For the Nieuw-Prinsenland greenhouse horticulture area, a reservoir with a capacity of 3,000 cubic metres (3 million litres) per hectare is located in Dinteloord, which can collect a total of 17.5 million litres of rainwater. This is plenty in a season with normal temperatures but not enough in a hot year. In Nieuw-Prinsenland, this shortfall is made up by using water from the Suiker Unie sugar beet factory. Sugar beet consists of approximately 70% water, which is released when the beets are processed into sugar. This water used to be discharged, but now it is treated and stored in the ground ready for piping to the cultivation site.