Energy Efficiency is self-explanatory, reflecting how effectively energy that is needed around the property is used. A higher rating means a more efficient use of energy. Environmental Impact is essentially a measure of how much carbon dioxide (CO2) is emitted from the property. The higher a rating on the Environmental Impact, the less CO2 is emitted.
EPCs show the current and potential energy usage of a property through the government's approved Standard Assessment Procedure (SAP). The basic underpinning of the SAP rating is a points-based system ranging from 0 to 100. When a property has an EPC assessment it is given a SAP rating with a higher score denoting more efficiency.
The SAP score has been divided into seven category bands that summarise a property's energy efficiency and environmental impact:
|A||92 - 100 SAP points (most efficient)|
|B||81 - 91 SAP points|
|C||69 - 80 SAP points|
|D||55 - 68 SAP points (minimum for Solar Feed-in Tariff)|
|E||39 - 54 SAP points|
|F||21 - 38 SAP points|
|G||0 - 21 SAP points|
The Department of Energy and Climate Change (DECC) has established that a property must have a minimum EPC rating of category D in order to receive the full Feed-in Tariff.
Properties will need at least 55 SAP points to be eligible to achieve a D rating. DECC have claimed that around 55% of UK domestic properties and approximately 65% of all commercial properties are already at this level.
EPC assessments can be arranged through any registered organisation and vary in cost. They are required before Feed-in Tariff applications can be submitted. 2020SolarPV are able to arrange this for you:
There are quite a few ways you can improve energy efficiency to help achieving a D rating:
|Condensing Boiler||47 SAP Points|
|Cavity Insulation||13 SAP Points|
|Roof Insulation||10 SAP Points|
|Cylinder Stat ad Insulation||8 SAP Points|
|Double Glazing||4 SAP Points|
|Low Energy or LED Lighting||2 SAP Points|
|Solar water heating||1 SAP Point|
A domestic EPC remains valid for a period of 10 years, or until alterations affect the rating.
There are certain exemptions for the category D requirement for some properties:
We will be able to advise on how these may apply - call on 01386 80 2020 or get in touch!
2020 Heating Limited , trading as 2020 Solar PV. Registered in England, Incorporated 1 December 2010
UK Company # 7456512 ; VAT Registration # 106 4420 53
Registered office : West View House, Neweys Hill, Northwick, Worcester, WR3 7AL
Operational office : The Old Rectory, Church Road , Strensham, Worcs, WR8 9LW