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What is an Energy Performance Certificate?

An EPC indicates building energy efficiency by calculating annual energy consumption per square meter of occupied net floor area. The certificate displays a colour-coded rating from A (most efficient) to G (least efficient), providing a clear benchmark for building performance.

About GigaBess EPC

GigaBess EPC is a dedicated service offering under GigaBess, providing end-to-end Energy Performance Certificate (EPC) compliance support for building owners, property managers, and accounting officers across South Africa.


We understand that navigating EPC regulations can be complex and time consuming. Our managed service removes the burden — giving you a single, accountable team to handle the entire process from building registration to certificate display.

Why Building EPCs Matter

Encourage Energy Savings

Identify improvement opportunities and reduce waste.

Track Building Energy Use

Create a reliable benchmark for annual performance.

Reduce Emissions

Lower pollution and greenhouse gas impact through efficiency.

Improve Standards

Support better future building standards in South Africa.

Authorities and Roles

DMRE / DEE

Develops regulations and monitors compliance

SANEDI

Manages national EPC register, issues certificate numbers, and registers EPC professionals.

EPC Ratings (A to G)

Energy performance is based on measured annual energy use divided by occupied net floor area.

A

Very efficient

B–C

Good performance

D

Average / normal benchmark (best-practice baseline).

E–G

Poor performance.

Covered Occupancy Classes

A1

Entertainment / Public Assembly — facilities used for events and public gatherings

A2

Theatres / Indoor Sports Venues — indoor venues with audience or sports occupancy

A3

Places of Instruction — schools and learning environments

G1

Offices — commercial and administrative office spaces

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