We’re a community of professionals committed to sustainability
We’re partners with 1% for the Planet
NESEA is a nonprofit partner of 1% for the Planet, an international alliance of nearly 1,500 member companies that contribute 1 percent of their revenue to environmental causes. When you donate to us through 1%, you both support our mission and make a public statement about investing in the future of our planet. Please join this important effort—and choose NESEA for your 1 percent.
Founded in 1974, the Northeast Sustainable Energy Association (NESEA) is today the region’s leading membership organization promoting sustainable energy practices in the built environment. We as professionals in the fields of renewable energy and building embrace whole systems thinking as the path to sustainability.
Our work is vital. 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 (we say it “NESS-e”) 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 annual BuildingEnergy conference and trade show.
We focus on three core elements:
1. A diverse, multidisciplinary network
NESEA’s overarching goal is to create, support, and inspire a multidisciplinary network of building and energy professionals who are guided by whole systems thinking. Our growing membership comprises architects, engineers, educators, builders, energy consultants, renewable energy manufacturers and installers, policy makers, facilities managers, planners, and students.
2. Sustainable energy solutions for the built environment
We aim to promote the development of superefficient building techniques, to make such techniques the standard, and to help bring clean, renewable energy into everyday use.
3. Proven results in the field: no greenwashing here
There are a lot of so-called green techniques, products, and ideas out there. What works, and what doesn’t? We’re committed to results, and to separating the wheat from the chaff.
NESEA is a chapter of the American Solar Energy Society.




