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

Key Financial Breakdown 

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

ParameterValue

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

ParameterValue

Investment₱100,000

Additional energy savings10–15%

Daily kWh saved2–3 kWh

Monthly savings₱800–₱1,200

Payback period7–9 years

3. 5kW Hybrid Solar System with Battery

ParameterValue

Investment₱450,000

Daily production~20–24 kWh

Monthly savings₱6,000–₱9,000

Payback period5–6 years (with battery)

Lifetime25 years (solar), 8–12 (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

Quiet rooms and 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, and the solar system powers your home.

The result: Comfort + Savings + Independence

Autor: Nils Deden