Project Name: Troy Small Hydro Redevelopment Project

Subject: Fast-track design-build redevelopment of small hydro

Client: Troy Mills Hydroelectric, LLC

Project Location: Troy, VT

Project Size: 992 kW

Services Provided:
• Hydro Feasibility & Planning
• Hydro Energy Analysis
• Hydropower Facility and Equipment Condition Assessment
• Hydroelectric Powerhouse Engineering
• Penstock Inspection and Design
• Intake Rehabilitation Design
• Specifications and Drawings
• Construction Services
• Agency Consultation
• Regulatory Strategic Planning
• FERC Compliance Management and Implementation
• Environmental Permitting

Project Timeframe: 2011 - 2013

Relationship with Client: Since 1980’s

Client Needs:
The Troy Hydroelectric Project ceased operation in 1998 when a high flow event filled the intake and forebay with sediment and damaged the generator. The project was purchased by Troy Mills Hydroelectric, Inc., a new small hydro developer who required full discipline consulting and engineering services to support rehabilitation of the intake and construction of a new powerhouse with new generating equipment.

Kleinschmidt Solution:
Kleinschmidt provided civil, mechanical, electrical, and structural engineering services, as well as permitting and regulatory compliance support. Kleinschmidt participated in feasibility studies and evaluated various options for intake, powerhouse, and generating equipment repairs and modifications. The selected alternative included reconfiguring the intake to meet agency requirements for fish protection , improving debris handling, and reducing head losses. Deteriorated conditions and final equipment selection warranted full replacement of the powerhouse and generating equipment. Kleinschmidt designed the new facilities, assisted in procuring permits, prepared construction drawings and specifications, and provided technical support during construction. Kleinschmidt also provided energy modeling to support the receipt of state and federal grants and tax credits which helped make the redevelopment of this project economically feasible for the developer.

Client Benefits:
Kleinschmidt worked closely with the developer and contractor using a design-build approach to help bring the abandoned hydroelectric project back online in a cost-effective and timely manner. The new intake was designed and constructed during a first summer construction season and after the Owner’s final selection of the generation equipment the new powerhouse was designed, constructed, and generating power in less than eight months.