As electricity rates continue to rise, more Filipinos are considering solar power as a long-term solution for their homes. Mapúa University professor Dr. Jaime Honra, program chair of the School of Mechanical, Manufacturing, and Energy Engineering, emphasized that choosing the right solar power system is key to maximizing both savings and efficiency.
Solar power remains the most accessible form of renewable energy for households. Using photovoltaic panels to capture sunlight and convert it into electricity, these systems can supply homes much like traditional electric distributors. Dr. Honra explained that there are three main types of solar power systems:
- Grid-tied systems are affordable, work best during the day, and allow homeowners to earn credits for excess energy through net metering.
- Off-grid systems operate independently of power distributors, storing energy in batteries for use at night or during outages, though they require higher installation and maintenance costs.
- Hybrid systems combine both, offering the flexibility of daytime use, battery storage, and backup during power interruptions, though they come with higher upfront investment.
Dr. Honra stressed that system choice should match household needs and grid reliability. For homes with stable electricity, Grid-tied or Hybrid options are practical. For remote areas or locations prone to brownouts, Off-grid or Hybrid systems provide better energy security.
Before installation, engineers conduct solar site surveys to check roof condition, energy use, and electrical setup. Licensed providers also ensure systems use typhoon-rated mounting to withstand strong winds. While initial costs are high, many households see reduced bills of up to 25 percent within the first year. Return on investment can range from three to nine years.
However, Dr. Honra reminded homeowners that savings depend on usage habits. Solar panels generate power mainly between 9 AM and 4 PM, so households must maximize consumption during those hours. Strategic usage, similar to continuous operation of inverter appliances, delivers greater savings.
Mapúa University continues to support the country’s shift to renewable energy through its pioneering BS Energy Engineering program. By training the next generation of energy professionals, the institution seeks to push the Philippines toward sustainable power solutions and a more resilient economy.
