London skyscraper pilot highlights £32K in avoidable energy waste

An iconic skyscraper in the City of London conducted a pilot with Johnson Controls to improve visibility across key plant equipment and uncover opportunities to reduce energy waste. By focusing on just three floors and 10% of the building, the team identified meaningful savings potential while laying the groundwork for wider efficiency gains across the site.

Impact Highlights

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£32,000 potential savings identified, with greater value possible once scaled

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Up to 5% energy savings uncovered across just 10% of the building

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Identified a major efficiency gap with Energy Use Intensity (EUI) exceeding UK benchmarks

Limited building performance data made it difficult to identify energy waste

The customer needed to reduce energy use across a large, premium office tower but lacked detailed performance data to support decision-making. Without clear visibility into how equipment such as pumps, boilers, AHUs, and fan coil units operated across different floors, it was difficult to pinpoint energy waste or compare performance against strict EUI expectations, which are among the most rigorous in Europe.

Operational decisions were further constrained by the need to maintain a high-quality tenant experience. The team required a scalable approach that would offer a unified view across plant systems while supporting long-term planning for net zero commitment.

Pilot deployment delivered clearer operational oversight and informed future improvements

The customer implemented a pilot to centralize visibility across three floors, bringing together data from major plant equipment including pumps, boilers, AHUs, and fan coil units.

Metasys and OpenBlue Equipment Performance Plus supported analysis by identifying inefficiencies, refining equipment scheduling, and highlighting opportunities for smarter operation. OpenBlue Net Zero provided accurate Energy Use Intensity (EUI) reporting, enabling the team to benchmark performance and prepare for future carbon reduction initiatives.

The pilot approach allowed the the team to make progress without disrupting tenants and created a repeatable model that can scale across the remaining floors.

Pilot results highlight strong savings potential

By improving equipment scheduling, refining system control, and analyzing patterns of avoidable energy use, the pilot uncovered £32,000 in potential energy savings with significantly greater impact expected once scaled across the full building.

  • £32,000 potential savings identified, with greater value possible once scaled
  • Up to 5% energy savings uncovered across just 10% of the building
  • Clearer visibility into operational performance over three pilot floors
  • Identified a major efficiency gap with Energy Use Intensity (EUI) exceeding UK benchmarks

About Skyscraper City of London OpenBlue

The customer is a global real estate investment trust (REIT) managing a portfolio that includes major commercial properties in key global cities. The company manages a range of assets and oversees the performance of several high-profile buildings.

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About the facility

  • Spans more than 40 floors
  • Over 300,000 sq ft of prime office space
  • 133 connected equipment assets
  • 1,000+ data points

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