British Land, a UK-based property development and investment company, has successfully replaced gas boilers with heat pump technology at its London headquarters, York House. The five-storey office building previously relied on gas for heating and cooling, but the new system uses two air-source heat pump chillers and one water-to-water heat pump from Mitsubishi Electric. The goal was to reduce operational carbon by 75% and energy use by 25% by 2030. The project achieved a 400kWh reduction in energy use year-on-year. The design was provided by Twenty One Engineering, which identified the peak load to increase efficiency and controlled the building on a demand-driven strategy. The installation was completed within normal office hours to minimize disruption. The Mitsubishi Electric heat pump chillers also reuse waste heat to heat the building and minimize energy consumption. The project’s unique aspects include no hydronic separation and a lower capacity on the water-to-water side, resulting in higher operational efficiencies, lower initial capital costs, and a simpler installation.
Mitsubishi lands major London project for heat pumps
