Certified assessments under SANS 1544:2014. Mandatory for qualifying buildings. The measured baseline for every improvement that follows.
An Energy Performance Certificate is a certificate issued by a registered professional in accordance with SANS 1544:2014, displaying a building's measured energy consumption per square metre — expressed as kWh/m²/annum.
Energy efficiency is graded on a colour-coded scale from A to G. A "D" score represents best practice, benchmarked against minimum requirements in SANS 10400-XA:2021. Compliance is not documentation. It is measured performance.
Mandatory For
The EPC displays a building's measured energy performance — calculated by dividing net energy consumption by the net floor area of the building.
Figure 1: Building Energy Performance (BEP)
Buildings are graded on a colour-coded scale. A "D" score represents the minimum requirement (best practice benchmark) per SANS 10400-XA:2021.
Figure 2: EPC Performance Scale (SANS 10400-XA:2021)
The EPC mandate is issued under the National Energy Act (Act No. 34 of 2008). Failure to publicly display an EPC is in contravention of this Act.
Accounting officers and building owners mandated to display and submit EPCs. Initial deadline: 07 December 2022.
First amendment promulgated, extending the deadline for compliance to 07 December 2025.
Building owners and accounting officers required to register their buildings within 12 months of the amendment's promulgation.
As stated in the National Energy Act 34 of 2008, building owners and/or accounting officers will be guilty of an offence:
A fine not exceeding five million Rand
Imprisonment for a period not exceeding five years
Both such fine and such imprisonment may be applied concurrently
The following building classifications are mandatory to obtain and display an EPC. Size and operational requirements also apply.
Minimum net floor area requirement
Government occupied and operated
| Class | Occupancy | Description |
|---|---|---|
| A1 | Entertainment & Public Assembly | Eat, drink, dance or participate in recreation |
| A2 | Theatrical & Indoor Sport | Theatrical, cinematic, orchestral or sports performances |
| A3 | Places of Instruction | Schools, universities and learning institutions |
| G1 | Offices | Multi-storey offices, banks, consulting rooms with lifts; office parks |
Figure 3: Mandatory Building Occupation Classes
The EPC process is structured, systematic, and managed end-to-end by NegaWatt's registered professionals. Building registration is completed via the National Building Energy Performance Register (NBEPR).
Beyond regulatory compliance, an EPC delivers measurable strategic value across seven dimensions.
The EPC is Phase 1 in a structured 12-step pathway to net-zero carbon readiness — establishing the measured baseline that makes every subsequent intervention accountable and trackable.
Source: Adapted from GBCSA (2021)
Obtaining an EPC is not merely a compliance exercise — it is a strategic business decision. Verifiable data. Lower operating costs. Enhanced market value. A credible commitment to sustainability.
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