project for heat recovery
Indaver and Sleco want to set up a heat network between their waste-to-energy plant in Doel and a number of chemical and logistical companies in the vicinity. At full capacity, this project can supply 10% of all the green heat produced in Flanders.
How does it work? The heat from the waste burnt in Indaver’s grate incinerators and Sleco’s fluidised bed incinerator is converted into steam and electricity. Part of the steam already goes directly to the neighbouring company, Ineos Phenol, via a steam pipeline. Using the heat cluster, the participating companies can use steam from Indaver and Sleco according to their needs.
This project can reduce the CO2 emission by a few million tonnes. The emission of NOX, SO2, CO and dust would be reduced in comparable quantities. In addition, 50% of the heat in the waste-to-energy plant is renewable, which means the energy provision also becomes more sustainable.
The Flemish authorities have shown their support for the development of this strategic network by investing €10,000,000 in this project.
Energy cluster in Antwerp-North
Indaver is also working on energy clusters from its plant in Antwerp, where industrial and hazardous waste is thermally treated. Indaver is investigating how it can put heat surpluses to beneficial use for industrial companies and residential areas (a.k.a. district heating) in Stabroek and Hoevenen, among others.