How to Save with PU Foam Insulation, Efficient Windows, and a 5kW Solar System

Example Home: 100 m², located in a tropical region

Monthly electricity cost without improvements:
~600–720 kWh/month → ₱8,400–₱10,000

1. PU Foam Insulation

Investment: ₱150,000
Energy savings: ~35% on aircon usage
Daily kWh saved: 7–8 kWh
Monthly savings: ₱2,800–₱3,500
Payback period: ~4–4.5 years

2. Energy-Efficient Double-Glazed Windows

Investment: ₱100,000
Additional energy savings: 10–15%
Daily kWh saved: 2–3 kWh
Monthly savings: ₱800–₱1,200
Payback period: 7–9 years

3. 5 kW Hybrid Solar System with Battery

Investment: ₱450,000
Daily production: 20–24 kWh
Monthly savings: ₱6,000–₱9,000
Payback period: 5–6 years (with battery)
Lifetime: 25 years (solar), 8–12 years (battery)

Full System Overview

Total Investment (approx.): ₱700,000–₱750,000
Total Monthly Savings: ₱10,000–₱13,000
Yearly Savings: ₱120,000–₱156,000
Full Payback Period: ~4.5–5.5 years

Combined Advantages

Lower daily aircon usage → less wear and tear
Reduced humidity → better air quality
Quieter rooms → better sleep
Blackout protection (with battery)
Adds long-term property value

🏁 Conclusion: Think as a System

Each measure alone helps — but together, they multiply.

PU foam blocks the heat
Efficient windows keep it out
Solar system powers your home

➡️ Result: Comfort + Savings + Independence