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Phased Switch System (PSS)

Funding mechanismStrategic Innovation Fund (SIF)
DurationSep 2024 - Jan 2028
Estimated expenditure£3.43m
Research areaImproving energy system resilience and robustness
  • April 2025

    The development of the new system based on learning from the UKPN trial is underway. The team has had feedback on the PNDC Test Plan and the first quarterly …

Project Summary

The Phase Switch System allows for dynamic phase reconfiguration of a Low Voltage (LV) feeder cable to reduce phase imbalance. Reducing phase imbalance; 

  • reduces the load in the most heavily loaded phase, decreasing the chance of incorrect fuse operations • improves the utilisation of the cable's capacity, deferring reinforcement
  • reduces losses on the LV feeder and associated CO2 emissions
  • reduces the likelihood of customer voltage issues preventing participation in flexibility services or other markets
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  • This project further develops and tests an existing protype to market readiness while providing a support tool for planning and optimisation of deployment.