¿ªÔÆÌåÓý

¿ªÔÆÌåÓý is independent, community-supported media, serving Vermont with trusted, relevant and essential information. We share stories that bring people together, from every corner of our region. New to ¿ªÔÆÌåÓý? Start here.

© 2025 ¿ªÔÆÌåÓý | 365 Troy Ave. Colchester, VT 05446

Public Files:
· · · ·
· · · ·
· · · ·
· ·

For assistance accessing our public files, please contact [email protected] or call 802-655-9451.
Play Live Radio
Next Up:
0:00
0:00
0:00 0:00
Available On Air Stations

NH hydroelectric dams are seeking new certifications. Here's how to weigh in.

Whitewater rushes out of Wilder Dam, near Hanover, in 2018.
Britta Greene
/
NHPR
Whitewater rushes out of Wilder Dam, near Hanover, NH, in 2018. NHPR photo.

Three hydroelectric dams in New Hampshire are due for relicensing after nearly 50 years. State residents have a chance to weigh in on those plans.

The Bellows Falls dam in , the Wilder dam in and the Vernon dam in are all owned by Great River Hydro, the region’s . The company, based in Massachusetts, has 13 hydro stations throughout New England.

The structures were last awarded licenses in 1979, and to renew them, they need water quality from New Hampshire's Department of Environmental Services. Federal licences for hydro dams are generally in terms of 30 to 50 years.

People have until April 11 to submit comments on the state's draft certification for those dams. Instructions for submitting comments can be found .

The certifications are meant to protect water in New Hampshire for recreation and wildlife. They outline a series of conditions for how the dams can operate � for example, how many hours per month they can store water to generate power instead of letting it flow through or when they must help fish and eels pass upstream or downstream.

The state certifications also require dam operators to create management plans for invasive plant species, and to agree to create a water quality improvement plan in the future if state regulators determine the project is violating state standards.

Advocates with the Connecticut River Conservancy have about the quality of the data provided by Great River Hydro and about the potential damage the projects could cause.

“CRC is not confident that the designated uses for the river will be protected, particularly in the face of increasing climate change impacts, without robust and comprehensive conditions attached or outright denial of the certification,� the group wrote in comments submitted to regulators.

Sign up & receive top NH news stories delivered to you daily.

* indicates required

Mara Hoplamazian reports on climate change, energy, and the environment for NHPR.

Have questions, comments or tips? Send us a message.

Loading...


Latest Stories