Compliance
Can I DIY a solar or battery install in South Africa?
Buying hardware is easy; commissioning a lawful grid-tied or hybrid system yourself is not. South African installs need a DoL-registered electrician, a CoC to SANS 10142, an NRS 097-approved inverter for grid connection, and usually SSEG registration with your municipality or Eskom. DIY work is a common reason warranties and insurance claims fail.
Updated 26 October 2026 · Africa/Johannesburg
What goes wrong with DIY
- No valid CoC — problems when you sell the house or claim on insurance
- Wrong charge voltages / missing BMS communication — battery damage and declined warranties (see Pylontech checklist)
- Inverter not on the metro’s approved / NRS list — export refused or disconnection risk
- Undersized cable, missing SPDs, unsafe changeover — fire and shock risk
Sensible DIY vs don’t
- Reasonable: reading your bill, comparing quotes, photographing the DB for the electrician, researching brands
- Not reasonable: live DB work, grid-tied inverter commissioning, lithium pack wiring without the manufacturer’s protocol, “temporary” plugs for EV charging every night
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Related answers
Sources
- SANS 10142 / CoC practice — registered installation electrician requirement
- NERSA SSEG registration clarifications (≤100 kW with distributor; >100 kW with NERSA when grid-connected)
- Manufacturer warranty Ts&Cs that void cover for unauthorised installs (brand-specific letters)
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