NH3

The Lower Robertson and Ashuelot Hydroelectric Projects – are located on the Ashuelot River in Winchester, NH, off Route 119 between the village of Ashuelot and the Town of Hinsdale. The Lower Robertson facility is easily visible from Route 119 and is approximately 1 mile upstream of Ashuelot, which is located at 80 Lost Road, an unmarked road off of Route 119.

Project Name Ashuelot River & Lower Robertson
LIHI Certificate Number 46
LIHI Effective and
Expiration Dates
June 29, 2014
June 29, 2019
Owner Ashuelot Hydro, Inc.
State New Hampshire
Location Located on the Ashuelot River in Winchester, New Hampshire, off Route 119 between the village of Ashuelot and the Town of Hinsdale. The Lower Robertson facility is approximately one mile upstream of Ashuelot.
Installed Capacity Ashuelot River: 870 KW
Lower Robertson: 840 KW
Average Annual Generation Ashuelot River: 3,300 MWh
Lower Robertson: 3,200 MWh
Facility Type Run-of-river
FERC No. Ashuelot River: 7791 exempt
Lower Robertson: 8235 exempt

Both projects have FERC Exemptions that were issued on July 31, 1986. The Lower Robertson Hydroelectric Project, operates under FERC Exemption No. 8235 and Ashuelot River Hydroelectric Project operates under FERC Exemption No. 7791.  Both projects are small, low head, run-of-river hydro plants built in the mid 1980’s at existing paper company dams. The Applicant  purchased the projects in 2007 and has operated them ever since.

The run-of-river Lower Robertson  Project consists of:

  • an 18-foot-high by 125-foot-long Lower Robertson Dam with a spillway crest elevation of 384.6 mean sea level (msl);
  • 5-foot-high flashboards which raised the normal maximum pool elevation to 386.1-feet msl;
  • An impoundment with a surface area of 8.6 acres;
  • An intake structure and powerhouse at the north end of the dam with 3 turbine generator units with a total installed capacity of 840 kw; and,
  • a short tailrace.

The run-of-river Ashuelot Hydro Project consists of:

  • an 18-foot-high by 144.5-foot-long timber cribbed Ashuelot Paper Company Dam with a spillway crest elevation of 335.4 mean sea level (msl);
  • 5-foot-high flashboards which raised the normal maximum pool elevation to 338.9-feet msl;
  • A small impoundment;
  • An intake structure and powerhouse at the south end of the dam with 3 turbine generator units with a total installed capacity of 870 kW ; and,
  • a 100-foot-long

The FERC exemption orders require the owner to adhere to conditions originally issued by New Hampshire Fish & Game and U.S. Fish and Wildlife that instantaneous flows of 203 cfs (0.5 cfs/sm) be passed at all times. At the request of a previous project owner, FERC and those agencies approved a stream flow gauging plan by orders dated November 1, 1994 (ASH) and May 16, 1995 (ROB). Under the current ownership, both projects are operated as run-of-river facilities in compliance with the conditions in the FERC exemption orders.

NH4

Certification History

June 11, 2019: The Low Impact Hydropower Institute has received a complete application for Low Impact Recertification of the Ashuelot River/Lower Robertson Hydroelectric Projects.  LIHI is seeking public comment on this application.  Specifically, we are interested in knowing whether you think the Project meets the LIHI Low Impact Certification Criteria, as revised in the 2nd Edition Handbook.  Please review the program and criteria in LIHI’s revised Handbook and then review the Project’s application materials below.

Comments that are directly tied to specific LIHI criteria (flows, water quality, fish passage, etc.) will be most helpful, but all comments will be considered.  Comments may be submitted to the Institute by e-mail at comments@lowimpacthydro.org with “Ashuelot River Project Comments” in the subject line, or by mail addressed to the Low Impact Hydropower Institute, 329 Massachusetts Avenue, Suite 6, Lexington, MA 02420.  Comments must be received on or before 5 pm Eastern time on August 10, 2019 to be considered.  All comments will be posted to the web site and the applicant will have an opportunity to respond.  Any response will also be posted.

April 8, 2015: The Ashuelot River Hydroelectric Project has been certified for a second five-year term of low impact certification, effective June 29, 2014 and expiring June 29, 2019. In rendering this Certification, the Institute’s Executive Director used authority delegated by the LIHI Governing Board and a full review of the Application Reviewer’s report (available in the Files section below) and all public comments and additional materials provided by the Applicant.

September 4, 2014: The Low Impact Hydropower Institute has received an application for a second term of certification of the Ashuelot River Hydroelectric Project. The application materials are available in the “Files” section below.

November 20, 2009: The Ashuelot River Hydroelectric Project has been certified as low impact for a five year term, effective June 24, 2009 and expiring June 24, 2014.

June 29, 2009: Ashuelot Hydro, Inc. has submitted an application for certification of the Ashuelot and Lower Robertson Hydroelectric Projects. A public comment period for the application will remain open for 60 days, until August 30, 2009.


Files:

2019 Recertification

2014 Recertification

2009 Certification