STORMWATER ATTENUATION & RAINWATER HARVESTING

Expensive storm attenuation infrastructure is now installed on practically all new developments. This regularly takes the form of large tanks or crates systems. Unbelievably, these structures lie empty more than 99% of the time.


StormHarvester enables attenuation structures to also be used for rainwater harvesting. Refined through 3 years of R&D and water authority approved, our smart technology continually monitors and optimises water levels within your attenuation system. By maximising available volumes of reusable water, StormHarvester ensures attenuation tanks contribute far more than just flood prevention to their developments.


Summary Benefits…


• Reduce Cost of Rainwater Harvesting Systems by up to 80%
• Slash payback time on Rainwater Harvesting Systems to 2-5 years
• Reduce drainage footprint for sites with Rainwater Harvesting and Attenuation
• Reduced storm loading on WWTWs in combined systems
• Provide real time alerts if attenuation outlets partially or fully block

Case Studies

Queens University, Belfast

•StormHarvester system installed on the David Keir building
•Tank water levels optimised to provide attenuation volume when required
•System provides a source of recycled water to the building

Shopping Centre Development

Development Requirements
Commercial development area 10,000m²
Attenuation volume required 324 m³
Rainwater Harvesting Volume Required 40,000L

Separate Storm Attenuation & Rainwater Harvesting Systems Cost
Cost of Crate Attenuation Installation £40,500
Cost of Rainwater Harvesting System £28,000
Total – Without StormHarvester £68,500

Total – With StormHarvester £48,500
Total Saving £20,000

Anaerobic Digestion Plant

Development Requirements
Commercial development area 22,000m²
Attenuation volume required 805 m³
Rainwater Harvesting Volume Required 750,000L

Separate Storm Attenuation & Rainwater Harvesting Systems Cost Cost of Crate Attenuation Installation £100,625
Cost of Rainwater Harvesting System £65,000
Total – Without StormHarvester £165,625

Total – With StormHarvester £108,625
Total Saving £57,000