Effectiveness of Piggybacking Initiatives (2013)

This review carried out by Waterwise examines the effectiveness of water efficiency piggybacking initiatives and develops recommendations for enhancing their future uptake. Drawing on project reports of companies and interviews, the analysis considers achievements in terms of homes visited, devices installed and water saved. The study shows that where a piggybacking initiative is successful, it can provide extremely cost-efficient water savings for the water company while reaching higher numbers of households than regular water efficiency retrofit programmes. Challenges identified include lower installation rates than expected, lack of direct control over delivery and difficulty to measure water savings.