Thinking of upgrading your water heating system? Compare solar and electric water heaters and find out which one makes more sense in the Philippines.
Introduction
Hot water is a daily necessity in many Filipino households — from relaxing showers to kitchen use and laundry. But with electricity prices on the rise, homeowners and businesses are now looking for smarter ways to heat water.
Electric water heaters have long been the standard. But solar water heaters, like Solar Thermo Tank, are quickly gaining ground for their efficiency and savings. So which one is better? Let’s compare the two and see what’s best for homes and businesses in the Philippines.
How Each System Works
Electric water heaters use electricity to heat water via coils. They come in storage (tank-type) and instant (tankless) models. They’re convenient and widely available.
Solar water heaters use sunlight to heat water through rooftop collectors. Heated water is stored in an insulated tank. Many systems include a backup electric heater for rainy days, but in sunny climates like the Philippines, solar does most of the work.
Comparison: Solar vs. Electric Water Heaters
Operating Costs
Electric: ₱1,000–₱3,000/month depending on usage
Solar: Zero to very minimal (especially when backup isn’t used)
Installation Cost
Electric: Lower upfront cost (₱6,000–₱15,000)
Solar: Higher initial investment (₱40,000 and up), but pays for itself in 2–4 years
Energy Efficiency
Solar water heaters convert 70–80% of sunlight directly into heat.
Electric systems lose energy due to conversion and standby heat loss.
Reliability
Electric: Dependent on grid; affected by brownouts
Solar: Passive operation; works even without electricity (with stored hot water)
Environmental Impact
Electric: Contributes to fossil fuel demand
Solar: Renewable energy; significantly reduces carbon footprint
Suitability for Philippine Climate
The Philippines enjoys strong year-round sunlight — ideal for solar water
heating.
Real-Life Scenarios
Family Home in Laguna: A household of 5 replaced an electric heater with a 250L Solar Thermo Tank. They now save over ₱2,000/month and enjoy un- interrupted hot water even during power interruptions.
Resort in Palawan: Switched from diesel and electric heating to a centralized solar system. They reduced monthly fuel costs by 50%, with ROI in under 2 years.
City Condo: Limited roof space makes a compact electric heater the more practical choice — showing that each case is unique.
When Electric Still Has a Place
While solar offers many advantages, there are situations where electric
heaters might still be considered:
- Limited roof space (e.g., apartments or small condos)
- Very low hot water consumption
- Infrequent use (e.g., vacation homes)
- Shaded locations without good sun exposure
Conclusion
In most Philippine homes and businesses, solar water heaters deliver more value in the long run. With lower operating costs, minimal maintenance, and strong performance in sunny weather, they outperform electric water heaters in both efficiency and sustainability.
If you’re ready to lower your bills and switch to a smarter hot water solution, a Solar Thermo Tank is your best bet.
Contact us for a free consultation and let us help you choose the right system for your space and needs.
