Amex Building Decarbonisation Works

Project 

Client: CBRE
Project Location: AMEX & RDC Brighton
Project Type: Decarbonisation Project & And Replacement Cooling Towers
Scope of Work: Feasability Study, Full Mechanical & Electrical Services Design, Technical Consultancy
RIBA Stages: 

 PJA were appointed directly on behalf of CBRE to undertake a feasibility study for the AMEX Critical Services Building, One John Street, and the RDC Building to review the MEP systems. We then provided a design strategy to support the decarbonisation works, which involved removing the ageing gas-fired boilers and replacing them with air source heat pump technology. In addition to this, we supported the replacement of the cooling towers by redesigning and remodelling the plant room and associated roof space. 

 Strategy

• Thermal Modelling: Development of a detailed IES thermal model to assess the heating demand for each of the buildings, accounting for unique architectural features and usage patterns, to inform the new heating strategy.
• Design & Specification: Sizing and designing a bespoke air source heat pump system to replace the outdated gas boilers, ensuring compatibility with the existing MEP infrastructure of each building.
• Detailed Calculations: Performing detailed calculations tailored to each building's specific energy usage, ensuring the system meets the required performance targets and delivers maximum energy efficiency.
• Technical Consultancy: Providing expert advice and monitoring services on behalf of the landlord and main contractor, ensuring that the project is in line with the specific operational needs of each building.
• Commissioning Oversight: Managing the commissioning process for both the heating and cooling systems, ensuring seamless integration with the existing infrastructure and achieving optimal system performance.

 The completion of this project led to the removal of the gas heating systems and the successful integration of air source heat pump technology. This transition significantly improved the building’s energy efficiency and played a key role in supporting the client’s drive towards achieving their net-zero target. The enhanced heating and cooling systems are now more sustainable, reducing the building’s carbon footprint and ensuring its alignment with future energy performance goals.

Client: CBRE
Project Location: Exchange Quay, Salford
Project Type: Decarbonisation Project
Scope of Work: Feasability Study, Full Mechanical Services Design, Technical Consultancy, Commissioning & Close-out Monitoring
RIBA Stages: 1-4

PJA were appointed to deliver a comprehensive feasibility study and design to assess the building’s heating requirements. Key activities included:

• Thermal Modelling: Development of a detailed IES thermal model to determine the heating demand of the building and inform the new heating strategy.
• Design & Specification: Sizing and designing a system to replace the existing gas boilers with Mitsubishi air source heat pumps.
• Detailed Calculations: Providing accurate calculations to ensure optimal system performance and energy efficiency.
• Technical Consultancy: Offering expert monitoring services on behalf of the landlord and main contractor throughout the project.
• Commissioning Oversight: Overseeing the commissioning process and ensuring successful project close-out.

The completion of this project resulted in the complete removal of gas heating systems from the building, significantly enhancing its energy efficiency and sustainability. The transition to air source heat pump technology improved the building’s Energy Performance Certificate (EPC) rating to a B, meeting the latest government guidelines for energy efficiency. This project underscores PJA’s commitment to delivering innovative and sustainable building solutions.

Client: Polestar
Project Location: Glasgow, Sheffield UK
Project Type: Retail / Shopping Centre
Scope of Work: Full MEP (Mechanical, Electrical, and Plumbing) Services Design, Technical Consultancy, Commissioning & Close-out Monitoring
RIBA Stages: 1-4 

Project Overview 

Polestar appointed PJA MEP Design Consultancy to provide comprehensive MEP services for the Polestar Glasgow Shopping Centre, a key retail development located in the heart of Glasgow. The project involved the design of all new MEP systems, from initial concept through to technical design, with PJA also overseeing the commissioning and close-out phases.

The primary focus of the MEP services included a new mechanical ventilation strategy, VRF (Variable Refrigerant Flow) heating and cooling systems, specialist lighting and lighting controls design, fire alarm systems, and data systems infrastructure. The scope was to ensure that the shopping centre provided optimal comfort for shoppers and staff while being energy-efficient, sustainable, and aligned with Polestar's high standards for design and functionality.

Mechanical Ventilation

PJA developed an energy-efficient ventilation strategy combining natural and mechanical solutions. The design featured Heat Recovery Ventilation (HRV) to recycle exhaust air and precondition fresh air, while Demand-Controlled Ventilation (DCV) adjusted airflow based on occupancy and CO2 levels to reduce energy use.

VRF Heating & Cooling

A Variable Refrigerant Flow (VRF) system was implemented to provide efficient heating and cooling, offering precise temperature control across multiple zones. The system also included heat recovery, transferring heat between areas to further enhance energy efficiency. Integration with the Building Management System (BMS) optimized energy use.

Lighting & Controls

A bespoke lighting design, using LED fixtures for energy efficiency and low maintenance, was created to enhance the retail environment. Advanced lighting controls—including dimming, occupancy sensors, and daylight integration—ensured optimal lighting levels and minimized energy wastage.

Fire Alarm & Data Systems

PJA designed an integrated fire alarm system, with multi-sensor detectors and real-time monitoring via the BMS. The data system included high-speed cabling and wireless capabilities, ensuring seamless communication and supporting the shopping centre’s operational needs.

Project Conclusion 

PJA provided a comprehensive suite of services to ensure the success of the Polestar Car Showroom project in Glasgow. This included undertaking all survey works, developing a detailed strategy, managing design development, providing cost and compliance support, and overseeing the commissioning activities. By delivering an integrated approach across all disciplines, PJA ensured that the project met its energy efficiency, functionality, and compliance goals.

Project 

Client: Lancaster University
Project Location: Lancaster
Project Type: Electrical Design Works
Scope of Work: RIBA Stage 4 & 5 Technical detailed Electrical Design
RIBA Stages: 4-5 

 PJA were appointed to provide comprehensive electrical design services for the redevelopment of Lancaster University’s facilities. The project involved the installation of new small power systems, specialist lighting design, new sub-mains supplies, data infrastructure, access control, and CCTV systems. Our team worked closely with the client to ensure all systems were designed to meet the university’s operational needs while contributing to their long-term sustainability goals. 

 Strategy

• Small Power System Design: We designed a flexible and energy-efficient small power distribution system tailored to the university’s specific requirements. This system was engineered to handle high loads and ensure reliability throughout the campus.

• Specialist Lighting Design: Our team provided bespoke lighting design solutions, incorporating energy-efficient LED technology and advanced controls to optimize energy consumption and create the right atmosphere in academic, recreational, and common areas. The design focused on both functionality and aesthetics to meet the university’s standards for modern learning environments.

• Sub-Mains Supply Design: We specified and designed new sub-mains supplies to enhance the overall electrical infrastructure, ensuring adequate capacity and redundancy to support the university’s growing needs while adhering to the highest standards of safety and efficiency.

• Data Infrastructure: Our team engineered a robust and scalable data network, designed to handle the university’s increasing demand for high-speed internet and communication systems. This included the design of new cabling routes and data distribution systems to support future-proof connectivity across the campus.
• Access Control Systems: We designed a comprehensive access control system, integrating secure, user-friendly technologies to control and monitor access points throughout the campus. The system was designed to enhance security and operational efficiency, with full integration into the university’s existing infrastructure.

• CCTV System Design: A high-resolution CCTV system was designed to provide 24/7 surveillance across key areas of the campus. The design included camera placement optimization, video storage solutions, and remote monitoring capabilities, ensuring the safety of students, staff, and university assets.

 The successful completion of this project delivered a state-of-the-art electrical infrastructure for Lancaster University, significantly enhancing the safety, efficiency, and sustainability of its facilities. The integration of small power systems, specialist lighting, and advanced security features ensures that the university is well-equipped for future growth and capable of achieving its sustainability and operational goals.  

Project Oliver Wyman Office Fitout 

Client: Oliver Wyman
Project Location: Bake Street, London
Project Type: Office Fitout
Scope of Work: Pre Contractrual support, client monitoring and wintessing commissioning & Close out
RIBA Stages: 1-5

  PJA were appointed to provide comprehensive MEP design and pre-contractual support for the office fitout at Oliver Wyman’s offices on Baker Street, London. This prestigious project involved the modification of existing four-pipe fan coil units, the introduction of a new supplementary VRV system, and various updates to the electrical systems, including lighting modifications, small power, and data. The works were completed across two floors of the office building, with the fitout delivered by TSK Group. 

 Strategy

• Performance Specifications & MEP Tender Pack: Our team developed detailed performance specifications and a full MEP tender pack, providing a clear scope of works to support the tender process. The pack ensured that contractors understood the design intent and could submit competitive bids that met the client’s operational and budgetary requirements.
• Pre-Contractual Support: During the tender period, we provided expert pre-contractual support, including responding to contractor queries, clarifying design details, and ensuring that all tender submissions adhered to the specified requirements.
• Client Monitoring & Commissioning Oversight: Once the project moved into the construction phase, we offered ongoing client monitoring services, overseeing the commissioning process and ensuring the work was progressing according to schedule and to the highest standards. Our team was involved in overseeing the commissioning and close-out procedures, ensuring that all systems were fully functional and met the performance criteria.
• HVAC System Modifications & New Installations: The project included the modification of existing four-pipe fan coil units to optimize their efficiency and performance. Additionally, we introduced a new supplementary VRV system to enhance the overall HVAC functionality and ensure optimal comfort for the building's occupants.
• Lighting & Electrical Modifications: We provided a comprehensive redesign of the lighting systems, including energy-efficient LED lighting installations and intelligent lighting control systems to meet both functional and aesthetic requirements. The project also involved modifications to small power and data systems to support the operational needs of the office space.

 This project successfully upgraded the MEP systems across two floors of Oliver Wyman’s prestigious office space. The modifications to the HVAC and electrical systems significantly enhanced the building’s comfort, functionality, and energy efficiency. Our involvement in providing performance specifications, managing the tender process, and overseeing commissioning ensured that the client’s requirements were met on time, within budget, and to the highest standards. The close collaboration with TSK Group ensured the successful delivery of a modern, sustainable office environment. 

Project Easy Hotel Group

Client: Easy Hotel
Project Location: Glasgow
Project Type: Hotel Fitout
Scope of Work: Comprehensive Mechanical Design
RIBA Stages: 3-5

 PJA were appointed to provide comprehensive mechanical design services for the refurbishment of the Easy Hotel Group in Glasgow. The project involved full mechanical design, detailed calculations, and IES thermal modelling to integrate new systems, including air source heat pumps (ASHP), new mechanical ventilation, and upgraded domestic services throughout the refurbished hotel. Our work focused on delivering sustainable, energy-efficient systems while enhancing the hotel’s comfort and operational efficiency. 

 Strategy

• Mechanical System Design: We provided full mechanical design for the refurbishment, including the specification of new systems to replace existing infrastructure. Our design included the integration of an air source heat pump (ASHP) system to provide an energy-efficient solution for heating and hot water.

• Thermal Modelling & Calculations: We developed a detailed IES thermal model to assess the heating, cooling, and ventilation demands of the hotel. This allowed us to optimise the design and ensure the building's energy efficiency was maximized while meeting comfort requirements for the guests. Detailed calculations were conducted to ensure all systems were sized correctly to perform efficiently under varying loads.

• Mechanical Ventilation Design: We designed a new mechanical ventilation system to ensure a constant supply of fresh air throughout the hotel. The system was designed to meet both comfort and regulatory standards while minimizing energy consumption through the use of heat recovery and zoned ventilation for energy efficiency.

• Domestic Services Design: Our team specified and designed new domestic services for the hotel, including hot and cold-water systems, drainage, and gas services. The design focused on maximizing efficiency and minimizing energy consumption while ensuring the system could meet the peak demands of a busy hotel environment.

• Energy Efficiency & Sustainability: The integration of air source heat pump (ASHP) technology and energy-efficient ventilation systems was designed to support the hotel’s sustainability goals. By using renewable energy sources and optimizing system performance, the project reduces operational costs and enhances the building's environmental performance.

Project Conclusion 

The refurbishment of the Easy Hotel Group in Glasgow successfully integrated sustainable and energy-efficient mechanical systems. The installation of air source heat pumps, new mechanical ventilation, and upgraded domestic services significantly improved the hotel’s energy performance and comfort for guests. Through careful IES thermal modelling and detailed mechanical calculations, PJA ensured the systems were designed to meet the hotel’s operational and environmental goals, contributing to a modern, efficient, and comfortable hospitality environment. 

Project Practice Plus- Office & Critcal Services fitout 

Client: TSK Group
Project Location: Practice Plus. Middlesbrough
Project Type: Fitout
Scope of Work: Comprehensive Mechanicign, Electrical & Critical Services Design
RIBA Stages: 3 & Review of Stage 4-5 

PJA were appointed to provide full MEP design services for the Practice Plus critical services building in Middlesbrough. This project required comprehensive design work up to Stage 4, with a focus on critical services to ensure the building’s resilience and continuous operation. Our design included the integration of a standby backup generator, uninterruptible power supply (UPS) systems, and other critical infrastructure to support the building’s operations in the event of power outages or system failures. 

• Full MEP Design to Stage 4: We delivered detailed MEP design services, developing the design package to Stage 4, ensuring that all mechanical, electrical, and plumbing systems were fully coordinated with the building’s requirements. The design aimed to support the operational needs of the critical services environment while maintaining the highest standards of safety and efficiency.

• Standby Backup Generator Design: As part of the critical services infrastructure, we specified and designed a standby backup generator to ensure continuous power supply in the event of an outage. The generator was carefully selected to meet the specific power demands of the building’s operations, providing reliable backup for all critical systems.

• UPS System Design: To complement the backup generator, we designed a robust uninterruptible power supply (UPS) system to maintain power continuity for essential systems, such as IT infrastructure, medical equipment, and security systems. This system was integrated with the overall MEP design to ensure seamless operation during power interruptions.

• Critical Services Integration: Our team provided expert advice and design for the integration of all critical services systems, including fire safety, HVAC, lighting, and water services, ensuring that each system was reliable, scalable, and capable of meeting the needs of a critical services building.

• Resilience & Building Continuity: We ensured that the mechanical, electrical, and plumbing systems were designed to support the building's resilience, enabling it to continue functioning without disruption in emergency situations. The UPS and backup generator were key components in achieving this, along with the integration of energy-efficient technologies to maintain sustainability.

Project Conclusion 

The Practice Plus critical services building in Middlesbrough now benefits from a fully integrated MEP system that ensures the building's resilience and operational continuity. The inclusion of a standby backup generator and UPS system provides reliable power during emergencies, while our comprehensive design ensures the building’s systems are fully optimized for performance and efficiency. The project highlights PJA’s expertise in designing critical infrastructure for high-demand environments, ensuring the client’s needs for both operational reliability and energy efficiency are met. 

Project Office fitout 

Client: TSK Group - on behlaf of OSB
Project Location: Wolverhampton
Project Type: Fitout
Scope of Work: Comprehensive Mechanicign, Electrical & Client Monitoring
RIBA Stages: 1-3 & Review of Stage 4-5 and witness commissioning activities 

 PJA were appointed to provide a comprehensive MEP design strategy for the OSB Group in Wolverhampton. The project involved detailed survey works and building assessments, which ultimately led to the removal of all gas systems, the full strip-out of inefficient four-pipe fan coil units, and aging chillers. We developed and implemented a new, highly efficient MEP strategy, replacing the old HVAC systems with R32 VRV fan coil units, integrating local and global warming potential (GWP) technologies. Additionally, we refurbished the existing mechanical ventilation plant, updated the controls strategy, and replaced all aging fluorescent lighting with a new energy-efficient LED lighting system. 

• Detailed Survey Works & Building Assessments: Our team conducted an extensive survey of the building, reviewing the existing HVAC systems and overall MEP infrastructure. This helped us identify inefficiencies and develop a design strategy that would reduce energy consumption, improve comfort, and align with the client’s sustainability goals.
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• Gas Removal & HVAC System Overhaul: We designed a comprehensive HVAC strategy to replace the existing gas systems and outdated four-pipe fan coil units with energy-efficient R32 VRV fan coil units. This new system was selected due to its high efficiency and lower environmental impact, including reduced GWP. We also introduced the potential for local and global warming potential management to further align with sustainability goals.

• Mechanical Ventilation Plant Refurbishment: The existing mechanical ventilation plant was retained and refurbished to ensure continued operation. This included the introduction of a new DX coil and an updated controls strategy, which optimized the plant’s performance, reducing energy consumption and improving system reliability.

• Lighting System Overhaul: All aging fluorescent lighting was replaced with a new energy-efficient LED lighting scheme throughout the building. The new system provides enhanced lighting quality, energy savings, and a longer lifespan, contributing to the overall sustainability of the building.

• Integrated Controls Strategy: We developed and implemented a new controls strategy for both the HVAC systems and lighting, ensuring seamless integration and efficient operation of all systems. The controls were designed to optimize energy usage, reduce waste, and ensure the building’s environmental performance.

Project Conclusion 

 The refurbishment of the OSB Group’s building in Wolverhampton resulted in the complete overhaul of its MEP systems, transforming the building into a highly energy-efficient and sustainable environment. The removal of gas, the introduction of R32 VRV fan coil units, and the refurbishment of the mechanical ventilation plant significantly improved operational efficiency and reduced the building's carbon footprint. Additionally, the full upgrade of the lighting system to LED technology further contributed to the building’s energy performance. PJA’s innovative design strategy and implementation have helped OSB Group achieve a modern, sustainable, and efficient building that meets both operational needs and environmental targets