Answer extracted from the The Future of Utilities Podcast — listen to the full episode below.
How can water utilities leverage behavioral science to improve customer engagement beyond traditional awareness campaigns?
Water utilities must abandon one-size-fits-all awareness campaigns and instead tailor behavioral interventions through focus groups, literature review, and rigorous testing. Traditional awareness alone fails because it assumes rational customers, ignoring information gaps and attribution bias. Trust-building works best when companies demonstrate their own water-saving efforts, creating reciprocal relationships that genuinely shift behavior.
Why awareness campaigns alone fall short
The problem with conventional water efficiency messaging is fundamental: it assumes customers make decisions rationally, weighing costs and benefits in isolation. In reality, people operate within complex environmental, social, and psychological constraints that bypass conscious choice. Someone might abandon a water audit form because it feels too complex, or continue using an inefficient dishwasher despite knowing a replacement would save money long-term.
As Arminak Antonian explains in the episode, "Awareness raising alone is not really going to do the job because it assumes a rational model of the customer." These involuntary factors—attribution bias, cognitive load, salience bias—shape behavior far more than factual messaging ever can.
Building trust through reciprocal relationships
The most effective approach is demonstrating the water company's own conservation commitment first. When Thames Water communicated its internal water-saving efforts alongside customer-facing campaigns, engagement improved significantly. This reciprocity principle works because customers are more likely to invest effort in conservation when they perceive the utility as equally committed to the challenge.
Testing with diverse customer groups reveals which behavioral levers matter most. Thames Water's team tested different motivational angles across 400,000 smart-metered households, discovering that money motivation achieved the highest completion rates for online water audits, followed by environmental messaging. This kind of targeted testing—driven by behavioral science rather than assumptions—transforms engagement from static campaigns into dynamic, evidence-backed interventions.
"Awareness raising alone is not really going to do the job because it assumes a rational model of the customer."
Arminak Antonian — Head of Behavioral Economics at Thames Water. Antonian holds a PhD in economics and brings both academic rigor and practical application to behavioral challenges. His research spans health behaviors, tax compliance, and environmental interventions across multiple countries. Before joining Thames Water, he served as an economics professor at Cardiff Business School and previously held faculty positions in China, combining international research experience with real-world utility sector expertise.
The behavioral economics team at Thames Water—established roughly 2-3 years ago—conducts brand tracking surveys twice yearly to measure how interventions shift customer attitudes and behavior over time. This systematic measurement reveals exactly which behavioral nudges move the needle, allowing utilities to refine campaigns with each iteration rather than repeating ineffective messaging.
The deeper insight is that behavioral science requires customization, not scaling. What works for one customer segment may backfire for another. A busy professional responds differently to a complex water audit form than a retiree with time. A household motivated by cost savings needs different framing than one driven by environmental identity. Utilities that invest in understanding their customer base—through focus groups, behavioral testing, and continuous measurement—build genuine engagement. Those that rely on generic awareness campaigns miss the core truth: people are not rational actors waiting for information. They are creatures of habit, emotion, and social context. Water efficiency campaigns succeed only when they address behavior as it actually occurs.
See also
What are the key principles of behavioral economics and how do they differ from traditional economic assumptions?
Traditional economics assumes individuals are rational and maximize utility, but in reality decisions are affected by environmental, social, and psychological factors that operate involuntarily rather than by conscious choice.
What role should gas networks play in managing peak demand in future energy systems?
Gas networks do an incredible job today in managing real peaks in demand, and this capability should remain central to future energy systems rather than being phased out.
How should policymakers balance decarbonization, affordability, and energy security in the energy transition?
Energy policy should not focus solely on decarbonization but rather on the trilemma of decarbonization, affordability, and security, requiring integrated solutions that address all three dimensions.
Key takeaways
- Awareness campaigns fail because they assume rational decision-making; behavioral interventions must account for real psychological and environmental constraints.
- Test interventions with diverse customer focus groups rather than assuming one message fits all audiences.
- Build reciprocal trust by demonstrating the utility's own water conservation commitment alongside customer engagement efforts.
- Use continuous measurement and A/B testing to identify which behavioral nudges—financial, environmental, or social—actually drive engagement in your customer base.