Case Study
20 Fenchurch Street
Visiting one of London's most iconic buildings, also known as "The Walkie-Talkie," on its Green Team Meeting day was a truly insightful experience. It was exciting to see property managers, tenants, and businesses all in one place, sharing their energy-saving wins through the Go Dark Project and other green efforts.
March 2022 - February 2023
Location: London
1 year achievements
2nd Place
Winner
36.49%
Energy savings
13,425,498 kWh
total savings
£ 2,272,298
savings
Building characteristics
100,284 m2
total area
2008
Construction completed
37 floors
plus three-story sky garden
1 person per 10m2
Occupational density
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BMS, Roof-mounted PV, HVAC, DHW system, 100% Renewable energy
Building systems
Cycle spaces - 422
Motorcycle spaces - 19
BREEAM/New Construction (Excellent), EPC (B rating)
Certification
Top actions
Management and behaviour
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Conducted green team meetings to boost awareness and discuss the sustainability agenda
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GWS Tenant and Simmtronic specialists conducted assessments and maintenance to enable energy adjustments on individual floors
Minor technical and re-programming
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Initiated Project “ Go Dark”– (Switching off lights from 11pm to 5am), saved 785,000 kWh in July and August compared to 2019
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Adjusted and reset the lighting dimmer by 40% in the lobby area and switched off exterior lights.
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Started LED Lighting replacement programme by conducting a lighting review of the emergency staircase, B1, B2, and back of house (replaced approx. 1,140 Lights)
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Implemented Boiler turn off procedure which switches off the boiler when the temperature exceeds 28 °C outside
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Adjusted BMS setpoints in the building to control and manage the energy consumption of building better
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Implemented Cooling towers variable set points procedure by using outside wet bulb temperature proxy to achieve maximum efficiency in summers
Don't just take it from us
What BNP Paribas says
“Great to have seen the level of engagements from diverse building stakeholders - from contractors to landlord and building managers to occupiers. It's this level of deep, continuous and diverse collaboration that's needed to reach net-zero and other shared sustainability goals. "
-Joshua Spencer, BNP Paribas RE