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WOFATI, an acronym coined by Paul Wheaton, stands for Woodland Oehler Freaky-cheap Annualized Thermal Inertia. It defines a type of earth-sheltered, passive building that blends affordability with energy efficiency. Inspired by the work of Mike Oehler, a pioneer of earth-sheltered building, WOFATI designs use locally sourced, natural materials, such as wood and earth, to minimize both cost and environmental impact. Central to the WOFATI concept is Annualized Thermal Inertia, which utilizes the surrounding earth as a thermal mass to moderate temperatures year-round. This means that the building stays warm in the winter by storing heat from the summer, and cool in the summer by retaining the coolness of the winter, greatly reducing the need for artificial heating and cooling. WOFATI structures typically have a large gable roof on the downhill side, and at least 35% of the uphill wall is made of glass or other light-transmitting material to maximize passive solar gain. WOFATI buildings are ideally situated on or near a woodland, emphasizing a harmonious integration with nature. Allerton Abbey, the first WOFATI, along with Wofati 0.8, are examples of this building style and can be found at Wheaton Labs.

Dehydrating food with electricity can cost hundreds of dollars, plus heat your house when you don't want heat. A solar dehydrator not only runs for free, but is arguably the most efficient use of solar power. Solar dehydrators can be made from different recycled materials: old refrigerators, reclamed lumber, sheet glass and miscellaneous hardware.

The terms "woodland" and "forest" are often used interchangeably, but in the context of permaculture and sustainable land management, a nuanced distinction emerges. "Forest" frequently carries connotations of traditional forestry practices, which often prioritize timber production and can involve techniques like clear-cutting and monoculture planting. These practices can be detrimental to biodiversity, soil health, and overall ecological balance, leading to what Sepp Holzer refers to as a "conifer desert". In contrast, "woodland" suggests a more holistic and integrated ecosystem, managed with an emphasis on biodiversity, ecological balance, and the interconnectedness of all life forms. This perspective aligns with the principles of permaculture and the vision of HUSP (Horticulture of the United States of Pocahontas), which draw inspiration from traditional Indigenous land management practices that emphasize respect for the Earth.

Hugelkultur is soil on wood. When stacked seven feet high, it provides all of the water and nutrition for a full garden.