WCES - Hay's Galleria - WCES Certificate

Energy performance

34.2 %

Energy savings

162.4 kWh/m²/year

Absolute performance

22.3 kgCO₂/m²/year

Carbon intensity

Operational Context

Hay's Galleria is comprised of 6 buildings blocks, 5 floors within each block, equipped with condensing boilers for thermal heating to ventilation and DHWS, water cooled chillers, cooling towers and main office AHUs on the roof, supply fresh air via floor supply boxes.

Key measures implemented

The main actions implemented to reduce the energy consumption of this building.

Technical Optimization

Deployment of building analytics platform to digitalise maintenance practices and apply targeting and monitoring via Fault Detection & Diagnostics,
Time-clock review and adjustments to fit with building occupancy,
Removing of overrides and BMS anomalies,
Upskilling the engineering team via using building analytics platform as part of their daily plant checks and equipment performance management
Validation and optimisation of the chillers staging and sequencing,
Validation and optimisation of the boilers staging and sequencing,
Implementation of return temperature setpoint control strategy on the boilers,
Implementation of weather compensated setpoints across AHUs, boilers and chillers via the BMS,
Validation and fine-tuning of pressure control loop on ventilation equipment,
Validation and fine-tuning of heat recovery control loop on ventilation equipment,
Re-calibration of pressure sensors across AHUs,
Implementation of floor demand control strategies based on FCUs average valve position,
Staged temperature control strategy, from primary to plate heat exchangers.

Use Sufficiency

Additional visits for BMS engineers to get the BMS infrastructure and software to a steady state,
Dedicated Building Performance Manager to distribute the data-led insights and deliver the optimisation via support from supply chain,

Technical context

Floor area 40,412 m²

Number of floors 5

Activity type Office

Year built 1988

Heating system Gas boiler

Consumption data

Measurement periods

Reference period

Nov 2022 - Jan 2024

Monitoring period

Dec 2024 - Nov 2025

Hay's Galleria