Sunnify

How much do solar panels cost in Singapore?

Roughly S$1,000 to S$1,600 per kWp installed, which puts a typical 12 to 20 kWp landed system around S$15,000 to S$25,000. Below is exactly where that money goes, and what moves the number.

S$1,000–1,600

Per kWp installed

S$15k–25k

Typical 12–20 kWp system

~5 yrs

To pay it back

Bigger systems cost more in total but less per kWp, because labour, permits, and the inverter are shared across more capacity.

Where your money goes

No black box on the price.

A solar system is not just panels. Here is roughly how an installed price splits, so you can read a quote and spot what is missing.

Solar panels35%
Installation & labour16%
Inverter14%
Scaffolding & site safety12%
Mounting & frames9%
Permits & grid connection8%
Wiring & electrical6%

Watch the scaffolding line

Proper scaffolding runs about S$2,000 to S$6,000, and it is the first thing a suspiciously cheap quote shaves down. That is not a saving, it is the crew’s safety on your roof. Singapore’s site-safety rules are strict for good reason, and experienced workers are not safe workers without it.

What changes your price

Three things move the number.

System size

Bigger systems cost more in total, but less per kWp. A 20 kWp system can run nearer S$1,000/kWp; a small one nearer S$1,600.

Single or three-phase

Single-phase caps you near 13 kWp. Three-phase unlocks larger systems, which lowers your cost per kWp.

Roof and extras

Tile roofs, tricky access, optimisers, or a battery all add cost. A simple metal roof keeps it lean.

The price in context

A cost, or an investment?

The honest way to judge the price is against what it returns. For most suitable landed homes that is a 5 to 6 year payback, then two decades of largely free power. See your own cost and payback in two minutes.

Common questions

Still pricing it up?

How much do solar panels cost in Singapore?

About S$1,000 to S$1,600 per kWp installed. A typical landed system of 12 to 20 kWp lands roughly between S$15,000 and S$25,000, all in.

Why is the price quoted per kWp?

kWp (kilowatt-peak) is the system's rated size, and it scales the cost more reliably than panel count. Bigger systems cost less per kWp because fixed costs like labour and permits are shared across more capacity.

What is included in the installed price?

A proper quote covers panels, inverter, mounting, wiring, installation labour, scaffolding, permits, and grid connection. Watch for quotes that quietly drop scaffolding or grid connection and add it back later.

Is the cheapest quote the best deal?

Rarely. A quote far below the rest has usually compromised somewhere you cannot see, often on scaffolding and site safety, or with lower-tier panels and thin warranties. Compare what is actually included, not just the headline price.

Is it worth the price?

For most suitable landed homes, yes. At today's prices and SP 2025 tariffs the system typically pays for itself in about 5 to 6 years, then runs largely free for the rest of its life.

Start with clarity. Then decide.

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