High Falls Project – Complete Application Received

November 10, 2022:  The Low Impact Hydropower Institute (LIHI) has preliminarily approved Low Impact Certification (pending LIHI #192) for the High Falls Hydroelectric Project. The full application and reviewer's report are available below.

This decision is preliminary pending the 30-day appeal window. Only those who commented on the initial application during the 60-day comment period are eligible to file an appeal. Such appeal needs to include an explanation as to how the Project does not meet the LIHI criteria. Appeal requests can be submitted by email to comments@lowimpacthydro.org with "American Tissue Project” in the subject line, or by mail addressed to the Low Impact Hydropower Institute, 1167 Massachusetts Ave. Arlington, MA 02476. All requests will be posted to the website. The applicant will have an opportunity to respond and any response will also be posted. Requests must be received by 5 pm Eastern time on December 10, 2022.

If no appeal requests are received the certification term will be October 4, 2022 through October 3, 2032.

July 15, 2022: The Low Impact Hydropower Institute has received a complete application for Low Impact Certification of the High Falls (Copenhagen) Hydroelectric Project.  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.  The Project’s application materials can be found 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 “High Falls Project Comments” in the subject line, or by mail addressed to the Low Impact Hydropower Institute, 1167 Massachusetts Avenue, Office 407, Arlington, MA 02476.  Comments must be received on or before 5 pm Eastern time on September 13, 2022 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.

Project Name High Falls
LIHI Certificate No. Pending #192
LIHI Certificate Term October 4, 2022 – October 3, 2032
Owner Copenhagen Hydro, LLC (a subsidiary of Central Rivers Power, LLC)
State New York
Location River Mile 7.75 on the Deer River
Installed Capacity 3.43 MW
Average Annual Generation 8,000 MWh
Facility Type Run of river
FERC No. P-3754, Exemption issued January 14, 1982

The High Falls Hydroelectric Project is located on the Deer River in Lewis County, New York and is owned and operated by Copenhagen Hydro, LLC, a subsidiary of Central Rivers Power, LLC (CRP). The Deer River is 27 miles long and a tributary to the Black River, therefore part of the Black River Watershed. The Deer River sub-watershed drains 62,270 acres with average annual precipitation of 56.3 inches. The Deer River sub-watershed has a total of 250.3 miles of stream length, with 98.8 miles considered trout streams. The Deer River itself originates from Tug Hill, and flows generally north.

The High Falls Dam was originally built in 1909 by the Deer River Power Company and is located 7.75 river miles (RM) upstream from the Black River confluence. In 1982, the Project was exempted from licensing by the Federal Energy Regulatory Commission (FERC).

The Project consists of a 175-ft long and 25-ft high concrete gravity dam, a reservoir, a 1,350-ft long penstock, and a powerhouse, transmission line, and appurtenant facilities. The Project has an installed capacity of 3,429 kilowatts (kW). The impoundment has negligible storage capacity and is kept at 1,140 feet mean sea level (msl). The impoundment is situated directly above a steep drop off with the penstock following the top eastern ridge line until plunging towards the powerhouse located along the riverbank.

The Project operates as a true run-of-river facility meaning any water that approaches the dam is either released back into the Deer River downstream of the dam or through the powerhouse.


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