Aims of the NT Environmental Standards

• NT homes should be easy and affordable to heat for tenants

• The environmental impact of these properties should be low

• These properties meet the required minimum EPC score of E by 2018

SAP Rating

• The headline figure on an EPC• [Estimated fuel bill (£)]/[floor area

(m2)]

EI Rating

• EI = Environmental Impact• Linked to CO2 emissions• [estimated CO2 emissions

(kgCO2]/[floor area (m2)]

Environmental Standard Levels

• Gold• Silver• Bronze• Basic Compliance

Basic Compliance

Bronze

Silver

Gold

Selecting cost-effective measures

A two tiered approach•Non-fuel switching measures•Fuel switching measures

Assessing compliance with the standard

• An EPC (lodged with the central register) is only legally required for new lettings (and for properties being sold)

• NT intends to go beyond this legal requirement to demonstrate Basic Compliance of all non-listed properties

Non-fuel switching options

• Select measures that apply from table

• Apply in order of cost effect (lowest first)

• Use improvement figure to estimate how much each measure will contribute towards target

Selecting fuel switching measures

• Gas CH generally best option• Off-gas properties can be

challenging, lots of options• Therefore, a hierarchy of

upgrade options has been produced for guidance

Fuel Hierarchy

Non-RdSAP Measures

Some measures will not improve SAP or EI score but will still improve energy efficiency. •Insulate loft hatch•Draughtproof loft hatch•Add louvres to open fans or add fans with louvres•etc...