Solar Panel Installation in Bangkok & Metro Assess the value before installation

A solar (PV) system converts sunlight directly into electricity using solar panels made of semiconductors such as silicon. When sunlight hits the panels, direct current (DC) is generated; an inverter then converts it to alternating current (AC) for use in your home or building, with control and protection equipment ensuring safe operation.

Solar can be worthwhile when a building uses substantial daytime electricity and has suitable roof space. Savings and payback vary with the bill, tariff, system size, roof orientation, shade and project price, so they should be assessed from real data before a decision.

Very little. Panels should be cleaned 1-2 times a year, the system should be inspected by a specialist once a year, and you can monitor production via an app or the inverter screen. QuescoSolar offers full maintenance and cleaning packages.

Solar can be installed on almost any roof — metal sheet, tile, concrete, and CPAC Monier — though suitability varies by roof type, orientation and pitch. Metal sheet roofs are ideal. We survey every site to design the best mounting solution, including ground-mount when needed.

Yes. Panels still generate on cloudy or rainy days, but output falls with irradiance and also depends on panel type, temperature and shade. An assessment should use annual solar-resource data rather than the output of a single day.

QuescoSolar installs solar across all 50 districts of Bangkok plus the surrounding provinces — Pathum Thani, Nonthaburi, Samut Prakan, Samut Sakhon and Nakhon Pathom — covering Ramintra, Lat Phrao, Sai Mai, Don Mueang, Lak Si, Bang Khen, Chatuchak, Khlong Sam Wa, Min Buri, Lat Krabang, Bang Na, Sathon and many more.

QuescoSolar provides solar installation across Bangkok and the metropolitan area, covering all 50 Bangkok districts with site surveys, system design, engineers and installation teams, equipment and workmanship warranties, and utility-permit support.

A good installer should have proper licensing and registration, certified electrical engineers, standards-compliant panels and inverters, clear warranties, verifiable reference projects, utility-permit support and after-sales service. Check each bidder's documents and completed work before deciding.

Price depends on system size, panel and inverter models, roof structure, protection equipment, electrical work and permit scope. A current itemised quotation should therefore be prepared from the electricity bill and a site survey.

There is no single payback period for every project. It must be calculated from installation price, system size, daytime self-consumption, tariff, roof orientation and pitch, shade, degradation and maintenance. QuescoSolar states the assumptions used in its assessment before quoting.

QuescoSolar installs throughout Bangkok and the metro region, especially East Bangkok (Min Buri, Khlong Sam Wa, Khan Na Yao, Bang Khen, Bueng Kum), North Bangkok (Don Mueang, Lak Si, Sai Mai, Chatuchak), Lat Phrao, Ramintra and Lam Luk Ka. Our office is in Khlong Sam Wa for fast local service.

QuescoSolar (เคสโก้ โซลาร์) is a full-service solar installation company located at 44 Soi Phraya Suren 19, Bang Chan, Khlong Sam Wa, Bangkok 10510, founded in 2018. We provide end-to-end installation for homes, buildings and factories with warranties and after-sales support.

On-grid systems (connected to the grid) require approval from MEA for Bangkok and metro, or PEA for other provinces, plus ERC and EGAT permits. QuescoSolar handles the entire permitting process for you.

Under the Net Metering / People’s Solar programmes, EGAT buys back excess power at about 2.20 THB/unit (per 2024-2026 announcements) for 10 years. However, the fastest payback comes from designing the system to self-consume most power during the day rather than selling it back.