Reclamation to install systems for control of quagga, zebra mussels
The U.S. Department of Interior's Bureau of Reclamation is working to hire firms that will provide underwater pulsed pressure generating systems and expertise to control invasive quagga and zebra mussels.
These mussels are invasive species that arrived in North America from Europe in the 1980s. By 1990, zebra mussels had been found in all five Great Lakes, and over the next two years they made their way into the major tributaries of the Mississippi River system.
Reclamation has been conducting a multi-pronged effort to find ways to combat zebra and quagga mussels in its reservoirs. Other work involves hiring firms to produce custom antibodies that would bind to quagga and zebra mussel larvae to simplify their detection in water resources facilities.
Pulsed pressure technology - such as air guns or water guns used for seismic surveying or electrical hydroacoustic technologies - is proposed to kill or prevent settlement of larval mussels on submerged hydraulic structures and in piped systems.
Handbook provides guidance on small hydropower in Colorado
The Colorado Energy Office announces availability of the Small Hydropower Handbook, intended to provide a resource for developers, utilities, agricultural businesses and others interested in developing a small hydropower project in Colorado.
This 100-page handbook covers five steps in the development of a small hydropower project:
- Site assessment, including the location, body of water, road access and more;
- Feasibility assessment, including the general project type, head and flow, penstock selection, turbine selection, powerhouse, controls, electrical interconnection and state electrical board, finding a buyer for the energy and renewable energy credits, permitting types and timelines, construction costs and cost categories, federal and state incentives, and economic modeling;
- Permitting, finance, interconnection;
- Final design and construction, including construction contract options, construction management, inspection approval and the state electrical board, and construction permitting; and
- Commissioning and communication.
The handbook says there is no widely accepted definition of the term "small hydropower;" for the handbook, small hydro is defined as meaning development on existing infrastructure or hydropower with generating capacity of 2 MW or less.
Awards presented at HydroVision International
The Attendees' Choice and Best Technical Papers awards were presented during the HydroVision International 2013 closing luncheon in late July in Denver, Colo. This is the second year for this awards program.
For the Attendees' Choice Awards, the top three sessions each day, chosen by conference delegates, were presented with this award. The Best Technical Papers Awards were given to the three strongest technical papers in five categories, as chosen by the technical papers committee.
For a complete list of winners, visit the HydroVision website at www.hydroevent.com, click on the Conference tab at top and then click on 2013 Technical Papers of the Year Awards or 2013 Attendee Choice Award Winners at left.