The National Center for Appropriate Technology (NCAT) is an American organization headquartered in Butte, MT that is dedicated to appropriate technology

Appropriate technology

Appropriate technology is an ideological movement originally articulated as "intermediate technology" by the economist Dr...

 and sustainability

Sustainability

Sustainability is the capacity to endure. For humans, sustainability is the long-term maintenance of well being, which has environmental, economic, and social dimensions, and encompasses the concept of union, an interdependent relationship and mutual responsible position with all living and non...

. Projects specifically deal with sustainable energy, sustainable food/agriculture, farm energy, and climate change.

It carries out projects within the USA, especially in poor, rural areas. It has regional offices in Davis, CA, Fayetteville, AR, Hammond, LA, Des Moines, IA, and Shavertown, PA.