Kupono Hale, located in upcountry Maui, showcases a sophisticated off-grid energy system, reflecting cutting-edge sustainability and efficiency. At its core is an all-in-one power solution featuring 16 kilowatt-hours of lithium ferrous phosphate batteries paired with a hybrid inverter. This system integrates photovoltaic (PV) inputs, a generator, and communication components into a single, streamlined package. Assembling these components in a controlled environment ensures an efficient installation process, connecting seamlessly to the home’s solar panels, generator, and energy loads. The result is a self-sufficient, reliable energy setup designed to handle the demands of modern living.

The design makes innovative use of materials to maximize energy generation and efficiency. The bifacial glass solar panel array serves dual purposes, generating power from both direct sunlight and reflected light from the concrete below. Oriented eastward, these panels optimize morning energy production while doubling as a durable, waterproof roofing structure for an outdoor dining space. This multi-functional approach eliminates the need for traditional roofing materials, reducing costs and enhancing the project’s aesthetic appeal. By integrating these elements, the home embodies a balance of functionality, sustainability, and beauty.

In designing for Hawaii’s unique climate, this home addresses challenges posed by the tropical environment. A breathtaking west-facing bicoastal view necessitated innovative solutions to mitigate heat gain from low-angle afternoon sunlight. The design features a dynamic roof form with a subtly diagonal ridge, creating a compound curve that balances passive solar principles with site-specific needs. This thoughtful roof design not only protects against heat buildup but also celebrates the surrounding natural beauty. The result is an enduring structure that harmonizes with its environment while offering a visually striking and climate-responsive solution.

The home’s sustainable features extend beyond its energy systems, reflecting a deep connection to Hawaii’s resources and history. The ceiling, crafted from locally sourced Cook pine, repurposes trees initially introduced for reforestation but now reaching the end of their life cycle. Walls constructed with insulated composite concrete forms(ICCF) that incorporate recycled EPS, transform waste into high-efficiency materials with exceptional thermal performance. These elements showcase a commitment to using local, renewable resources while reducing landfill contributions and creating a home that prioritizes both sustainability and strength.

Durability and resourcefulness define the home’s construction. Mold- and termite-resistant concrete walls with foam insulation offer resilience against hurricanes and earthquakes, while ensuring superior energy efficiency and comfort. Rainwater catchment systems integrate seamlessly into the design, filtering and storing water for household and landscaping use with minimal maintenance. These features, combined with the house’s off-grid power and thoughtful material choices, create a self-sustaining sanctuary that honors its surroundings, balances aesthetics with practicality, and stands as a testament to innovative, place-specific architecture.