2.2. Electrical Power Quality and Harmonic Distortion Mitigation
Estate engineering teams must implement dedicated harmonic mitigation measures alongside flexible operating protocols to prevent electrical infrastructure failures during heat pump retrofits. When integrating large-scale heat pumps into an established university distribution network, variable-frequency drives introduce non-linear loads that distort voltage waveforms and increase current total harmonic distortion across local feeders. To safeguard campus distribution assets, the practical selection of active power filters serves as a critical technical requirement, compensating for dynamic distortion and stabilising power quality at key substation coupling points (ISGT Europe 2024). In parallel, operating strategies must coordinate these electrical conditioning devices with modulated district network flow temperatures. By incorporating thermal network temperature flexibility into operational dispatch schedules, facilities managers can adjust heat pump electrical draw during peak grid periods without breaching local capacity limits or degrading campus thermal comfort (ISGT Europe 2025). Furthermore, estate governance must decouple actual thermodynamic energy reductions from regulatory carbon metrics, ensuring that power quality and demand-management investments are assessed against verified physical performance rather than shifting grid emission factors (SSRN 2026). Establishing these combined criteria provides estate managers with a robust framework for sizing power filtering equipment and configuring thermal load schedules prior to capital commitment.