A new report reveals that the majority of data centres in the Netherlands operate without publicly disclosing their environmental impact. This lack of transparency extends to crucial data regarding water and electricity consumption, hindering efforts to assess the industry's sustainability. The concealed data makes it difficult to understand the collective strain these facilities place on the country’s resources. Experts suggest increased regulation is needed to compel data centres in the Netherlands to report such metrics. This opacity prevents informed public debate and effective policy-making surrounding data centre sustainability. The report highlights a significant gap in accountability within a rapidly growing sector vital to the Dutch digital economy. Greater transparency is crucial for managing the environmental footprint of these energy-intensive operations in the Netherlands.