Solar Panel Installation in Tuen Mun

Best on unshaded roofs facing the equator, but east-west arrays perform well (spreading generation across the day). Heavy shading, southern-facing-only aspects (northern hemisphere), asbestos roofing, or structures needing reinforcement are the genuine deal-breakers a site survey will catch.

Very little: occasional cleaning where rain doesn't do the job (dusty climates, low tilt angles, bird traffic), an electrical inspection every few years, and monitoring app checks for output drops. A sudden generation drop usually means an inverter fault or new shading, not dirty panels.

It exports to the grid under your market's scheme — net metering, feed-in tariff, or export payments. Export rates are usually well below retail import rates, which is why maximising self-consumption (timers, smart appliances, EV charging) beats chasing export credits.

By system size in kilowatts (kW), quoted as an installed price including panels, inverter, mounting, electrical work and grid paperwork. Batteries are a separate large line item. Compare quotes on price-per-kW with equivalent component tiers, not just the headline total.

Size to your daytime consumption and roof space: pull a year of electricity bills, and let the installer model self-consumption vs export. Typical homes land between 4kW and 10kW. Oversizing slightly is usually cheap at install time and future-proofs for an EV or heat pump.

Mostly village-house owners in the New Territories and owners of low-rise buildings with roof rights — high-rise flat owners can't. The FiT premium rate is the economic engine: systems commonly pay back in 8-10 years on FiT income.