What is the payback period for a solar panel system?

The payback period is the time it takes for the total savings from your solar panel system to equal your initial investment. Our calculator provides an estimate based on your electricity bill and system choices.

How does self-consumption affect my solar savings?

Self-consumption is the percentage of solar energy you use directly. A higher self-consumption rate leads to greater savings and a shorter payback period because you avoid buying more expensive electricity from the grid.

Do I need batteries for my solar panel system?

Batteries are optional but highly recommended for those who use more electricity at night. They store excess solar energy generated during the day for you to use after sunset, maximizing your savings.

Philippines Solar Savings Calculator | Meralco Bill & Investment

Key Assumptions

Utility Rate (/kWh)

₱

Export Rate (/kWh)

₱

Peak Sun Hours

Primary Usage Time

Financing

Environmental Impact (Annual per kWp):

460 kg CO2 Emissions Reduced

404 L Gasoline Saved

24 Equivalent Trees Planted

Recommended System Size

Estimated monthly savings*

Estimated Rooftop Area Needed

System Specifications

Ideal For

Investment & Financing Analysis

Estimated Investment Cost

Payback Period

Environmental Impact (Annual)

*Savings are based on an estimated 40% self-consumption of generated power, as excess power is not exported for credit in this setup.

Recommended System Size

Estimated monthly savings**

Estimated Rooftop Area Needed

System Specifications

Ideal For

Investment & Financing Analysis

Estimated Investment Cost

Payback Period

Environmental Impact (Annual)

**Savings are based on an estimated 40% self-consumption and an export rate of ₱5.49/kWh under the net metering program in the Philippines.

Key Assumptions

System Specifications

Ideal For

Investment & Financing Analysis

Environmental Impact (Annual)

System Specifications

Ideal For

Investment & Financing Analysis

Environmental Impact (Annual)

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