Warmth straight from the heart of Indaver

Could you soon be heating your house using steam generated by Indaver? Now that the world is one climate change agreement richer, the search for alternatives to fossil fuels has become even more pressing. One such alternative source is the heat that Indaver produces during the thermal treatment of waste.

How does Indaver produce heat?

Indaver has thermal treatment plants in Doel and Antwerp, that process waste from both its businesses and local authority customers. The energy that is released during the combustion process is converted into steam. Indaver then uses that steam partly for its own processes. A turbine converts part of the steam into electricity which Indaver either uses itself or delivers to the grid. When working at full capacity, the Antwerp and Doel sites produce the equivalent of 191,000 families’ energy consumption. Indaver is constantly looking for new applications for the steam it generates. 

Why is this called ‘green heat’?

Heating or steam networks such as those at Indaver/SLECO in Waaslandhaven are a green solution for heating buildings and houses and for businesses’ production processes. In Doel, 50% of the heat is generated due to the portion of renewable organic material in the waste. These networks are therefore an energy-efficient and sustainable alternative to heating using fossil fuels.

Where does the heat go?

At the moment Indaver in Doel already supplies steam for use in its neighbouring company Ineos Phenol’s processes. This steam network, which is currently in its infancy, will have to be fully grown by 2017. Furthermore, Indaver is one of the partners for the ECLUSE heating network that is planned for Waaslandhaven. This network, which will start at the Indaver/SLECO waste-to-energy facility in Doel, will supply heat to a number of businesses in the area. 

Is the heat supply restricted to Doel?

No, at the Antwerp site Indaver also supplies excess heat into an energy cluster with Amoras, the dredging sludge dewatering project for the Port of Antwerp. Furthermore, there are a number of heating-supply projects that are still in the research phase. The Port of Antwerp is developing zones on both the left bank and the right bank for logistics activities that use different types of transport – multimodal transport. One of these is the Logistiek Park Schijns (Schijns Logistics Park), which is currently being planned right next to the Amoras site. It will be possible to supply low-temperature heat to this project by 2018. 

Is the heat only going to businesses?

No. The intermunicipal partnership IVAGO, which Indaver is involved in through its participation in the private partner ECOV, supplies green heat to Ghent University Hospital. IVAGO processes 100,000 tons of combustible household waste each year and fulfils its own electricity and heating needs as well as supplying electricity to the national grid. Heat is supplied to Ghent University Hospital via an underground steam pipe. A second project to supply heating to the neighbouring company Eastman, is currently being further developed

Is the heat that comes from Indaver also used to heat people’s homes?

Indeed it is, if you live in Antwerp. Indaver is currently researching how it can make use of the excess heat from its Antwerp site for residential areas, so-called district heating. In conjunction with the neighbouring local authorities and the City of Antwerp, Indaver is looking into the possibilities of providing a sustainable heat supply for domestic heating. It is also putting its knowledge of sustainable energy recovery to good use to help Antwerp City Council install a heating network for the ‘Nieuw Zuid’ sustainable neighbourhood. As an expert Indaver is a member of the warmte@zuid consortium that is constructing this heating network. Indaver sites also supply energy for domestic heating in Germany and the Netherlands.

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