What solar installation really costs in Nigeria
Installation labour is usually 10–20% of the total solar project cost in Nigeria. For a standard 3 kVA residential system, expect to pay ₦80,000 to ₦200,000 for installation alone. For larger commercial systems, installation labour can reach ₦400,000 or more.
In most installer quotes, labour is bundled with the full system price rather than quoted separately. Understanding what installation includes — and what should never be left out — helps you evaluate quotes intelligently and avoid costly surprises after commissioning.
Solar installation labour charges in Nigeria — by system size
| System size | Typical home | Labour cost (₦) | Install duration | Team size |
|---|---|---|---|---|
| 1–2 kVA | 1–2 room flat | ₦60,000 – ₦120,000 | 1 day | 2 technicians |
| 3 kVA | 3-bedroom home | ₦80,000 – ₦180,000 | 1–2 days | 2–3 technicians |
| 5 kVA | Home with AC | ₦120,000 – ₦240,000 | 2–3 days | 3 technicians |
| 8–10 kVA | Large duplex | ₦200,000 – ₦350,000 | 3–5 days | 3–4 technicians |
| 15–20 kVA | Commercial / estate | ₦300,000 – ₦600,000+ | 5–10 days | 4–6 technicians |
Why installation costs vary between companies
Premium installers charge more because they send experienced, certified engineers rather than untrained workers, include proper tools and safety equipment, use quality mounting hardware, and provide a commissioning report. Cheap labour usually means shortcuts — poor earthing, undersized cabling, or improper inverter settings that can cause equipment failure later.
What installation should and shouldn't include
Not all installation quotes include the same things. Here's what a professional installation must include — and what you should negotiate:
The solar installation process in Nigeria — step by step
Site visit & final design confirmation
Before installation day, a reputable company visits your property to measure the roof, assess the wiring, confirm panel placement, and finalise the system design. This should happen at no charge as part of your quote process.
1–2 hoursPanel mounting
The team installs the aluminium racking system on your roof, then mounts and secures the solar panels. Waterproofing of all roof penetrations is done at this stage. For a 6-panel system, this typically takes 3–4 hours.
3–5 hoursDC wiring & combiner box
DC cables run from the panels to the inverter location, connected via a combiner box or string connections. Proper conduit and cable management should be used — not just loose wire runs.
1–3 hoursInverter & battery installation
Inverter mounted in a ventilated indoor location (not direct sun). Battery bank installed nearby. Both connected to your main distribution board with appropriately sized AC breakers.
2–4 hoursEarthing & safety checks
System earthing installed and verified. All breakers and fuses checked. A reputable installer uses a multimeter to verify all connections before commissioning.
1–2 hoursCommissioning & handover
Inverter programmed to your specific settings (charging priority, cutoff voltages, generator integration). System switched on and tested under load. You receive a walkthrough of how to monitor and manage your system.
1–2 hours6 red flags in solar installer quotes
No site visit before quoting
Any company that gives you a firm price without visiting your property is guessing. A proper site assessment is essential before finalising a quote.
No itemised quote
Reputable installers provide an itemised breakdown: panels (brand, wattage, quantity), inverter (brand, model, kVA), battery (brand, capacity), hardware, and labour — separately priced.
No written warranty
Verbal warranty promises are worthless. Insist on a written document covering both equipment warranties (from manufacturers) and installation workmanship warranty (from the installer).
Suspiciously cheap quotes
If a quote is significantly cheaper than others for the same specs, something is being cut. Common shortcuts: undersized cables, no earthing, budget unbranded batteries, or incorrect inverter settings.
No post-installation support plan
What happens when something goes wrong in 6 months? Clarify the support process upfront — call-out charges, response times, and what's covered under warranty.
No verifiable track record
Ask for references from recent installations in your area. A company that can't provide 2–3 references from Lagos or your city within the last 6 months is a risk.
Installation questions answered
A typical residential solar installation in Nigeria takes 1–3 days. A small 2 kVA system for a flat can be installed in a single day. A 5 kVA system with multiple battery banks usually takes 2 days. Larger commercial installations can take a week or more. The quote process and component procurement usually takes 1–2 weeks before installation day.
For residential solar installations, formal permits are not typically required in most Nigerian states. For commercial installations or grid-connected systems, you may need approval from your local electricity distribution company (DisCo). Your installer should advise on any local requirements specific to your state or building type.
Yes, to a point. Labour is often one of the more flexible parts of a solar quote, particularly if you're in an area the installer already covers regularly. However, negotiating labour so low that corners are cut is counterproductive — a bad installation will cost more to fix than you saved. Focus negotiations on the full system package price rather than specifically on labour.
Typical installation team costs: a lead engineer earns ₦15,000–₦30,000 per day; technicians earn ₦8,000–₦15,000 per day. For a 2-day job with 3 people, raw labour is ₦62,000–₦135,000. The installer adds overhead (transport, tools, insurance, supervision) and profit margin on top of that. A quoted labour cost of ₦100,000–₦180,000 for a standard residential install is generally fair.
More cost information
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