| Sustainable Feature | Impact | |---------------------|--------| | – 45 kW solar array | Off‑grid power for lighting and HVAC | | Rainwater harvesting – 12,000 gal storage | Provides irrigation for native landscaping | | Geothermal heat pump | Reduces heating/cooling demand by up to 55 % | | Low‑emissivity triple‑glazed windows | Cuts heat loss while maximizing river views | | Smart home integration – AI‑driven energy management | Optimizes appliance usage based on real‑time utility rates |