Cooper Residence
- Retirement home running on a zero-bill solar system built for reliability and long-term comfort.
- System Size: 10.90 kWp
- Completion: 25-Sep-2023
- Caut, La Paz, Philippines
Project Summary
This retirement residence was engineered to deliver full daily offset and stable long-term performance for a newly retired couple relocating from the United States. With comfort and predictability as priorities, the system was designed to eliminate electricity bills while maintaining consistent generation throughout the day. The roof layout uses an east-west orientation to extend production across morning and afternoon periods, ensuring steady output rather than a narrow midday spike.
Premium components were selected for durability and low maintenance, allowing the homeowners to enjoy worry-free living without ongoing intervention. The system is grid-tied and fully net-metered, enabling surplus daytime production to generate credits that offset evening consumption. Importantly, the architecture is battery-ready, with inverter capacity and protections sized to allow seamless storage integration if desired in the future.
The financial and technical logic aligns closely with the principles outlined in Residential Solar Installation Philippines: Slash Bills & Gain Energy Freedom in 2026, where disciplined sizing and quality equipment produce rapid payback in high-tariff environments.
Beautifully executed and engineered for simplicity, this installation typifies steady generation, zero billing, and long-term energy confidence.
System Performance
- System Size: 10.90 kWp
- Annual Generation: 16,078 kWh
- Day Peak Load: 9.27 kW
- Payback/ROI: 4.0 years
Financial Impact
- Daily Savings: ₱536
- Monthly Savings: ₱16,078
- Annual Savings: ₱192,930
- Lifetime Savings: ₱4,972,222
Technology Partners
- Inverters: SMA Germany SMA 6.0 x 2
- Modules: Sunova Solar Bifacial
- Monitoring and Control: SMA ennexOS / Sunny Portal
Sustainability Impact
- TREES Planted Lifetime: 531
- CO₂ Lifetime: 225 tons
- Houses Powered Annually: 7











