From 2013 to 2023, the self-water supply to the industry and construction sector in Belgium has exhibited a downward trend, declining from 4.15 billion cubic meters to 3.17 billion cubic meters. Despite some year-to-year fluctuations, the overall trajectory has been negative. The greatest decline occurred between 2019 and 2020 when the volume dropped by 22.12%. Over the past five years (2019-2023), the compound annual growth rate (CAGR) stabilized at -1.19%, indicating a gradual decrease in water supply volumes.

Looking ahead, the forecast from 2024 suggests a continuation of this shrinking trend, with a projected decline to 2.68 billion cubic meters by 2028. The forecasted five-year CAGR is -2.7%, implying a total reduction of approximately 12.78% over this period.

Future trends to watch:

Efficiency measures in industrial water use might slow the decline.
Environmental regulations could enforce further reductions in water consumption.
Technological advancements could impact water usage patterns positively or negatively.