Cork City Hall Phase 1 Energy Metering

Cork City Council commissioned Lumina 360 to design and deploy a Phase 1 energy metering system across Cork City Hall and the Civic Offices. The building complex had limited sub-metering in place, which meant the energy team had no visibility into where consumption was occurring or where it was being wasted. The investment case was straightforward: understand the operation before committing to major capital projects.

Lumina specified and deployed a wireless LoRaWAN metering network covering electricity, gas, and heat across the complex. On the electrical side, two MID-certified panel meters replaced ageing units on the two main distribution boards, and 23 three-phase current sensors were installed on priority circuits across the Civic Offices, City Hall, rooftop plantroom, Fire Station, and basement car park. Three ultrasonic heat meters were installed on key heating circuits, and the existing gas chatterbox was integrated with a wireless pulse counter. All data feeds into the Lumina+ platform with live dashboards, consumption alarms, and automated reporting.

Results came quickly. Within the first weeks of data collection, Lumina delivered an initial analysis report identifying nearly €25,000 per year in conservatively estimated savings opportunities: sufficient to recover the full project cost in approximately 17 months. The opportunities ranged from simple scheduling fixes to demand-controlled ventilation upgrades for the AHUs. The metering data also validated key financial assumptions from the IGDR, giving the Council greater confidence in the projected returns from its planned capital programme.

These findings represent the first pass. Several meters were still accumulating data at the time of the initial report, and further opportunities are expected as a more complete operational picture builds over time. The system is designed to be a continuous tool for energy management, not a one-off survey.