What makes up the price
The price per kilowatt of a solar system includes the panels, the inverter, batteries if the system has them, the wiring, the structural mounting, the permits, and the installation labor. Two systems of the same size can differ in price because of the component brands chosen, the difficulty of the roof, and the distance of the equipment from the main electrical connection.
Why the price drops as the system gets bigger
Per-kilowatt prices are usually lower on larger systems because the fixed items — one inverter set, one set of permits, one installation crew — are shared over more kilowatts. Smaller systems carry the same fixed items over fewer kilowatts, so the per-kW figure is higher. This is why a properly sized system is often cheaper per kilowatt than an undersized one.
How to estimate your budget
Start from your monthly bill and the size of the system that would offset it, then apply a per-kilowatt range for your area and your component choices. Our on-site payback calculator gives you a directional estimate with the assumptions shown on screen. For a firm figure, we need to see the roof and the electrical panel — that is what a site assessment is for.
What a budget looks like
Our calculator uses ₱80,000 per kW as its default planning figure — real quotes move with roof difficulty, brands, and financing.
| System size | Indicative cost | Monthly generation |
|---|---|---|
| 3 kW — small home | ₱240,000 | ~324 kWh |
| 5 kW — typical home | ₱400,000 | ~540 kWh |
| 8 kW — large home | ₱640,000 | ~864 kWh |
Hybrid systems and batteries add a premium on top — but they keep you running through brownouts. Government employees can spread the package over 5 years through the GSIS solar loan.
Try these numbers in the payback calculator → See GSIS financing →
From estimate to firm quote
A directional estimate is a conversation starter, not a price. A firm quote names the exact components, the expected installation timeline, and the warranties that come with the system. Send us your bill and a photo of your roof, and our team will prepare the quote.
Frequently asked questions
What is the planning figure per kW?
Our calculator uses ₱80,000 per kW for a grid-tied residential system; real quotes move with roof difficulty, brands, and financing.
How much is a typical home system?
At default assumptions: 3 kW ≈ ₱240,000, 5 kW ≈ ₱400,000, 8 kW ≈ ₱640,000 — all illustrative, confirmed only by site assessment.
Do batteries cost extra?
Yes — a battery adds about ₱30,000 per kWh stored, plus a hybrid inverter and critical-load wiring; it keeps you running through brownouts.
Can I pay in installments?
Government employees can spread the package over 5 years through the GSIS solar loan, often for less monthly than the bill it replaces.
Ready for a site-specific answer?
Back to all insights