Dakota County, Minn., seeks proposals from engineers or manufacturers to evaluate ways to increase the generating efficiency of the 2.2-MW Byllesby Dam hydroelectric project on Minnesota's Cannon River. Proposals are due Feb. 7.
Dakota County holds a Federal Energy Regulatory Commission exemption for the project, Lake Byllesby (No. 6299). Byllesby Dam generates 11,200 MWh per year from three turbine-generators that were installed in 1910 and 1915.
The county said it has determined the project has a potential for long-term power production increases, with studies having been conducted by the firms R.W. Beck, Hatch and Mead & Hunt.
It now seeks an engineering consultant or manufacturer to evaluate current turbine operations at Byllesby Dam including turbine management, historical flow rates, historical power production data and all current turbine information. After evaluating the data, the consultant is to evaluate what can change operationally for power production increased efficiency. The study is to outline a plan for phased upgrades including preliminary costs, cost-benefit ratios, payback schedules and phase-out of current equipment.
Solicitation documents may be obtained via the Dakota County Internet site at http://www.co.dakota.mn.us/Government/DoingBusiness/BidProposalsInformation/Pages/lake-byllesby-dam-projects.aspx. Questions may be submitted until 4:30 p.m., Central time, Jan. 24 by e-mail to the address below.
Bids are due by noon, Central time, Feb. 7 to the address below. For information, contact Josh Petersen, Dakota County Western Service Center, 3rd Floor, Environmental Resources Dept., 14955 Galaxie Ave., Apple Valley, MN 55124; E-mail: email@example.com.