Why do solar system quotes in Ghana differ so much?

Almost every family or business that asks for a solar quote in Ghana gets a number, and sooner or later two numbers look wildly different. It is natural to wonder whether one installer is overcharging or the other is cutting corners. Usually neither is the full story. A quote is a design for a particular building and a particular set of loads, so the totals only mean something once you know what each one is built to do.

Two quotes can cover different systems

Imagine two installers visiting the same house. One designs for lights, fans, a television and a phone charger. The other also includes a fridge, a freezer and a water pump, and sizes the battery to carry the evening. Both quotes may be carefully prepared, yet the systems are not the same. Before you compare totals, compare the list of what each system must power.

Start with your load, not the price

Good sizing begins with your daily use. Write down each appliance, how many hours it runs in a day, and which ones must keep going when the grid goes off. A fridge that runs all day asks for different support than a few ceiling fans used at night. Ask each installer to explain the load they assumed. If a quote arrives without any reference to your appliances, ask for the working before you decide.

Each part changes the total

A solar system has a few main parts, and each has its own range of options.

The panels capture sunlight and produce direct current. Their size and number decide how much energy the system can gather in a day.

The inverter converts direct current into the alternating current your appliances use. It needs to be large enough for the peak load you expect, not only the average.

The battery stores power for the evening and for dumsor. Battery type and capacity decide how long your key appliances can keep running. Lithium batteries are a common choice in Ghanaian homes because they suit regular daily use, but the size still has to match your needs.

When one part changes, the others may need to change too. That is why two honest quotes can look so far apart.

What a clear quote should show

A clear quote lists each part by name and size. It shows the appliances or loads the system is meant to cover. It explains the mounting and installation work, and it says what support you receive after the job is finished. If a quote is a single figure with no breakdown, it is harder to know what you are paying for.

Check the installer’s standing too. An installer should be licensed by the Energy Commission, and the company should be ready to answer questions about the design in plain language.

Questions to ask before you agree

Put these questions to every installer you speak with:

• Which appliances does this system cover, and for how many hours a day?
• Why was this inverter size chosen for my peak load?
• What battery type and capacity are included, and what will it power at night?
• How is the panel layout chosen for my roof?
• What support is available after installation?

Compare the answers, not only the totals. A patient, clear answer is a good sign.

Check your own numbers first

Before you request a quote, you can work out your own starting point. Use the Deep Solar Ghana calculator at /calculator to list your appliances, their hours of use and your backup needs. The result gives you a clearer picture of the system your home may need, and it makes every quote easier to compare.

Then call or WhatsApp 059 549 4113, or visit the Deep Solar Ghana website, and bring your list to the conversation.