Project: Kupono Hale
Architecture: Hawaii Off Grid Architecture & Engineering
Principal: David Sellers
Project Managers: Mathew Kopp
Architectural Staff: Jordan Haylor, Austin Pollard, Mykah Huang
Location: Makawao, Hawaii
Area: 999 ft2
Year: 2024
Photo Credits: Travis Rowan Media
Kupono Hale, located in upcountry Maui, showcases a sophisticated off-grid energy system. Designed by Markéta Cajthamlová Studio, this home emphasizes cutting-edge sustainability and efficiency. At its core lies 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. By assembling these components in a controlled environment, the installation process becomes efficient and seamless. The setup connects smoothly to the home’s solar panels, generator, and energy loads, resulting in a reliable and self-sufficient energy system tailored for modern living.
Maximizing Energy Generation with Smart Materials
The design of Kupono Hale makes innovative use of materials to enhance energy generation and efficiency. The bifacial glass solar panel array serves a dual purpose: it generates power from both direct sunlight and reflected light from the concrete below. Oriented eastward, these panels optimize morning energy production while also acting 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 boosting the project’s aesthetic appeal. By integrating these elements, the home achieves a perfect balance of functionality, sustainability, and beauty.
Climate-Responsive Architecture for Tropical Living
In designing for Hawaii’s unique climate, Kupono Hale addresses challenges posed by the tropical environment. A stunning west-facing bicoastal view required innovative solutions to reduce 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. As a result, the structure harmonizes with its environment while offering a visually striking and climate-responsive solution.
Sustainable Materials and Local Resources
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. Additionally, walls constructed with insulated composite concrete forms (ICCF) incorporate recycled EPS, transforming waste into high-efficiency materials with exceptional thermal performance. These choices showcase a commitment to using local, renewable resources while reducing landfill contributions. The result is a home that prioritizes both sustainability and strength.
Durability and Resourcefulness in Construction
Durability and resourcefulness define Kupono Hale’s construction. Mold- and termite-resistant concrete walls with foam insulation offer resilience against hurricanes and earthquakes, 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. Kupono Hale honors its surroundings, balances aesthetics with practicality, and stands as a model of innovative, place-specific architecture.
A Sustainable and Beautiful Sanctuary
Kupono Hale by Markéta Cajthamlová Studio exemplifies how thoughtful design can create a sustainable and beautiful home. By integrating advanced energy solutions, smart materials, and climate-responsive architecture, the home offers a comfortable and eco-friendly living environment. This project highlights the potential of sustainable architecture to enhance both functionality and aesthetic appeal, making Kupono Hale a true sanctuary in the heart of Maui.
