How to compare solar quotes
The cheapest headline price and the largest projected saving are not enough to identify the best proposal. First make the scope, equipment, assumptions, warranty and responsibilities comparable.
Give each provider the same brief
Tell each provider the same recent bill information, property details, roof constraints and daytime-use pattern. Ask them to state rather than silently infer missing information.
Compare the proposed system
Record total DC array size, inverter capacity, exact panel and inverter models, layout, estimated annual generation and the assumptions used for shading, orientation, losses and degradation.
- Panel manufacturer, model, wattage and quantity.
- Inverter manufacturer, model, capacity and monitoring access.
- Mounting method and roof penetrations.
- Protection equipment, cable route and distribution-board work.
- Generation estimate in kWh, not only a percentage bill reduction.
Compare the commercial scope
Ask what the price excludes. Roof repairs, scaffolding, long cable runs, technical assessments, meter work, extended warranties and financing fees can change the final cost. Payment milestones should correspond to clear deliverables.
Separate the warranties
Panel performance, panel product, inverter, workmanship and roof-leak responsibilities are different promises, sometimes made by different parties. Record who honours each one in Malaysia and what evidence is needed for a claim.
Official sources
These links were checked on the dates shown. Follow the live source before making a financial or installation decision.
This page covers Peninsular Malaysia only. It is educational guidance, not an installation proposal, engineering assessment or financial guarantee.