Northeast Sustainable Energy Association (NESEA)

The Northeast Sustainable Energy Association (NESEA) helps high-performance building and energy efficiency professionals improve their practices by learning from and networking with one another. Founded in 1975, NESEA is today the region's leading 501(c)(3) membership organization promoting sustainable energy practices in the built environment.

Our work is vital to increasing sustainability, especially in the building sector. In the United States, the building sector accounts for nearly half of all energy consumption. It also produces nearly half of all greenhouse gas emissions, making it the largest single contributor to climate change. To shape the built environment is to shape the future not only of our cities and towns, but also of our planet.

Headquartered in Greenfield, MA, NESEA operates primarily in the northeastern United States (the six New England states plus New York, New Jersey, Delaware, and Pennsylvania), but we increasingly reach out to share ideas nationally and internationally. For example, we’ve collaborated with the German Consulate and the Upper Austria Trade Commission to bring cutting-edge products and information from Europe to our BuildingEnergy conferences & trade shows.