20kVA Solar System Price in Nigeria (2026)
A complete 20kVA solar system from InfraSol costs ₦13.6M to ₦23M installed, as of October 2026. The InfraSol Home 18 (3 × Growatt SPF 6000 ES 6kW, 18.6kWp of panels) is ₦16.8M with 30kWh of LiFePO₄ battery, or ₦13.6M in its cheaper version with 20kWh. The InfraSol Business 24 (2 × SRNE 12kW hybrid, 24.8kWp of panels) is ₦23M with 60kWh of LiFePO₄ battery, or ₦19.2M in its cheaper version with 45kWh.
20kVA solar system prices
Every system we build at this size, as a full system and as a cheaper version with less battery or fewer panels that you can add to later. Your final price is confirmed on a written quotation after a site survey.
30 panels3 × 6kW3 × 10kWh
40 panels2 × 12kW2 × 30kWh| System | Price | Battery | Panels | Payback |
|---|---|---|---|---|
| InfraSol Home 18cheaper version | ₦13.6M | 20 kWh | 14.9 kWp | 1.5–2.6 years |
| InfraSol Home 18full system | ₦16.8M | 30 kWh | 18.6 kWp | 1.5–2.5 years |
| InfraSol Business 24cheaper version | ₦19.2M | 45 kWh | 19.8 kWp | 1.3–2.3 years |
| InfraSol Business 24full system | ₦23M | 60 kWh | 24.8 kWp | 1.3–2.2 years |
What the price includes
- Jinko Tiger Neo 620W N-type TOPCon (Tier-1) panels
- Installation
- Hybrid inverter: 3 × Growatt SPF 6000 ES 6kW or 2 × SRNE 12kW hybrid
- LiFePO₄ battery, 6-year warranty, 6,000 cycles at 80% depth of discharge
- InfraSol real-time remote monitoring platform
- Automatic switching between solar, battery and grid
What a 20kVA solar system can carry
Large 5-bedroom duplex or small three-phase building running 4 or more ACs.
4 units (1.5HP) together in the day, 2 at night
Three inverters share the load, and on a three-phase supply each one carries a phase.
2 fridges and 2 freezers around the clock
Full property lighting including outdoor and security lights
All
Whole-house TVs, laptops and network equipment
1–1.5HP borehole pump: yes
Yes, several loads a day
Large three-phase motors or welding equipment.
How long the battery lasts at night
30kWh battery (InfraSol Home 18)
At a typical night-time load of 4kW (2 ACs, fridges and security lights), the 30kWh battery runs for about 6.8 hours. The cheaper version's 20kWh runs for about 4.5 hours.
60kWh battery (InfraSol Business 24)
At a typical night-time load of 6kW (chillers, CCTV, security lights and 1–2 ACs), the 60kWh battery runs for about 9 hours. The cheaper version's 45kWh runs for about 6.8 hours.
Who a 20kVA system is for
We build this size two ways. Home 18 uses three Growatt 6kW inverters, which suits a large duplex or a small building on a three-phase supply, one inverter per phase. Business 24 uses two SRNE 12kW inverters for offices, clinics, shops and restaurants that run a 20kVA generator through the working day.
At this scale the case for solar is mostly about daytime load, because that is when a business draws most of its power and when the panels produce. Both systems also come in a cheaper version with fewer panels and less battery, which can be topped up later.
What it saves, and when it pays for itself
Monthly savings against what Lagos homes and businesses pay today for grid and diesel. The middle figure is our base case; the range runs from a Band A home to a site with little grid supply.
Your own numbers depend on your bill and how many hours of grid you get. Enter your monthly bill in the solar calculator to see the size and payback for your home or business.
Pay small small: payment plans
Lease-to-Own: 30% down, the balance over 3 monthly payments, and the system is yours at the end. On the ₦13.6M system that is ₦4,074,900 down and 3 payments of ₦3,361,402.
Energy as a Service: nothing upfront. A flat monthly fee of 50–60% of what you spend on power today, and we own and maintain the system.
See financing optionsCompare other sizes
Frequently asked questions
Get an exact price for your property
Tell us what you run and when. We will confirm the right size and send a written quotation.