1. What is UK Energy Performance Certificate?

The Energy Performance Certificate (EPC) rates how energy efficient a building is with grades from A (most efficient) to G (least efficient). All homes bought, sold or rented in the UK require an EPC.

2. How Does the Calculator Work?

The calculator uses the standard UK EPC rating system:

Where:

• A rating: 92-100 points (most efficient)
• B rating: 81-91 points
• C rating: 69-80 points
• D rating: 55-68 points
• E rating: 39-54 points
• F rating: 21-38 points
• G rating: 1-20 points (least efficient)

Explanation: The rating is based on the property's energy efficiency score which considers insulation, heating systems, windows, and renewable energy sources.

3. Importance of Energy Rating

Details: EPC ratings are legally required for property transactions, help identify energy-saving improvements, and can significantly impact property value and energy bills.

4. Using the Calculator

Tips: Enter your property's energy efficiency score (1-100) based on an official assessment or estimated from your property's features.

5. Frequently Asked Questions (FAQ)

Q1: How long is an EPC valid?
A: EPCs are valid for 10 years from the date of issue.

Q2: Who can produce an official EPC?
A: Only accredited domestic energy assessors can produce legally valid EPCs in the UK.

Q3: What affects the energy rating?
A: Insulation, heating system, windows, lighting, renewable energy sources, and building materials all contribute to the rating.

Q4: Can I improve my rating?
A: Yes, through insulation improvements, upgrading heating systems, installing double glazing, and adding renewable energy sources.

Q5: Is there a minimum EPC requirement?
A: Rental properties in England and Wales must have at least an E rating (with some exceptions).