Significant energy saving for Pinsent Masons


Pinsent Masons, headquartered in London, operates in a multi-tenant 205,000 sq. ft building with 18 floors and over 2,000 staff. This case study highlights how partnership with OakTree Power enabled them to achieve substantial energy savings and carbon emissions reductions through secure electrical consumption analysis and optimisation. 

Client Background

Pinsent Masons is a prominent law firm at the forefront of innovation in the legal industry. Their commitment to sustainability aligns with their goals of efficient operations and environmental responsibility. 


Pinsent Masons faced the challenge of optimising energy consumption in their large, multi-tenant office space. They sought substantial cost reductions and a greener operational footprint while ensuring zero impact on occupants during energy management events. 

OakTree Power's Solution

OakTree Power introduced its unique Load Adjustment Strategy (LAS 360°) which involved: 

  • Turning down on Air Handling Units (AHUs) 
  • Modulating Chiller Units 
  • Adjusting Fan Coil Units 
  • Turning down other non-essential plant equipment  



The implementation phase revolved around innovative strategies to secure energy efficiency and occupant comfort. OakTree Power’s LAS 360° seamlessly adjusted energy loads, optimising consumption with over 900 micro-adjustment events annually. 

OakTree Power leveraged its IoT device and platform for: 

  • Strategic IoT device deployment throughout the building 
  • Secure data analysis, safeguarding sensitive information 
  • Continuous real-time monitoring to identify inefficiencies 
  • Data-driven optimisation strategies tailored to the Pinsent Masons’ needs 

The outcome

The results demonstrated the effectiveness of OakTree Power’s solutions: 

  • A remarkable 28% reduction in the annual energy bill, providing substantial cost savings 
  • A total reduction of 230,000 kgs of CO2 emissions, contributing significantly to Pinsent Masons’ sustainability goals 
  • Zero impact on occupants in a multi-tenant environment, demonstrating OakTree Power’s commitment to occupant comfort and operational efficiency 



We achieved industry leading results working with Pinsent Masons. Their commitment to environmental responsibility was met with a 28% reduction in energy bills and a significant reduction in CO2 emissions, all while ensuring zero impact on their occupants


This case study underscores how OakTree Power’s innovative LAS 360° can deliver remarkable energy savings and sustainability benefits. This success serves as a testament to the potential of efficient energy management in creating a more sustainable and cost-effective future. 

Read More Here.

Pinsent Mason

Take the next step

For further information on how OakTree Power can transform your energy landscape, contact our team today.

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