Free solar estimate

Find your solar starting point.

Answer a few simple questions to see how many solar panels may suit your property and how much electricity they could produce.

About 2 minutesNo obligationReviewed by SilanganTech

Your electricity use

If available, use the monthly electricity usage shown as kWh on your bill.

Average monthly electric bill (₱)kWh means the amount of electricity you used during the billing period.Approximate electricity cost per unit (₱/kWh)We use ₱16 by default. You can change this using the rate on your bill.

Your savings goal

Choose how much of your monthly electricity use you would like solar to cover.

Electricity use covered by solar 70%Lower investment 30%Maximum target 100%

Selecting 100% does not guarantee a zero bill. Fixed utility charges, electricity used at night, weather, and credits for excess solar power can affect the final bill.

Allowance for future appliances or longer use 0%No extra allowance 0%Future growth 30%

Combined design target: 70%. The added allowance increases the recommended system size. It becomes an actual energy buffer only when effective solar energy exceeds your current monthly use.

When you use electricity

Think about when your appliances, air-conditioning, or business equipment normally operate.

Electricity used while the sun is up 60%6 AM–6 PM: 60%6 PM–6 AM: 40%

Low daytime use: the property is usually empty during working hours. High daytime use: appliances or equipment run for much of the day.

Roof space and power backup

Estimate only the clear, mostly unshaded roof space available for solar panels.

Clear roof space available for panels (m²)Exclude shaded areas, roof edges, water tanks, antennas, and other obstructions.What should stay powered during an outage?

This calculator provides an initial recommendation using standard SilanganTech planning assumptions. Actual production and final equipment selection depend on your electricity bill, roof condition, shading, electrical system, and site inspection.