As part of Pembroke College’s expansion, Millers Yard was developed to provide low-carbon student accommodation and commercial spaces, ensuring a balance between sustainability and functionality. The project included three student accommodation blocks—two refurbished buildings and one new-build—as well as two commercial shell spaces for future fit-out.
Energy Digest was commissioned to conduct SBEM Calculations and Dynamic Simulation Modelling (DSM), ensuring the development complied with Approved Document L Volume 2 while optimising energy efficiency, carbon reduction, and operational performance.
To meet stringent compliance and performance standards, a comprehensive energy strategy was implemented:
Efficient Site-Wide Heating Systems
The primary heating solution incorporated an advanced air source heat pump (ASHP) system connected to an underfloor heating network. This integration optimises thermal efficiency by distributing heat uniformly and minimising heat loss, resulting in lower energy consumption and enhanced occupant comfort.
Low-Carbon Cooling Solutions
To address seasonal temperature fluctuations efficiently, accommodation units incorporated low-temperature chilled ceiling systems. By avoiding traditional energy-intensive air conditioning systems, these chilled ceiling solutions contribute substantially to reduced operational carbon emissions.
High-Performance Building Fabric
Significant enhancements were implemented across building fabric elements, including superior insulation materials, rigorous air-tightness detailing, and advanced glazing systems. These upgrades have notably decreased energy use intensity (EUI), substantially reducing heating and cooling loads.
On-Site Renewable Energy:
Photovoltaic (PV) panels were comprehensively installed on all suitable roof surfaces within the development, strategically oriented to optimise solar exposure and maximise renewable electricity generation.
Student accommodation presents unique complexities, given its high occupancy density and intense usage patterns—often surpassing those of standard residential buildings. As with hotels and other large-scale dwellings, these facilities typically have elevated energy and carbon footprints. Consequently, the building services design must handle significant surges in demand during peak periods. Additionally, Cambridge records higher average summer temperatures than many other UK regions, necessitating a well-planned mechanical cooling strategy to ensure occupant comfort throughout the year.
Through meticulous energy modelling and strategic system design, Energy Digest successfully delivered:
Compliance with Approved Document L Volume 2
Energy Digest successfully ensured complete compliance with Approved Document L Volume 2. This thorough approach satisfied all regulatory requirements, providing a seamless path to building control sign-off and reducing the risk of costly delays or revisions.
Significant Carbon Reduction Through Advanced Technologies
Energy Digest delivered substantial carbon savings by strategically integrating Low and Zero Carbon (LZC) technologies. These systems efficiently manage all primary heating, cooling, and hot water demands, significantly reducing the building’s carbon footprint, aligning closely with sustainability targets, and demonstrating a strong commitment to environmental responsibility.
Prompt Delivery of As-Built BRUKL Reports & EPC Certification
Energy Digest's proactive approach resulted in the early delivery of accurate As-Built BRUKL Reports and EPC certification. These critical documents were completed well in advance of building control deadlines, ensuring a smooth, hassle-free approval process.
Energy Digest demonstrated an exceptional level of expertise and professionalism throughout this project. Their in-depth reporting, proactive communication, and collaborative approach ensured all deliverables were completed efficiently and to a high standard.
