Solar Panel Calculator (Philippines)
Estimate what a rooftop solar system would cost and save you — sized to your bill, your city, and how you use power. No sign-up, no phone number.
Estimate only. Real numbers depend on your roof, brand, installer, and how much power you use as you generate it. Utility rates (Meralco, VECO, and others) change almost monthly, so this is a snapshot at today's rates. The 25-year figure assumes today's rates and ~0.5%/yr panel degradation, and does not subtract inverter or battery replacement costs, which are likely at least once over that time.
Get real quotes from vetted installers →How does this solar panel calculator work?
Enter your average monthly electric bill and pick your city. The calculator converts your bill into monthly kWh, sizes a system against your city’s sun-hours, then maps that to real installed prices and savings. Your usage profile and whether you choose a battery adjust the savings, because a home that uses power during the day — or stores it in a battery — keeps more of what its panels make instead of exporting it at the lower net metering rate.
What the results mean
- System size (kW) — the rooftop capacity that fits your usage. See how many panels that is.
- Installed price — a realistic range for that size, not a quote. Full breakdown in the cost guide.
- Monthly savings — what you’d stop paying the utility each month.
- Payback — how long the savings take to cover the install, typically 3 to 7 years.
- 25-year net savings — lifetime savings minus system cost.
Planning to finance it? Run the numbers through the solar financing calculator. Want backup during brownouts? Size a battery with the battery calculator.
Solar panel calculator FAQ
Frequently asked questions
How does the solar panel calculator work?
Enter your average monthly electric bill, your city, when you use power, and whether you want a battery. The calculator estimates your system size in kW, the installed price range, monthly savings, payback period, and 25-year net savings, using real Philippine sun-hours and installed prices by city.
How many solar panels do I need in the Philippines?
Roughly 2 panels per kW of system size. A ₱6,000 monthly bill points to about a 3kW system, or 6 panels; a ₱12,000 bill points to about 8kW, or 16 panels. The calculator sizes it from your bill and local sun-hours.
How much does a solar system cost in the Philippines?
Installed grid-tied systems run roughly ₱45,000 to ₱75,000 per kW in 2026, so a 5kW system is about ₱250,000 to ₱400,000. Adding a battery for a hybrid system costs more. The calculator shows a price range for your estimated size.
Does the calculator account for net metering?
Yes, indirectly. It assumes high self-consumption, since exported power is credited only at the generation rate (around ₱5-7/kWh), below the retail rate. Homes that use more power during the day, or add a battery, save more, which the usage-profile and system-type options reflect.
What is the 25-year net savings figure?
It is your estimated lifetime savings (monthly savings over 25 years) minus the mid-point installed cost of the system. Solar panels typically last 25-30 years, so it approximates the total peso benefit over the system life at today’s rates.
Is this the same as getting a quote?
No. It is a free estimate to set expectations before you talk to anyone. Your real price depends on your roof, brand, and installer. When you are ready, the quote form matches you with vetted local installers for actual numbers.