Economics of cloudburst and stormwater management in Copenhagen

The report analyses the socio-economic of cloudburst in Copenhagen. The assessment is intended to show whether cloudburst and stormwater management can payoff for society as a whole. The calculation thus shows what it costs society to protect Copenhagen against high-intensity rains. It is consequently a more extensive assessment than the actual construction cost estimate. Briefly, the assessment shows that under current conditions an overall socio-economic surplus of DKK 5bn over 100 years from adopting the combined solution for the management of heavy rains in Copenhagen, compared with a scenario in which the City of Copenhagen does nothing can be expected.