For Philippine homes · Smarter Energy. Lower Bills.
Know what your electricity costs, and what solar could change.
Free calculators and plain-English guides for your electricity bill, aircon, appliances, backup power and rooftop solar — in pesos, with every assumption shown.
Reference rate: ₱15.0615/kWh was Meralco’s announced overall rate for a typical household using 200 kWh a month in October 2026 (The Philippine Star). Rates change monthly and differ by utility — compare rates nationwide, or check your bill.
Calculators
Nine tools, zero sign-ups
- Electricity Cost Calculator Work out the kWh and peso cost of one appliance or several, per day, month and year.
- Aircon Electricity Cost Calculator Estimate monthly aircon kWh and cost from rated or measured power, and compare scenarios side by side.
- Solar System Size Calculator Work out the solar system size (kWp), number of panels, roof area and optional battery your home needs, from your monthly kWh or bill.
- Solar Savings Calculator Estimate solar generation, self-consumption, exports, bill savings and simple payback for your home.
- Solar Payback Calculator Project cumulative cash flow and breakeven year for up to three solar proposals, with degradation and replacements.
- Power Station Runtime Calculator Estimate how long a portable power station or battery can run your devices during a brownout.
- Which EcoFlow Should I Buy? Quiz Tick the appliances you want to run in a brownout and get matched to EcoFlow power stations with enough power and capacity.
- EcoFlow Runtime Calculator Pick an EcoFlow model and your devices to estimate how many hours it can keep them running.
- Household Appliance Consumption Calculator List every appliance at home, find the biggest users, see the cost breakdown and export a CSV report.
Guides
Start with the question you have
Electricity Savings
Read your bill, understand the charges and cut the kWh you pay for.
Appliances & Power
What aircons, refrigerators and other appliances really use, plus backup power for brownouts.
Solar Energy
Costs, sizing, system types, net metering and how to compare installer quotes.
How we work
Useful, honest, and easy to check
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Sources you can check
Rates, rules and figures link to the Department of Energy, the ERC, utilities, laws and manufacturers.
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Formulas in the open
Every calculator shows its maths, default assumptions and limitations. Change anything.
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Estimates labelled as estimates
Worked examples say what they assume. We don’t promise savings or invent test results.
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Independent
No paid rankings and no fake reviews. If we ever earn from a link, we tell you on that page.
Read our editorial policy and how we make money.
Comparing solar quotes?
Check price per kWp, the equipment, the warranties and the savings assumptions before you sign. Our checklist shows what every quote should include.