Guides
Home energy guides
Researched, plain-English explanations with the formulas shown and the sources linked. Pick a starting point or browse by topic.
Start with your goal
I want a lower electricity bill
I’m thinking about solar
Electricity Savings
Topic overviewRead your bill, understand the charges and cut the kWh you pay for.
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El Niño and Your Electricity Bill: Keeping Cool Without Bill Shock
Why bills rise in hot El Niño months, how to estimate your aircon's extra cost at an example ₱15.06/kWh, and which steps cut kWh the most.
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How to Calculate Your Electricity Bill in the Philippines
Work out your power bill from kWh: the appliance formula, what each Meralco charge means, and why your estimate and the actual bill rarely match.
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Practical Ways to Reduce Household Electricity Consumption
Cut your kWh where it counts: aircon first, then refrigerator, standby loads, cooking, laundry, water heating and lighting, with ways to measure each one.
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Super El Niño 2026–2027: How to Prepare Your Philippine Home
What PAGASA and NOAA say about the 2026–2027 El Niño, and a practical home checklist for heat, water shortages, grid alerts and higher electricity bills.
Appliances & Power
Topic overviewWhat aircons, refrigerators and other appliances really use, plus backup power for brownouts.
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Choosing Backup Power During Philippine Brownouts
Power banks, UPS units, power stations, inverter batteries, hybrid solar or a generator? How to size backup power for brownouts and use it safely.
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How Much Electricity Does a Refrigerator Use?
Read the monthly kWh on the DOE energy label, why nameplate watts × 24 hours overstates use, inverter fridges, habits that matter and brownout food safety.
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How Much Electricity Does an Air Conditioner Use?
Why aircon HP isn't wattage, where to find the rated power input, what the DOE energy label shows, and how to estimate your aircon's kWh and monthly cost.
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How to Calculate Portable Power Station Runtime
Work out how long a portable power station will run a fan, router or fridge: the runtime formula, usable capacity, inverter losses, surge limits and solar recharging.
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Inverter vs Non-Inverter Aircon: Understanding Running Costs
How inverter and non-inverter compressors differ, why savings depend on your hours and load, and how to work out payback using the CSPF on the DOE label.
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Preparing for El Niño Brownouts: Grid Alerts and Backup Power
What NGCP yellow and red alerts mean, what to do during an alert, which appliances to keep running, and how to size backup power safely for El Niño.
Solar Energy
Topic overviewCosts, sizing, system types, net metering and how to compare installer quotes.
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How Many Solar Panels Does a Philippine Home Need?
Size a home solar system from your bill: the kWp formula, Philippine sun-hour data, realistic losses, panel count, roof area and battery sizing, with worked examples.
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Is Residential Solar Worth It in the Philippines?
A practical framework for deciding whether rooftop solar makes sense for your home: daytime use, rates, net-metering credits, payback and lifetime cash flow.
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On-Grid vs Hybrid vs Off-Grid Solar Systems
How on-grid, hybrid and off-grid solar work in the Philippines, which ones keep power on in a brownout, what drives cost, and which can be net-metered.
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Residential Solar Installation Guide: From Quote to Switch-On
A step-by-step guide to installing home solar in the Philippines: sizing, roof checks, comparing quotes, installer credentials, permits, net metering and upkeep.
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Solar Panel Prices and Installation Costs in the Philippines
What goes into the price of a home solar system in the Philippines, what recent reports say it costs, and how to compare quotes fairly on a ₱-per-kWp basis.
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Understanding Solar Net Metering in the Philippines
How Philippine net metering works: the legal basis, the 100 kW limit, how exports are credited, the 2025–2026 rule changes and the Meralco application steps.