Questions
The questions we are actually asked, answered with the numbers behind them rather than a sales pitch.
Everything below assumes the Nigerian grid at 230 V / 50 Hz.
Inverter size is set by your peak demand, not by how much energy you use in a day. We total the wattage of everything you run, apply a diversity factor because you never run all of it at once, then add 25% headroom. A typical Nigerian family home lands between 6 kW and 12 kW. A one or two bedroom apartment with no air conditioning is often well served by less. You can calculate yours free at https://www.pdomhub.com/system-sizing.
Battery capacity is set by how much energy you use after dark, plus a reserve for cloudy days. We size for your night load at the depth of discharge Deye recommends for that battery — 80% on the SE-F series, 90% on the RW series — then add 20% margin and check the bank can deliver the inverter’s rated current. As a rough guide, a home using 7 kWh overnight needs about 8.4 kWh of usable storage — comfortably one Deye RW-G10.6 at 9.58 kWh usable, or three of the 5.12 kWh SE-F5 at 4.10 kWh each.
Enough to replace your full daily consumption within the sun hours your location actually gets. We divide daily kWh by peak sun hours and a 78% system derate. In Lagos, at 4.4 peak sun hours, a home using 20 kWh a day needs roughly 5.8 kWp — about nine 650 W panels, occupying around 24 m² of roof.
We do not publish fixed prices, because the honest answer depends on your load. The same house with two air conditioners and the same house without them need materially different systems. We quote after a load assessment and a site survey, and the quotation names every component and its quantity so you can compare it against anyone else’s. Any price quoted for us elsewhere is not authoritative — contact us on 0806 849 5016.
A generator costs little to buy and a great deal to run; solar is the reverse. A generator burns fuel every hour it runs, needs servicing, makes noise and cannot run overnight unattended. A solar and battery system has a high initial cost and then runs at close to zero marginal cost for years. Most of our customers keep the generator as a backstop and find it runs a fraction as often.
Yes, and routinely. A 1.5 HP inverter air conditioner draws about 1,100 W while running and roughly three times that for a moment on start-up. What matters is that the inverter can absorb that surge — Deye hybrid units deliver twice their rated power for 10 seconds — and that the battery bank holds enough energy for the hours you want it running overnight.
Yes, with the right sizing. Pumps are inductive and draw around three times their rated power on start-up: a 1.5 HP borehole pump rated at 1,100 W can momentarily pull over 3 kW. We account for that surge when choosing the inverter, and where a pump is unusually large we specify a soft starter rather than oversizing the whole system.
Yes, and it is often the sensible route. Deye lithium batteries parallel up to 32 units, so storage can grow as your budget or your load grows without replacing what you already own. The decision to get right at the start is the inverter, since that sets the ceiling on what the system can ever deliver.
At night the battery carries the load; that is what it is sized for. During extended cloud the system draws from the grid or a generator to top up the battery, and the inverter manages that switching automatically without interrupting your supply. We size using conservative peak sun hours deliberately, so systems still perform in the rainy season and through harmattan haze rather than only in March.
Yes. Offices, shops, clinics, schools, guest houses and serviced apartments are a core part of what we do. The design question differs from a home: a business needs uninterrupted supply during working hours rather than overnight autonomy, which usually means a larger array relative to the battery bank. Our 10 kW and 12 kW single-phase units cover most small commercial premises.
Yes. The Deye SUN-16K-SG05LP3-EU-SM2 is a 16 kW three-phase hybrid inverter at 230/400 V, accepting up to 32 kW of PV across two MPP trackers and passing through 70 A of grid supply. It suits factories, workshops, cold rooms, event centres, hotels and large estates. Larger loads are handled by paralleling units, which we specify at survey.
Yes, and cold rooms are among the strongest cases for it, because the load runs continuously and the cost of losing power is high. A cold room compressor draws around 2.2 kW with roughly a 60% duty cycle and a three-times start-up surge. These systems are battery-heavy by design, since the load does not stop when the sun does.
Each JinkoSolar 650 W module occupies about 2.7 m² and each 715 W module about 3.11 m². A 20 kWp commercial array therefore needs roughly 85 to 95 m² of unshaded roof. Where roof area is the constraint we specify the higher-efficiency module; where mounting cost is the constraint we specify the higher-wattage one.
Deye hybrid inverters switch between solar, battery, mains and generator without dropping the load, communicate directly with lithium battery management systems, and are supported by a parts and service network in Nigeria. They carry 5 years of warranty as standard, extendable to 10. Every unit we supply is the 230 V / 50 Hz specification that matches the Nigerian grid.
LiFePO4 — lithium iron phosphate — is a lithium chemistry chosen for safety and cycle life rather than for maximum energy density. The Deye RW-G10.6 is rated beyond 6,000 cycles, where a tubular lead-acid battery typically manages several hundred. It also tolerates deeper discharge, so more of its rated capacity is actually usable: we size at the 80–90% Deye recommends for the specific battery, against roughly 50% for lead-acid.
The temperature coefficient. Every solar panel loses output as it heats up, and Nigerian rooftops get very hot. The JinkoSolar Tiger Neo III 650 W loses 0.26% of its power per degree above standard test conditions, which is materially better than older P-type modules. They are also bifacial, generating from reflected light on the rear face, and carry a 30-year linear power warranty.
Often yes, and we will tell you honestly when it is not worth it. Deye hybrid inverters accept both lead-acid and lithium batteries at 40 to 60 V, so an existing 48 V bank can usually be carried over. Mixing old and new lithium batteries in one bank is not advisable, since the weakest pack limits the whole string.
Yes. The Nigerian grid runs at 230 V and 50 Hz. Inverters built for North America run at 120/240 V split phase and 60 Hz and are not suitable, even though the model numbers look similar — for example, Deye’s SUN-10K-SG02LP2-US-AM3 is the American unit and the SUN-10K-SG02LP1-EU-AM3 is the one for this market. Check the suffix before you buy from anyone.
Yes. PDO Mekaddishkem Services Limited is based in Lagos and installs across nationwide across nigeria. Our sizing adjusts generation estimates for six Nigerian solar zones, because the same array produces meaningfully more in Maiduguri than in Port Harcourt.
Most residential installations are completed within one to three days on site, once the equipment is available. That covers mounting, cabling, protection devices, termination, configuring the inverter for your load profile and generator, and testing under load. Commercial and three-phase work takes longer and is scheduled after the survey.
Deye inverters carry 5 years as standard, extendable to 10. Deye lithium batteries carry 5 years and are rated beyond 6,000 cycles. JinkoSolar modules carry a 12-year product warranty and a 30-year linear power warranty, guaranteeing roughly 88% of original output at year 30. Warranty terms are the manufacturers’ and we support the claims process.
We commission it, test it under load, and show you how to read it — what the numbers on the display mean, what normal looks like, and when to call us. Warranty support continues for the life of the equipment. You can reach us on 0806 849 5016 by phone or WhatsApp during monday – saturday, 8:00 – 18:00 wat.
Work it out yourself
Tell it what you run and for how long. It calculates your daily consumption, peak demand and overnight reserve, then names the exact inverter, battery and array — in about two minutes.
Find My Solar SystemIntelligent Solar Energy. Reliable Power.
Two minutes with the sizing tool, or one conversation with our team. Either way you end up with a specification rather than a guess.
Monday – Saturday, 8:00 – 18:00 WAT
