Digital Commons Network^™

Assessing The Economic And Flow Regime Outcomes Of Alternative Hydropower Operations On The Connecticut River's Mainstem, Luke Detwiler

Environmental & Water Resources Engineering Masters Projects

Hydropower provides a source of reliable and inexpensive energy, producing approximately 20% of the global energy supply, though it comes at a cost to riverine ecosystems. To maximize revenues, major hydropower facilities store and release water with respect to short-term changes in energy price, causing significant sub-daily flow regime alterations that impact downstream ecological communities. In the United States, the Federal Energy Regulatory Commission (FERC) is responsible for hydropower regulation and this is administered, in part, during periodic relicensing of existing facilities. The process of relicensing provides the opportunity to evaluate the goals and concerns of interested parties and evaluate …

Session E9: Function Control Of Fish Migration Facilities At The Hydro Power Plant Kostheim At River Main, Dr. Jörg Schneider

International Conference on Engineering and Ecohydrology for Fish Passage

Abstract:

Applying various conventional and modern monitoring methods a function control of downstream migration facilities and turbine passage related mortality was conducted at the Kostheim Hydro Plant (4,9 MW; two Kaplan turbines; Δh max. 3,74 m, at MQ 2,36 m) at the river Main (km 3,2). Furthermore, the perceptibility and passability of a nature-like bypass for upstream migration was examined. Results showed a size selectivity of the bypass caused by an unsuitable entrance position 40 m downstream of the outlet of the turbines. The effectiveness of the downstream migration facilities proved to be low, leading to high mortalities at the …

Session A7: Use Of Telemetry For Fish Ecological Survey In Europe, Beate Adam

International Conference on Engineering and Ecohydrology for Fish Passage

Abstract:

In contrast to the US, Canada, and Scandinavian Countries there are few and infrequent ecological studies on fish conducted in Europe which use telemetry systems such as hydro-acoustic, radio, or PIT technology. The reason for the infrequent use of these technologies is mostly the high cost of the equipment and lack of experienced staff to operate it. Within the framework of this introductory talk there will be an exemplary selection of recently conducted telemetry studies in Europe that demonstrate the application possibilities of these technologies and resultant findings. Due to the amended European Animal Welfare Act (2014) there exist …