Energy Performance Certificates (EPCs) play a crucial role in assessing the energy efficiency of buildings. However, recent discussions have raised questions about whether the system fairly reflects the true performance of properties across different regions of the UK. Are EPCs biased? Let’s explore the issue of regional inequality and the potential flaws within EPC scoring.
What Are EPCs?
An Energy Performance Certificate rates a property’s energy efficiency on a scale from A (most efficient) to G (least efficient). It also includes a recommendation report with suggestions to improve a building’s rating, making it essential for property sales, rentals, and compliance with legal regulations.
The Problem of Regional Inequality
Properties in colder or rural areas, particularly in Scotland, Wales, and the North of England, tend to receive lower EPC ratings despite owners implementing energy-saving measures. Why? The EPC algorithm heavily factors in heating costs and standardised assumptions that don’t always reflect real-life usage or climate conditions.
For example:
A stone cottage in the Scottish Highlands might be well insulated but still score poorly due to the heating method or external wall construction.
Urban properties with access to mains gas often score better, even if they’re less energy-efficient in practice.
EPC Calculation Biases
Several aspects of the current EPC methodology contribute to perceived unfairness:
Fuel Type Bias: EPCs often favour gas-heated homes, penalising properties using electricity, oil, or biomass—even if those systems are greener or more efficient.
Default Values: If specific details about insulation or materials aren’t available, assessors must use default assumptions that can underestimate efficiency.
Occupancy Assumptions: EPCs calculate based on average usage, not tailored to how real occupants live.
Impact on Property Owners
Owners in certain regions may find it harder to meet Minimum Energy Efficiency Standards (MEES) or attract buyers and tenants if their EPC rating is low—even when the property performs well in practice. This can lead to:
Reduced property value
Higher upgrade costs to meet letting requirements
Difficulty in accessing green finance
Toward a Fairer EPC System
The UK government has acknowledged the need to reform EPC methodology. Potential improvements include:
Adopting real-world energy usage data
Removing fuel-type bias in scoring
Enhancing training and consistency for assessors
How Urgent EPC Can Help
At Urgent EPC, we specialise in delivering fast, reliable, and accurate EPCs across London and Greater London. Our certified Domestic Energy Assessors and Same-Day EPC services ensure you get clarity and compliance—without delays.
Need Expert Help?
📞 Call Us: +44 7741 812 864
📧 Email: info@samedayepc.co.uk
