When you ask for solar quotations, the totals can vary a lot. That does not always mean one company is expensive and the other is cheap. Often the two systems are simply different. These seven checks help you compare them fairly.
1. System size and the reasoning behind it
A good quotation states the system size and explains how it was chosen: your electricity use, the appliances you want to run and the space available. If a quote gives a size with no explanation, ask how it was calculated.
2. Panel brand, model and type
Look for the exact panel model, not just “solar panels”. The datasheet shows the rated output and the manufacturer’s warranty terms, so you can compare like with like.
3. Inverter details
The inverter converts solar power into usable electricity for your home or business. Check the brand, model, capacity and whether it is on-grid, off-grid or hybrid. It should match the system you actually need.
4. Batteries, if any
If you want backup during power cuts, the quote should list the battery type, capacity and how many hours of backup it is designed for, and for which appliances.
5. Mounting structure and wiring
These parts are easy to overlook but matter for safety and lifespan. Ask what the mounting structure is made of, how it is fixed to your roof, and what cables, breakers and protection devices are included.
6. What the installation includes
Does the price include transport, installation, testing and a walkthrough of how to use the system? Are there extra costs for civil work or long cable runs?
7. Support after installation
Ask who you call if something goes wrong, what maintenance is recommended, and whether servicing is offered. A lower price with no after-sales support can cost more over time.
Our approach: every quotation we prepare lists the components, the scope of work and the cost in writing, so you can compare it properly.