Nature & activity
Nature is the most important source of our Earth. We must treat it with respect. What we extract from nature should be used properly and if possible, returned.
The considerable agricultural activity in Twente has to deal with increasingly strict rules. Governments have to meet sustainability objectives. These are problems for which Twence, together with partners, seeks the right balance. Thus, together with livestock farmers we provide a solution for the manure issue, and we use increasingly more biomass (natural mass) and even the sun to generate energy.
The tightened laws and regulations concerning manure processing call for alternative processing methods. Twence intends building a large-scale manure valorisation plant in mid-2017 to process 250,000 tonnes of manure.
In building a manure valorisation plant, Twence will help the agricultural sector in the region to establish sustainable business practices, but also on a financial level. This contributes to preserving employment in the region. It also ties in seamlessly with our mission to recover raw materials and put them back in the cycle.
Manure contains phosphate, nitrogen and potassium; raw materials that are essential to everything that grows and flourishes. Also to food crops. The surplus of manure in the Netherlands has resulted in excessive amounts of phosphate in the soil. It leaches into the groundwater and can cause the undesirable growth of algae and plant species. The plant we want to build at Elhorst-Vloedbelt will convert one hundred percent waste into green electricity and one hundred percent valuable reusable materials.
Click here for the file on manure valorisation.
Twence has been investing for years now in increasing the production of renewable energy. This translates into a continuously rising yield.
Bioenergy is energy generated from organic material (biomass). Twence has opted expressly for processing organic waste material and therefore does not make use of biomass which is specially cultivated for this purpose and thus competes with agricultural land for the food chain.
Organic waste is converted by bacteria into biogas in anaerobic digestion reactors. We use the biogas to produce renewable heat and electricity. We mix the residue of the anaerobic digestion process with other organic waste and then compost it. Digestible organic material is thus put to good use twice in a row.
We convert waste wood and other non-renewable organic waste into renewable electricity in our biomass power plant. After this plant has been retrofitted, from 2018 we will also be able to use it to supply renewable heat for industrial applications and for district heating.
Waste from previous generations also still produces energy. By keeping our landfill gas plants in good condition, we continue to supply hundreds of households close to the landfill sites we manage – ’t Rikkerink (Ambt-Delden), Elhorst-Vloedbelt (Zenderen) and Boeldershoek (Hengelo) – with electricity and heat from landfill gas.
We are building solar parks so that we can make good use of the most direct source of energy we know: the sun. The first solar park is situated at our Boeldershoek site, on the border between Enschede and Hengelo. This park supplies energy from May 2017. It is the first large-scale energy project which does not use waste or biomass as raw material or fuel.
The solar projects are consistent with our strategy of generating more renewable energy from renewable sources.