The energy efficiency of a building is calculated by measuring the energy consumed in heating, ventilation, lighting, domestic hot water, etc. during a year under normal conditions of use and occupation.
You can change your property to make it a more energy efficient home

• Reduce your heating or use a secondary heating source
• Use a new, energy efficient boiler
• Fit insulation
• Double or triple glazing
• Draught proofing
• Generate your own energy from renewable sources
• Energy efficient fittings