Case Study
Place D’Alleray
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.
January 2017 - December 2017
Location: Paris, France
![Screenshot 2024-01-30 141148.png](https://static.wixstatic.com/media/41e749_1868a9f2b3b34cd3821e1baff0cb0720~mv2.png/v1/fill/w_374,h_426,al_c,q_85,usm_0.66_1.00_0.01,enc_auto/Screenshot%202024-01-30%20141148.png)
1 year achievements
1st Place
Winner
57.4%
Energy savings
2,563,863 kWh
total savings
Building characteristics
![noun-building-5778887_edited.png](https://static.wixstatic.com/media/813735_ba8861e34bc64eb4b137e30eb8045164~mv2.png/v1/crop/x_0,y_4,w_989,h_969/fill/w_54,h_53,al_c,q_85,usm_0.66_1.00_0.01,enc_auto/noun-building-5778887_edited.png)
17,744 m2
total area
![noun-construction-5780816_edited.png](https://static.wixstatic.com/media/813735_f2f7a2e306ec495a96f2eef776a86193~mv2.png/v1/crop/x_0,y_13,w_1048,h_1027/fill/w_50,h_49,al_c,q_85,usm_0.66_1.00_0.01,blur_3,enc_auto/noun-construction-5780816_edited.png)
1987
construction completed
![noun-people-4401282_edited.png](https://static.wixstatic.com/media/813735_5e926e66688d41e486160acc2aba48a5~mv2.png/v1/fill/w_60,h_60,al_c,q_85,usm_0.66_1.00_0.01,blur_3,enc_auto/noun-people-4401282_edited.png)
1,000
occupants
![noun-system-4128402_edited.png](https://static.wixstatic.com/media/813735_7aacb72a52bc47189a47921c1fe815d2~mv2.png/v1/crop/x_83,y_83,w_1034,h_1034/fill/w_50,h_50,al_c,q_85,usm_0.66_1.00_0.01,blur_3,enc_auto/noun-system-4128402_edited.png)
Electric heating and domestic hot water, air conditioning
Building system
![](https://static.wixstatic.com/media/813735_eea803ab7ea84c57ab1d46230b993e5e~mv2.png/v1/crop/x_124,y_21,w_972,h_1138/fill/w_54,h_60,al_c,q_85,usm_0.66_1.00_0.01,enc_auto/813735_eea803ab7ea84c57ab1d46230b993e5e~mv2.png)
No environmental in use, No energy manager
![noun-parking-1051875_edited.png](https://static.wixstatic.com/media/813735_21307513465f4d629c8f7c82b4378fd5~mv2.png/v1/fill/w_46,h_60,al_c,q_85,usm_0.66_1.00_0.01,blur_3,enc_auto/noun-parking-1051875_edited.png)
Car park spaces - 300
![restaurant_edited.png](https://static.wixstatic.com/media/41e749_54a58a1cb19d4865b54bd799ac0e6f75~mv2.png/v1/fill/w_61,h_61,al_c,q_85,usm_0.66_1.00_0.01,blur_3,enc_auto/restaurant_edited.png)
Restaurants - 1,845 m2
Top actions
Management and behaviour
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Held 3 informational “energy breakfasts” to talk about the competition, raise awareness among occupants and explain why it was taking place
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Displayed information monthly about air conditioning use, lift use, and mid-season behaviour (e.g. wear jumpers if it is cold)
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Put up behavioural nudge posters (e.g. why lower the temperature?)
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Promoted talking to occupants before changing any of the settings, getting them to change behaviour before settings
Minor technical and re-programming
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Knowledge transfer of settings that worked well for one of Orange’s sites and were then adopted by remaining sites
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Switched off the heaters in unoccupied rooms (this was done manually)
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Optimised building program timers by narrowing on/off time frames based on occupation, reducing district heating consumption.
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Revised thermal insulation of equipment
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Optimised cold air inflow and adjusted it for forecasted weather (e.g. temperature increased during heatwave)
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Installed timers on extractors fans in sanitary facilities
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Readjusted BMS set points to lower the 21° threshold by 2°C
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Reprogrammed the BMS lighting using hourly settings.
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Lighting: installed brightness sensors, adjusting according to the brightness
![IMG_0174.HEIC](https://static.wixstatic.com/media/41e749_5e9a3827df8c47ba8f90c5c39d4e95ea~mv2.png/v1/fill/w_49,h_36,al_c,q_85,usm_0.66_1.00_0.01,blur_2,enc_auto/IMG_0174_HEIC.png)
![IMG_0193_edited_edited.jpg](https://static.wixstatic.com/media/41e749_58ee27b064434d6491a069c491089651~mv2.jpg/v1/fill/w_79,h_62,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/IMG_0193_edited_edited.jpg)
![IMG_0180_edited.jpg](https://static.wixstatic.com/media/41e749_8a479f8f574b4da785078d113b8d0b7d~mv2.jpg/v1/fill/w_59,h_68,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/IMG_0180_edited.jpg)
Don't just take it from us
What RO say
![ro-logo_lBTDB_2.webp](https://static.wixstatic.com/media/70c713_0232aab60a67472bb7b3a4f3de435d34~mv2.png/v1/crop/x_40,y_0,w_193,h_122/fill/w_62,h_39,al_c,q_85,usm_0.66_1.00_0.01,blur_2,enc_auto/ro-logo_lBTDB_2.png)
"CUBE provides a unique opportunity for us to collaborate with our tenants as we continue our journey to a more sustainable future. As a landlord, engagement with our tenants is paramount, and improving energy efficiency across our buildings is a key priority for us. CUBE is a first for the real estate sector and the competition comes at an important time"
- Edward Rowlandson, Group Managing Director, the RO