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United Utilities deliver 1.8 billion litres of water a day in North West England. Combined Heat & Power (CHP) engines on wastewater treatment plants run on biogas from the wastewater process, creating heat and electrical power, both valuable outputs. The heat is returned to the digestion process and the power is primarily used onsite, with any excess sold to the National Grid. The team wanted to monitor engines to improve efficiency and drive performance, but connecting the engines to SCADA couldn’t be justified financially or within acceptable timeframes.
Powelectrics telemetry devices were installed on the whole estate of United Utilities CHP engines and a custom portal developed to show engine status- Running, stopped but available, tripped and … stopped for maintenance. This data allows UU to accurately see the MTTR, MTTB and availability of the fleet and therefore, help to drive better performance.
Multiple United Utilities stakeholders can see status of all CHP engine types on a single portal, with data used to monitor performance and identify general maintenance issues and those related to specific assets. Improved efficiency increases the cost savings from heat production and income from energy sales.