- Location: Edinburgh
- Client: Private
- Services: Energy Modelling, Solar and Heat Pump yield modelling and Energy Performance Certificate
This private house in Edinburgh was looking to rerofit to the highest fabric standards (enerPHit). As well as incoporate renewables, with solar PV and a heat pump.
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Technical Assessment & Review
We created a detailed thermal model to explore various heating, ventilation, and renewable energy options. This approach helped both the design team and the client systematically assess each system against alternatives. Moreover, it enabled a thorough evaluation of fabric options to ensure the best value for investment while meeting strict Passive House standards.
ASHP Modelling
By incorporating high-quality windows and fabric insulation, we achieved significant energy savings—up to 75% in a retrofit project like this. To address the remaining heat demand, we determined that an air source heat pump was the most effective solution. Our detailed modelling process ensured accurate selection of the final heat pump system.
Solar PV Sizing
Using a fabric-first and Passive House approach, we successfully reduced the overall energy demand. This lower demand allowed a significant portion of the energy needs to be met through solar photovoltaic (PV) panels. As grid electricity continues to decarbonise rapidly, this measure further reduces lifetime CO₂ emissions. Additionally, incorporating roof-mounted solar PV made practical and economic sense since new roofing material was required as part of the project.
