Ultimate Guide to Buying Used Generators in Nigeria

Author

Jochebed Gomos

Created

February 8, 2025February 10, 2025

Updated

February 10, 2025February 8, 2025

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Reading time

10 min

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Categories: Electronics, Home Improvement, Workplace

In Nigeria, where power supply can be unpredictable, generators have become a necessity for homes, businesses, and industries. Whether you’re running a small business, powering your home, or keeping your industrial machines running, a generator is a lifesaver. However, buying a brand-new generator can be expensive, especially with the current economic situation. This is why many Nigerians opt for used generators.

But buying a used generator can be tricky. If you don’t know what to look for, you might end up with a faulty machine that drains your wallet in repairs. That’s why we’ve put together this Ultimate Guide to Buying Used Generators in Nigeria. By the end of this article, you’ll know exactly what to look for, where to buy, and how to get the best value for your money.

Table of Contents

Why Buy a Used Generator in Nigeria?

Before diving into the details, let’s address the elephant in the room: why should you buy a used generator in the first place?

Cost-Effective: Used generators are significantly cheaper than new ones. For example, a brand-new 5kVA generator might cost ₦500,000, while a used one in good condition could go for ₦200,000 or less.
Availability: In Nigeria, used generators are more readily available than new ones, especially in local markets and online platforms.
Quick Solution: If you need a generator urgently and can’t afford a new one, a used generator can be a quick fix.

However, the key to a successful purchase is knowing how to identify a good used generator. Let’s break it down step by step.

Steps to Buying a generator

Step 1: Determine Your Power Needs

Before you start shopping, you need to know how much power you require. Generators come in different sizes, measured in kilovolt-amperes (kVA) or kilowatts (kW). Here’s a quick guide:

Small Homes: 2kVA to 3.5kVA (for basic appliances like lights, fans, and a TV).
Medium Homes/Offices: 5kVA to 7.5kVA (for additional appliances like refrigerators and air conditioners).
Large Homes/Businesses: 10kVA and above (for heavy-duty use, including industrial equipment).

Pro Tip: Make a list of all the appliances you want to power and their wattage. Add up the total wattage and add 20% as a buffer. This will help you choose the right generator size.

Step 2: Set a Budget

Used generators come in a wide range of prices depending on their size, brand, and condition. Here’s a rough price guide based on recent market trends (as of 2025):

2kVA Generators: ₦80,000 – ₦150,000
5kVA Generators: ₦150,000 – ₦300,000
10kVA Generators: ₦400,000 – ₦700,000
20kVA Generators: ₦800,000 – ₦1,500,000

Note: Prices may vary depending on the brand (e.g., Honda, Elepaq, Tiger, Mikano) and the seller’s location.

Step 3: Know Where to Buy

In Nigeria, you can buy used generators from:

Local Markets: Places like Alaba International Market (Lagos), Nnewi Spare Parts Market (Anambra), and Sura Market (Lagos) are popular for used generators.
Online Platforms: Websites like Jiji, OLX, and Facebook Marketplace have a wide selection of used generators.
Dealers: Some dealers specialize in selling refurbished generators with warranties.

Pro Tip: Always inspect the generator in person before buying, especially if you’re purchasing from an online platform.

Step 4: Inspect the Generator

This is the most critical step. Here’s what to look for when inspecting a used generator:

1. Check the Engine

Look for signs of wear and tear, such as rust or oil leaks.
Ask the seller to start the generator and listen for unusual noises (knocking, grinding, or excessive vibration).
Check the oil level and condition. Dirty or low oil is a red flag.

2. Inspect the Alternator

The alternator is the part that produces electricity. Ensure it’s in good condition and free from damage.
Ask for a load test to confirm the generator can handle the power output it claims.

3. Check the Hour Meter

The hour meter shows how many hours the generator has been used. Lower hours generally mean less wear and tear.
If there’s no hour meter, ask the seller for an estimate.

4. Examine the Body

Look for dents, cracks, or signs of poor maintenance.
Check the fuel tank for leaks or corrosion.

5. Ask for Maintenance Records

A well-maintained generator will have records of regular servicing.
If the seller can’t provide records, proceed with caution.

Step 5: Test the Generator

Never buy a used generator without testing it. Here’s how:

Start the Generator: Ensure it starts easily and runs smoothly.
Check the Voltage: Use a multimeter to confirm the generator produces the correct voltage.
Load Test: Connect appliances to the generator and ensure it can handle the load without overheating or shutting down.

Step 6: Negotiate the Price

In Nigeria, bargaining is a way of life. Use the following tips to negotiate a better price:

Point out any flaws or issues you noticed during inspection.
Compare prices from different sellers to have a bargaining advantage.
Be polite but firm. Don’t be afraid to walk away if the price isn’t right.

Step 7: Get a Warranty (If Possible)

Some dealers offer warranties on used generators, even if it’s just for 30 days. A warranty gives you peace of mind and protection against unexpected breakdowns.

Types of Generators and Their Uses

Not all generators are created equal. Here’s a breakdown of the different types and their best uses:

Inverter Generators

Quiet, fuel-efficient, and ideal for powering sensitive electronics like laptops and TVs.

Portable Generators

Lightweight and easy to move, suitable for small homes or outdoor events.

Standby Generators

Automatically kick in during a power outage, perfect for businesses and large homes.

Industrial Generators

Heavy-duty machines designed for factories, construction sites, and large-scale operations.

Pro Tip: If you’re powering sensitive electronics, go for an inverter generator to avoid damage from voltage fluctuations.

Fuel Efficiency and Running Costs

The type of fuel your generator uses will affect its running costs:

Petrol Generators: Cheaper to buy but more expensive to run due to higher fuel consumption.
Diesel Generators: More fuel-efficient and durable, making them ideal for long-term use.
Gas Generators: Environmentally friendly and cost-effective if you have access to a gas supply.

Example: A 5kVA petrol generator might consume 2-3 liters of fuel per hour, while a diesel generator of the same size consumes 1-2 liters per hour.

Common Generator Problems and How to Spot Them

Here are some common issues to watch out for:

Difficulty Starting: Could indicate a faulty starter motor, dead battery, or clogged fuel system.
Low Power Output: Often caused by a worn-out alternator or dirty air filters.
Excessive Smoke: Blue smoke means burning oil, while black smoke indicates incomplete combustion.
Overheating: Check the coolant level and ensure the radiator is clean.

Pro Tip: If the generator has any of these issues, negotiate a lower price or walk away.

How to Maintain a Used Generator

Proper maintenance is key to extending the life of your generator:

Regular Oil Changes: Change the oil every 50-100 hours of use to keep the engine running smoothly.
Clean Air Filters: Dirty air filters reduce efficiency and can damage the engine.
Check Fuel Lines: Replace cracked or leaking fuel lines to prevent fire hazards.
Store Properly: If you won’t be using the generator for a while, drain the fuel and store it in a dry place.

Pro Tip: Keep a maintenance log to track servicing dates and repairs.

Safety Tips for Using Generators

Generators can be dangerous if not used properly. Follow these safety tips:

Avoid Carbon Monoxide Poisoning: Always operate the generator in a well-ventilated area, away from windows and doors.
Use the Right Cables: Ensure the cables are rated for the generator’s power output to prevent overheating.
Ground the Generator: Use a grounding rod to protect against electrical shocks.
Keep Children Away: Generators can get hot and have moving parts, so keep kids at a safe distance.

Where to Find Spare Parts and Repair Services

If your generator breaks down, here’s where to find help:

Local Markets: Alaba International Market and Nnewi Spare Parts Market are great for affordable spare parts.
Authorized Dealers: Brands like Honda and Mikano have service centers across Nigeria.
Online Stores: Websites like Jumia and Konga sell generator parts and accessories.

Pro Tip: Build a relationship with a trusted technician for regular servicing and repairs.

Real-Life Stories: Lessons from Nigerians Who Bought Used Generators

Story 1: A Lagos-based small business owner shares how she saved ₦300,000 by buying a used 10kVA generator and using the savings to expand her business.
Story 2: A family in Abuja recounts their experience with a faulty used generator and how they learned to inspect thoroughly before buying.

Pro Tip: Learn from others’ experiences to avoid common pitfalls.

Environmental Impact of Generators

Generators aren’t just noisy—they can also harm the environment:

Noise Pollution: Generators can be noisy, especially in residential areas. Consider silent or inverter generators if noise is a concern.
Air Pollution: Diesel generators emit more pollutants than petrol or gas generators.
Fuel Spills: Improper handling of fuel can harm the environment. Always store fuel in approved containers.

Pro Tip: Consider solar-powered generators as an eco-friendly alternative.

Alternatives to Generators

If you’re looking for a more sustainable option, consider these alternatives:

Solar Power Systems: While the initial cost is high, solar systems are cheaper to run and environmentally friendly.
Inverters with Batteries: Ideal for small homes and offices, especially if you only need backup power for a few hours.
Hybrid Systems: Combine solar panels with a generator for a reliable and cost-effective power solution.

Pro Tip: If you’re in an area with frequent power outages, a hybrid system might be worth the investment.

Frequently Asked Questions (FAQs)

Q: How long can a used generator last?
A: With proper maintenance, a used generator can last 5-10 years or more.
Q: Can I convert a petrol generator to gas?
A: Yes, but it requires a conversion kit and professional installation.
Q: What’s the difference between kVA and kW?
A: kVA (kilovolt-ampere) is the apparent power, while kW (kilowatt) is the actual power output. To convert kVA to kW, multiply by 0.8.
Q: How do I know if a generator is stolen?
A: Ask for proof of ownership, such as a receipt or warranty card. Avoid deals that seem too good to be true.