en.Wedoany.com Reported - UK startup Rheya Labs has developed a dedicated backup battery for sewage pumping stations, and the solution has been shortlisted for the final of the Water Discovery Challenge, worth £7.5 million, organized by the UK water regulator Ofwat.

Failure of sewage pumping stations during power outages is a major cause of sewage pollution in UK rivers and roads. Rheya Labs' battery solution not only provides instant backup power but also integrates predictive software capable of detecting potential faults before a leak occurs.

Rheya Labs is among the 20 finalists of the Water Innovation Fund competition, with each finalist receiving up to £100,000 in seed funding as part of the total £7.5 million fund distributed over 20 months. Against the backdrop of an increasingly severe sewage pollution crisis, this technology has garnered attention.

Data shows that in 2025, UK storm drains recorded approximately 290,000 sewage discharges, totaling about 1.9 million hours. In addition to heavy rainfall and aging infrastructure, power outages at pumping stations have been identified as one of the main triggers for leaks.

Rheya's technology combines instant backup batteries with machine learning software. During a power outage, the battery immediately takes over the pump to prevent raw sewage leakage. The system simultaneously analyzes pump data to predict root causes before a leak occurs.

Ben Taylor, co-founder of Rheya Labs, stated that sewage pollution is a growing crisis across the UK and believes that power resilience at pumping stations is a hidden but major contributor to this issue. Jo Jolly, Innovation Director at Ofwat, noted that with the climate changing rapidly, there is a greater need than ever to redouble efforts to build water systems that can sustain lives and livelihoods.

Rheya Labs claims its technology is superior to existing systems. For comparison, Sydney Water has trialed a sodium-ion battery pack at the Bondi pumping station, offering a cheaper alternative to lithium-ion systems. The Australian project, funded with $10.6 million, combines a 30 kWh sodium-ion battery pack with rooftop solar power generation.

In New York, Viridi's 150 kWh lithium-ion battery system has replaced diesel generators, providing 32 to 90 hours of backup power. However, Rheya claims its technology, which combines instant backup power with predictive analytics, has the potential to detect errors before they occur.

Rheya's claims regarding leak prediction have not yet been independently verified beyond controlled trials and limited early testing. No independent verification results have emerged from public testing, and preliminary findings remain anecdotal.

Ten finalists, including Rheya, will have the opportunity to each share £550,000 in funding next April. This funding will be used for further testing, followed by deployment across a wider water network. The ultimate success of the project will depend on whether the predictive software can match the reliability demonstrated by simpler sodium and lithium batteries.

Battery innovations for critical infrastructure showcase the application prospects of energy technology across different fields. This development is also related to trends in charging technology evolution, such as Bosch's release of e-bike motors using advanced batteries and HP's fast-charging technology. Rheya Labs hopes its solution will be part of broader efforts to build water systems that can sustain lives and livelihoods amid rapid climate change. Jo Jolly added that the range of new ideas brought by newcomers is astonishing, and the challenge lies in implementing these ideas with the urgency required today.