The Gulf Island – Deer Rips Hydroelectric Project is located on the Androscoggin River in Lewiston and Auburn, Maine.  There are numerous other hydroelectric projects on the Androscoggin River in New Hampshire and Maine.  The Project consists of two developments:  Gulf Island and Deer Rips / Androscoggin No. 3 (A-3).  Only Deer Rips and A-3 are included in the LIHI certification.  The Project is owned by Brookfield White Pine Hydro (Brookfield Renewable Energy Group).

Project Name Deer Rips /  Androscoggin No. 3
LIHI Certificate No.
163
LIHI Certificate Term
June 17, 2019 – June 16, 2024
Owner Brookfield White Pine Hydro LLC
State Maine
Location 3.71 miles above Little Androscoggin River, Androscoggin River mile 33.7 (as measured from Brick Island)
Installed Capacity Total: 11.75 MW

Deer Rips: 7.245 MW

A-3: 4.5 MW

Average Annual Generation Total: 66,346 MWh

Deer Rips: 36,879 MWh

A-3: 29,467 MWh

Facility Type Run of river
FERC No. 2283 (part of the Gulf Island Deer Rips Project)

Deer Rips was constructed in 1904 and A-3 in 1928.  The Project was most recently relicensed by FERC in 2006.  The Deer Rips dam is a three-section structure, 933 feet long with a 738 -foot-long spillway section and maximum height of 50 feet.  The spillway is topped with a 4.5-foot-high rubber dam. The 130-acre impoundment extends about 1.3 miles upstream to the Gulf Island development.  The dam contains a headworks section of the Deer Rips powerhouse, located on the west side of the river.  A 94-footlong headworks section on the west side of the dam has a waste gate that discharges just below the dam and 8 other gates that lead to a 650-foot-long power canal.   The canal creates a bypassed reach approximately 700 feet long. The Deer Rips powerhouse contains seven turbines:  five horizontal twin-runner Francis units, and 2 vertical Francis units with a total capacity of 7.245 MW.  A forebay on the east bank of the river leads to a headworks section of the Androscoggin No. 3 powerhouse which contains a single vertical fixed blade propeller unit with a capacity of 4.5 MW.

Certification History:

September 27, 2019:  The decision to certify the Deer Rips/Androscoggin No. 3 project is final.  No appeal requests were received during the appeals period that closed September 26, 2019.  The project is LIHI #163 with a term from June 17, 2019 – June 16, 2024.

August 27, 2019: The Low Impact Hydropower Institute has preliminarily approved Low Impact Certification for the Deer Rips/Androscoggin No. 3 Hydroelectric Project.

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 “Deer Rips Hydroelectric Project” in the subject line, or by mail addressed to the Low Impact Hydropower Institute, 329 Massachusetts Ave, Suite 6, Lexington, MA 02420. 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 September 26, 2019.  The full application and reviewers report are available below.

If no appeal requests are received and the decision becomes final, the Certification term for the Project (pending LIHI #163) will be June 17, 2019 for a term of five (5) years, which will expire on June 16, 2024.

June 18, 2019: The Low Impact Hydropower Institute has received a complete application for Low Impact Certification of the Deer Rips – Androscoggin No. 3 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.  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 “Deer Rips – Androscoggin No. 3 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 17, 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.

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