Solar power & backup power installation

Solar and backup power installation in Singapore: prices and rules

Updated 4 November 2026

Residential solar in Singapore typically costs S$1,200 to S$2,000 per kWp fully installed, so a 12 kWp home system comes to roughly S$14,400 to S$24,000. Inverters are quoted separately, at about S$1,000 to S$3,000. Describe your roof and power needs in a request on BlaBlaPrice to see current offers from installers.

Licences and rules

According to the Energy Market Authority, no licence is required for residential installations under 1 MWac. Non-residential electrical work needs a licence, and an Electrical Installation (EI) Licence may apply to some residential work. A generation licence from the Energy Market Authority may be needed for systems of 1 MWac or more. All relevant licences should be in place before a solar system is switched on. Ask the installer which licence they hold and for which system size.

Sun, season and rain

Singapore is sunny and hot all year, with a wet season and a dry season rather than winter and summer. Output drops on cloudy and rainy days, so a rooftop system will not produce its rated power every month. November is already in the wetter part of the year, so schedule the survey visit for a dry day. Ask the installer about the mounting material and the warranty, since panels and frames are exposed to humidity.

How the system is sized and priced

Solar panel capacity is given in kilowatt-peak (kWp), and battery storage in kilowatt-hours (kWh). Panels are often priced per panel: basic panels at about S$500 to S$700 each and premium panels at S$700 to S$1,000 each. Roof area is measured in square metres. Ask whether a quote covers the inverter, the mounting, the electrical paperwork and the installation itself.

What to write in the request

Mention the system type, whether you want solar, backup power or both, the power you need in kW, the battery capacity in kWh, and the roof or site. Add the number of phases, the equipment you prefer, whether a feed-in tariff matters to you, your address, your deadline and your budget. Installers quote more accurately when the roof size is known.

Free for buyers. Describe your roof and your power needs in your own words in the chat on BlaBlaPrice, and add a photo of the roof if you can. The AI asks for missing details, looks through sellers' websites and price lists in Singapore, and shows the prices and businesses it finds. Sellers registered on BlaBlaPrice reply in the chat with their own offer, and your contact details stay hidden. You can also read how BlaBlaPrice works or see Electrical installation.