Optimizing Regional Rooftop Rainwater Harvesting Systems
Will rooftop rainwater be enough for your household? Set your household size, roof area, and tank capacity to explore how much water rooftop rainwater harvesting could realistically provide.
For each combination, the tool simulates how much rainwater is collected, how much your household can use, how much is lost as overflow, and how many days per month the tank runs dry under different climate scenarios.
Compare scenarios to see how a changing climate could affect the reliability of rooftop rainwater as a safe and sustainable water source for your home.
Select household and system characteristics
Station (region)
Household size (number of people)
Roof area (m²)
Tank capacity (L)
Climate scenario
Select a station, household size, roof area, tank capacity, and scenario to view the seasonal simulation.