What is the biggest red flag on a SA solar quote?

No CoC / registered electrician on the timeline, or an inverter without the NRS / municipal approval evidence for your metro. Export payback that assumes retail buy rates is another walk-away signal.

Are cheap EV wallboxes under R10,000 safe to buy in South Africa?

Sometimes the hardware is fine, but grey imports often lose app/firmware support and local warranty paths. Prefer brands with SA stock and a CoC install among peers.

Buying & compliance

What are the red flags on a South African solar or EV installer quote?

If the quote skips CoC, NRS paperwork, SSEG responsibility or a labour-vs-hardware split, pause. Real savings need a system you can register, insure and monitor — not the cheapest PDF on WhatsApp.

Updated 26 October 2026 · Illustrative ranges — not a formal quote or legal advice.

Answer first: Walk away from quotes that skip CoC, NRS-approved inverters, written SSEG responsibility, or a clear labour-vs-hardware split. Savings come from a system that is registered, monitored and warrantied — not from the cheapest WhatsApp PDF.

Red flags on any solar or EV quote

No registered electrician / no CoC on the timeline. Fixed PV, BESS and EVSE are electrical installations. “We’ll sort paperwork later” is how insurance claims die.
Inverter not on the municipal / NRS list you actually need. Ask for the certificate page, not a brochure claim — NRS inverters, NRS 097.
Payback maths that assume crisis tariff hikes forever or export credits that look like retail buy rates. Metro export in 2026/27 is roughly 108–185 c/kWh incl. VAT depending on city — far below many import rates (feed-in).
Battery sold only on sticker kWh without usable kWh, chemistry (prefer LiFePO₄ for home cycling unless you have a specialist reason), cycle/throughput warranty, and DoD — LiFePO₄ vs NMC.
Grey-import EV wallbox under R10k with no local firmware/app support. EnergyBee and EVCI-class consumer notes flag dead apps and warranty pain; prefer local stock among peers.
“You don’t need SSEG / municipal registration.” False for grid-tied export in metros that require it — SSEG registration.
One site visit never happened. Roof pitch, DB photos, earth leakage history and estate rules change designs. Desktop-only quotes are guesses.
Pressure to pay cash upfront for the full amount with no milestone schedule or hardware custody clarity.

Scripts to challenge (politely)

Script	Better question
“Export will pay for the system.”	Show the metro annexure rate and my expected export kWh.
“Batteries are optional fluff.”	Model Stage 4–6 cover for my essential loads separately from bill savings.
“This inverter is the same as the NRS one.”	Email the certificate PDF matching the exact model.
“V2G will make you money next year.”	Where is the metro product and tariff code? (Usually nowhere yet — V2H/V2G.)
“DIY the EV charger; it’s just a plug.”	Who issues the CoC and carries the insurance risk? (DIY EV risks)

Documents that should exist before you pay the balance

Signed scope: panel count/wattage, inverter model, usable battery kWh, EVSE kW, labour inclusions.
Single-line diagram and DB schedule.
CoC commitment and electrician registration number.
SSEG / municipal application responsibility (who files, who pays fees).
Warranty PDFs (panels, inverter, battery, workmanship) with SA claim path.
Monitoring app credentials handed over on commissioning day.

EV-specific gotchas

Ordering 22 kW three-phase with a single-phase supply; skipping load management on a shared estate feeder; using visitor sockets overnight; assuming public DC prices match SAEV Richmond’s ~R3.49/kWh (DriveElectric) everywhere — typical GridCars-class DC is nearer ~R7.35/kWh in the same coverage. Size the wallbox to the car’s onboard AC limit — power levels.

How to compare two quotes fairly

Normalise to: installed DC kWp, usable battery kWh, inverter continuous AC kW, backup loads covered, EVSE included or not, and who owns the SSEG process. Ignore glossy “AI-optimised” language. Use check a quote and structured briefs via get quotes so installers answer the same questions.

When a second opinion is mandatory

Supply upgrades, three-phase conversions, roof structural steel, estate litigation risk, or any quote that is >20% cheaper than two peers without a clear scope cut. Cheap is fine when the scope is honestly smaller — not when compliance was deleted.

Educational consumer desk — not legal advice. Municipal bylaws and scheme rules win arguments.

Finance and insurance red flags

Lenders and insurers increasingly ask for CoC, SSEG approval and serial numbers. A quote that cannot produce those artefacts on commissioning puts bond drawdowns and claims at risk. If the installer wants you to “self-declare” an unregistered grid-tied system, that is your risk — not theirs. Keep a folder: CoC, NRS certificate, battery warranty PDF, SSEG letter, as-builts, serials, app logins. Photograph the DB before and after works.

Wholesaler vs installer confusion

Buying hardware from a reputable SA wholesaler (including peers covered on our wholesaler desk) does not replace an installation contract. Someone still has to design, earth, commission and register. DIY PV remains a compliance and insurance minefield — DIY risks. For EVSE, a portable Mode 2 cable is an emergency tool, not a daily 32 A plan on a kitchen socket.

Aftercare that proves the quote was real

Ask who answers the phone when monitoring shows zero yield for three cloudy-but-not-that-cloudy days. Ask about surge device replacement after nearby strikes. Ask how firmware updates land on the inverter and the wallbox. Quotes silent on aftercare often disappear after final payment. Prefer written SLA hours even if informal — email beats memory.

A 15-minute pre-sign checklist

Models and serial families match the NRS / datasheet pages attached.
Usable battery kWh and warranty throughput are numeric, not vibes.
EVSE amperage cap and load-management method are stated.
SSEG applicant named; fees owned.
Milestone payments tied to delivery, install, CoC, and registration.
Two references with systems older than 18 months in your metro.

If any line fails, revise the quote before you celebrate the discount.

Public-network claims vs your driveway

Sales decks sometimes wave at public DC tariffs to justify skipping a home wallbox. Run the numbers the other way: home energy at typical 2026/27 metro rates often lands near R53–R85 per 100 km, while public DC frequently sits nearer R6–R8/kWh. SAEV Richmond’s ~R3.49/kWh (DriveElectric) is a battery-backed outlier, not your office park default. If an installer leans on public pins instead of a CoC’d wallbox for daily commuting, treat that as a red flag for operating-cost literacy — public networks, cost to charge.

Trust the paper trail

Independent desks like Solar News 24 exist so you can compare scopes with primary metro PDFs open in another tab. If a claim cannot be traced to NERSA, a municipal annexure, an OEM warranty PDF or a named press piece with a date, downgrade it. Marketing adjectives are not evidence.