Performance Verification in Renovation Projects
Available Outcomes
Monitoring systems set up in demonstration projects and running
The monitoring system used in the OutPHit project is a cutting-edge setup designed to track energy consumption and indoor air quality in buildings that have undergone energy upgrades. By measuring parameters like temperature, humidity, and CO2 levels, the system validates energy demand predictions made using the Passive House Planning Package (PHPP) and identifies any discrepancies between projected and actual energy usage. This real-time data collection and analysis ensure a thorough assessment of the building's energy performance, supporting ongoing optimisation of energy efficiency measures.Expert assessment report on expected vs. actual performance
The OutPHit project investigated nine case study buildings, comparing data from pre- and post-refurbishment conditions to assess the impact of deep retrofits on energy use, indoor air quality, and thermal comfort. The results show that installing mechanical ventilation with heat recovery (MVHR) significantly improves indoor air quality, while thermal comfort is achieved with minimal energy use after retrofit. The online monitoring platform played a key role in analysing large datasets, ensuring accurate performance evaluation, and offering valuable insights for future projects on building performance at scale.
Concept note for the performance verification of energy-efficient buildings
Verification of actual building performance has the potential to be the ultimate quality assurance step in delivering highly efficient buildings. The outPHit consortium is therefore developing a verified performance certification scheme as a standard step for final approval of deep retrofits to the EnerPHit Standard. This concept note outlines the consortium’s plans.
Certification Criteria for verified building performance
This report outlines the criteria for evaluating a building’s performance within the OutPHit project, focusing on a comprehensive efficiency assessment that balances Living Quality (useful outcome) with Energy Performance (effort spent). Building on methodologies from previous OutPHit deliverables, the approach integrates living quality indicators such as thermal comfort, indoor air quality, and airborne fungal spores, with energy consumption data normalised for weather and user behaviour. The criteria ensure a streamlined, largely automated process for performance evaluation, accounting for measurement uncertainty and offering a holistic view of building efficiency.
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