SOLAR BASICS

  • Not necessarily. Remaining grid consumption, applicable fixed charges and solar export credit arrangements can affect your final electricity bill.

  • Yes. Solar panels can still generate electricity during cloudy weather, although output is generally lower than under strong sunlight.

  • Solar panels commonly carry long-term performance warranties of 25–30 years, depending on the manufacturer and model.

  • Not every roof is suitable. Roof condition, structure, orientation, shading and available space must be assessed before installation.

SAVINGS & BILLS

  • It's possible for some households to achieve very low electricity bills, but this isn't guaranteed. Results depend on consumption, solar generation, export credits and applicable TNB charges.

  • Yes, potentially. Electricity used by appliances operating during the day can be supplied by solar, while eligible excess generation may receive export credits under Solar ATAP.

  • Directly consuming solar electricity is often more valuable because it reduces electricity purchased from the grid. Export-credit values depend on the applicable programme rules.

SYSTEM SIZING

  • The ideal number depends on your electricity consumption, panel wattage, available roof space and system design. For example, a 6.5 kWp system requires 10 panels rated at 650 W each. A solar assessment helps determine the right system size for your home.

  • It depends on the household's electricity usage. A 10 kWp system may be suitable for some homes but oversized or undersized for others.

  • Potentially, provided your inverter, electrical infrastructure, roof space and applicable programme requirements allow for expansion. Planning ahead can help avoid unnecessary modifications.

  • No. Oversizing a system can produce surplus electricity that may not deliver equivalent financial benefits. Proper system sizing is important.

  • Yes. Higher-wattage panels can achieve the same system capacity with fewer panels. For example, a 6.5 kWp system requires 10 panels rated at 650 W each, compared to 13 panels rated at 500 W. However, higher-wattage panels are often physically larger, so fewer panels don't necessarily mean less roof space.

  • The space required depends on panel dimensions, quantity and roof layout. For example, 10 panels measuring 2.465 m × 1.134 m occupy approximately 28 m² of combined panel area. Additional space may be required for installation clearances and access.

PRICING & QUALITY

  • Not necessarily. Tier 1 classification focuses on manufacturer bankability rather than the technical quality of individual solar panels.

  • There is no single best brand for every home. Compare the specific panel model, efficiency, warranty and suitability for your roof.

  • Price differences may result from equipment specifications, installation complexity, warranty coverage, workmanship and excluded services.

  • They can be, especially when higher efficiency helps maximise limited roof space. However, the additional cost should be justified by the benefits.