Eskom’s New Rooftop Solar Rules: A Step Forward

Posted by Geronimo Lebina on 04 November 2025, 12:30 SAST

A brighter horizon for some homeowners 

Eskom’s latest update to rooftop solar connection rules has been hailed as a breakthrough for South Africans eager to escape rising electricity prices and recurring load-shedding.

The power utility has scrapped the requirement for a professional engineer’s sign-off on many small-scale solar systems, allowing Installation Electricians (IE) or Master Installation Electricians (MIE) registered with the Department of Labour to approve installations for Eskom-direct customers. 

The change trims red tape and cuts thousands of rands in compliance costs, making legal grid-tied solar installations far easier for households served directly by Eskom.

It also aligns with Eskom’s stated goal of accelerating safe, legal embedded generation as part of the national drive toward energy resilience and decentralisation. 

“We want to make it as simple, safe, and cost-effective as possible for customers to connect legally, while ensuring grid stability,” Eskom said in a statement quoted by BusinessTech (28 Oct 2025). 

The “big catch” — major cities left out 

The relief, however, does not apply to households connected through municipal distributors such as the City of Johannesburg, Cape Town, Tshwane, or eThekwini.

Those residents must still obtain sign-off from an ECSA-registered professional engineer or technologist — a process that adds both cost and delay. 

This creates an uneven landscape: 

• In Eskom-supplied towns and rural areas, homeowners can move quickly to install legal rooftop solar systems. 

• In major metros, households remain bound by the old, engineer-approval rules — sometimes adding R5 000–R15 000 to total project costs and weeks to approval timelines. 

Municipalities argue the stricter requirement ensures grid protection and technical safety. Yet, critics say the dual-rule framework undermines national consistency and slows urban solar adoption where demand is highest. 

NERSA’s oversight and the regulatory maze 

The National Energy Regulator of South Africa (NERSA) still requires all embedded generation systems (connected to the national or municipal grid) to be registered — even when no power is exported.

Only truly off-grid systems that operate in isolation are exempt. 

This layered compliance structure means an average homeowner must navigate both Eskom’s technical requirements and NERSA’s registration process, and in many cities, municipal permitting as well. 

Energy analysts warn that fragmented standards could stall the very decentralised generation boom South Africa needs to stabilise supply. 

Implications for investors and installers 

1. Market acceleration in Eskom-supply areas

Installers serving Eskom-direct customers can expect a surge in demand, particularly in Gauteng’s peri-urban zones, Limpopo, the Free State and Mpumalanga — regions where Eskom supplies households directly. Lower soft costs mean more systems become financially viable, especially after the 2025/26 ~12.7% electricity tariff increase. 

2. Uneven regulatory risk

For investors or national solar providers, the divide between Eskom-supplied and municipal markets complicates expansion planning. Business models must account for differing sign-off, metering, and export-credit structures in each municipality. 

3. Policy harmonisation opportunity

Industry associations such as SAPVIA and SEA are urging municipalities to align their SSEG standards with Eskom’s simplified approach. A unified framework would reduce compliance duplication and unlock economies of scale for the rooftop sector. 

4. Positive signal for the broader energy transition

Eskom’s easing of rules aligns with its wider initiatives — including the rollout of 6.2 million smart meters by 2027 and plans to eliminate load-reduction for 1.7 million customers. Together, these steps aim to modernise the grid and enable distributed generation at scale. 

Economic context — tariffs and fiscal backdrop 

With NERSA-approved tariff hikes pushing household electricity costs above R4.18 per kWh, rooftop solar economics are improving.

Households consuming 600 kWh a month can now recover a standard 5 kW system’s cost in roughly three to four years, depending on export-credit rates. 

At the macro level, stronger-than-expected SARS tax receipts (R18 billion above forecast) slightly ease fiscal pressure, but SARB Governor Lesetja Kganyago’s warnings about administered-price inflation underscore the political tension between keeping tariffs “cost-reflective” and controlling consumer inflation. 

What to watch next 

• Municipal alignment: Will major metros adopt Eskom’s relaxed sign-off model, or maintain engineer-only approval? 

• NERSA consultation (13 Nov 2025): Industry awaits the regulator’s decision on Eskom’s proposed generator-losses charge, which could alter export credit values for solar producers. 

• Implementation pace: Eskom’s ability to enforce safety and registration while scaling simplified rules will determine whether the policy drives genuine rooftop growth or invites new compliance confusion. 

Bottom line 

Eskom’s simplified rooftop-solar rules are a welcome but partial victory for South African households.

They cut bureaucracy, lower costs, and open the door to faster adoption — but only for those outside major metropolitan grids.

For investors and installers, opportunity beckons in Eskom-direct markets, while urban deployment remains tangled in outdated municipal regulations. 

Unless municipalities follow Eskom’s lead, the “big catch” may continue to cast a long shadow over South Africa’s solar revolution.