Biosolar integration combines high-performance green roofs with photovoltaic (PV) solar panels, creating a synergistic system that maximizes both ecological and energy output.
- Optimized PV Performance: The cooling effect generated by the green roof's evapotranspiration lowers the ambient temperature immediately surrounding the solar panels. This can increase the efficiency (kW output) of the PV array by 5% to 15% compared to panels installed over bare, hot roofs.
- Ballast Reduction: The weight of the green roof media can often serve as the non-penetrating ballast needed to secure the solar racking system, eliminating the need for heavy concrete blocks or structural roof penetrations.
- Dual-Use Credit: Provides two forms of environmental credit—renewable energy generation and green area coverage—using the same rooftop footprint.
- System Protection: The green roof protects the PV wiring and ballast components from thermal expansion and degradation, ensuring the long-term reliability of the entire solar investment.