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Solar and backup power in Cagayan de Oro

Cagayan de Oro, Northern Mindanao, gets 5.04 peak sun hours a day on average. The dullest month is January at 4.2 hours, 30% less than April, the sunniest at 5.99. That makes it sunnier than 45% of the 21 cities we cover in the Philippines.

Peak sun hours a day, long-term monthly average. The blue bar is the month with least sun.

Sunshine in Cagayan de Oro dips mainly in January, the one month clearly below the yearly average. A system sized for that month covers the rest of the year with room to spare. Across the year, Cagayan de Oro gets about the same sunshine as the average of the cities we cover in the Philippines.

What a home in Cagayan de Oro needs

Three example homes, each covering a 12-hour daily outage with a lithium battery and solar panels to recharge it. Panels are 450 W. The month-with-least-sun figure is what keeps you covered all year.

Home	Inverter	Battery	Panels, January	Panels, yearly average
Essentials 6 lights, 2 fans, a fridge, TV, Wi-Fi and phone charging	1 kW	2.6 kWh	2	2
Family home Essentials plus a freezer, more lights, a laptop, a desktop and a water pump	3 kW	7.4 kWh	5	4
With air conditioning The family home plus two small air conditioners for 6 hours a day	5 kW	14.9 kWh	9	8

Your own appliances will differ. Put them into the calculator below, which already has Cagayan de Oro's sunshine.

Size your own system in Cagayan de Oro

1 Where is the system?

Sunshine for Cagayan de Oro, Philippines.

Peak sun hours a day

Month with least sun Yearly average

Using January, the month with least sun, so the plan works all year.

2 What should keep running?

Appliance	Watts each	How many	Hours a day	Remove
LED light bulb
Refrigerator / fridge
Wi-Fi router
Phone charger
TV, 32–43 inch
Ceiling fan
Laptop

Add an appliance

Watts are typical figures. The label on the appliance or its plug shows the real number: use that if you can.

3 Your power situation

Hours a day without grid powerUse 24 if there is no grid at all.

Battery type Lithium (LiFePO4) Lead-acid / tubular / AGM

Solar panels should Recharge the battery after outages Power everything, every day No solar, battery only

Panel size

Planning tips for Cagayan de Oro

Size panels for January, not for the yearly average. A system sized on the average falls short in the dullest weeks, which is when you most need it.
Dust, heat and shade cut output. Keep panels clean, leave air space under them, and avoid anything that shades them between mid-morning and mid-afternoon.
Ask installers for the inverter's continuous and surge ratings, the battery's usable capacity and chemistry, and the panels' total watts. Compare those numbers with your plan rather than the package name.

Guides for planning in Cagayan de Oro

Nearby cities

All cities in the Philippines

Sunshine: NASA POWER climatology, ALLSKY_SFC_SW_DWN, monthly averages for 25-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2025), at 8.4822, 124.6472; retrieved 2026-11-09. Peak sun hours equal kWh of sunlight per square metre per day on flat ground; tilted panels usually collect a little more.