City of Cranbrook Microhydro Energy Recovery Assessment
Project Highlights
The City of Cranbrook explored opportunities to generate renewable electricity from its municipal water distribution system by recovering energy that would otherwise be dissipated through pressure reducing valve (PRV) stations. KWL evaluated the feasibility of installing a microhydro energy recovery system within the City’s existing water infrastructure. The assessment focused on identifying locations where excess head (pressure) could be converted into clean electrical energy while maintaining reliable water service.
KWL reviewed thirteen existing PRV stations through the City’s distribution network. Based on a previous site review and system assessment, the preferred PRV station was identified as the most promising candidate for energy recovery due to its available pressure differential and operational characteristics.
The feasibility assessment examined available flow and head conditions, developed a conceptual energy recovery configuration using a reverse pump turbine-based system, evaluated electrical interconnection requirements, and prepared preliminary cost and financial analyses. KWL also reviewed opportunities to connect generation to BC Hydro’s Net Metering Program (Net Billing Program effective July 1, 2026), allowing renewable electricity produced by the facility to offset municipal energy consumption. The project demonstrated how municipalities can leverage existing water infrastructure to support climate action goals, reduce operating costs, and improve energy efficiency through innovative energy recovery solutions. By integrating renewable power generation into the water distribution system, Cranbrook could potentially transform a pressure management asset into a source of sustainable electricity generation.
