15kW Solar System for Nigerian Homes & Businesses
A 15kW hybrid solar system typically costs ₦7,000,000–₦10,000,000 fully installed in Nigeria, and covers a medium home, office, or small shop running lighting, cooling, refrigeration, and electronics through the day and into the evening — replacing most or all of a 10–15kva diesel generator's daily runtime.
Prices last verified: 2026-08-08. See sources below.
15kw–30kw
our most-installed range
10 yr
panel & workmanship warranty
2–3 wks
typical install time
15kW System Specifications
A standard 15kW hybrid configuration for a Nigerian home or small business. Panel count, battery size, and roof area shift depending on your available space and how many hours of battery backup you want — this is our most common configuration at this size.
| System capacity | 15kW hybrid solar system |
|---|---|
| Solar panels | ≈28 × 550W monocrystalline panels |
| Inverter | 15kVA hybrid inverter (single-phase config) |
| Battery storage | Lithium-ion, 15kWh–45kWh depending on backup hours needed |
| Roof / land area required | ≈90–110 sqm of unshaded roof or ground space |
| Typical daily output | ≈60–80 kWh/day (Nigeria average irradiance) |
| Installed price range | ₦7,000,000–₦10,000,000, fully installed |
| Installation timeline | 2–3 weeks from deposit to commissioning |
| Warranty | 10 years panels & workmanship; 5–10 years inverter/battery (brand-dependent) |
Panel and inverter pricing benchmark: Olasupo Energy installed-project data and current equipment supplier pricing, 2026-08-08. Final price depends on roof type, cable run length, and battery capacity chosen.
What a 15kW System Actually Powers
A useful way to size-check: 15kW comfortably runs a medium home, office, or shop through the day and into the evening. Here's a typical load for a property this size.
Air conditioning
6 units of 2.0HP split ACs running through the day
Refrigeration
2 commercial or home fridges (500L) running continuously
Lighting
40 LED fittings across a full home or shop
Fans
12 ceiling or standing fans through the day and evening
Entertainment
3 LED TVs and 4 laptops running daily
Wi-Fi & connectivity
1 router keeping the home or office online 24/7
Water & kitchen
1 water pump (1.5HP) and 1 mixer/blender
Ideal for
Medium homes, offices, shops, and small factories
Not sure 15kW fits your load? Send us your equipment list on WhatsApp and we'll size it properly before you commit to a number.
Not Sure 15kW Is Right for You?
Compare against neighboring sizes to find the closer fit.
Ways to Pay for a 15kW System
Most homeowners and small businesses don't pay ₦8.5M upfront — here's how our clients typically structure it.
Full Upfront Payment
Pay the full installed cost at commissioning. Lowest total cost, and savings start immediately from month one.
Staged Payment Plan
Split into deposit, mid-install, and commissioning payments. No interest, spread across the 2–3 week build.
Lease-to-Own Financing
Monthly payments structured below your current diesel spend, so cash flow improves from day one. Available through select partners — ask us for current terms.
What Would a 15kW System Save You?
Enter your current diesel and electricity spend to see your exact payback period and 10-year saving on a 15kW system.
Commercial Solar ROI Calculator
See exactly how much your business saves by going solar
SELECT FACILITY TYPE
We've Built Systems Like This Before
15kW sits squarely in our home and small-business range — here's the kind of work that size of client gets from us.
Home Solar
Rooftop solar systems that keep lights, fans, fridges, and home offices running through outages — sized to your household's real daily usage, not a generic package.
Backup power for essential appliances during grid outages
Battery storage sized to your household's overnight needs
Installed and commissioned by our own certified technicians
3–7 days
typical install time
10+ yrs
warranty coverage
Business & Commercial
Shops, offices, hotels, and salons running on solar instead of diesel — cutting daily generator costs while keeping operations online through every outage.
Designed around your peak operating hours and equipment load
Reduces or eliminates daily diesel generator running costs
Flexible financing available with little to no upfront cost
18–30 mo
typical payback
100%
uptime through outages
Farms & Agribusiness
Irrigation pumps, cold rooms, and milling equipment powered without fuel — protecting perishable stock and keeping farm operations running on schedule, rain or shine.
Solar-powered irrigation pumps that run without diesel refills
Cold storage kept online to protect perishable harvests
Sized for milling, drying, and other processing equipment
0
diesel refills needed
20+ yrs
panel lifespan
Manufacturing & Factories
Full production lines and heavy machinery on hybrid solar systems — engineered in-house for factory-scale loads, from 100kw sites up to multi-megawatt installations.
Systems sized from 100kw up to 5MW for industrial loads
Installed with zero interruption to ongoing production
Hybrid battery and inverter setup for round-the-clock power
100kw–5MW
system range
8–12 wks
install time (500kw)
What 15kW Clients Say
"15kW comfortably runs our AC units, fridge, and all the family electronics without touching the generator. Installation took under 3 weeks and the team was tidy and professional."
Bukola Adeyemi
Homeowner, Lekki, Lagos
"Olasupo sized the system around our actual equipment list instead of guessing off square footage. Our shop lighting, fridge, and POS system run all day on solar now."
Emeka Obi
Owner, Small Retail Shop, Onitsha
"The staged payment plan made it manageable, and our electricity bill has dropped significantly since commissioning. Would recommend to any medium-size household."
Grace Effiong
Homeowner, Uyo
Reviews collected directly from Olasupo Energy clients. Names and businesses shown with permission.
15kW Solar System — Common Questions
How much does a 15kW solar system cost in Nigeria?
A fully installed 15kW hybrid system typically costs ₦7,000,000–₦10,000,000, depending on battery capacity, roof condition, and cable run distance. This includes panels, inverter, battery storage, mounting, and installation labor.
How much roof or land space does a 15kW system need?
Around 90–110 square meters of unshaded space. Roof-mounted is standard for most homes and shops; ground-mounted works where roof space or structural strength is limited.
How long does installation take?
2–3 weeks from deposit to commissioning for a standard 15kW install, covering procurement, mounting, wiring, and testing. Installation is scheduled to minimize disruption to your daily routine.
Is 15kW enough to replace my generator completely?
For most medium homes and small offices running typical daytime and evening loads, yes — 15kW with an appropriately sized battery can cover the majority or all of daily and evening operating hours. Heavy loads like multiple large ACs or industrial equipment may need a larger system. We size this properly before you commit.
What warranty comes with a 15kW system?
10 years on panels and our installation workmanship, with 5–10 years on the inverter and battery depending on the brand selected. We'll walk through exact terms for your chosen equipment before you sign off.
Ready to Spec Your 15kW System?
Send us your equipment list and roof or land space on WhatsApp. We'll confirm 15kW is the right size and send back a real, itemized quote — free, no obligation.
WhatsApp Olasupo Energy