Assuming that interest groups, like households, firms, or any other structured organization, have limited resources but broad objectives, how do they pick and choose which regulatory battles to fight? The issue of interest group battle choice has received little direct attention in the literature, in large part because defining the state space of total interest group activity is often difficult...

Transient events often account for most of the fatigue damage sustained by hydroelectric turbines during operation. Since one of these damageable events is load rejection, this paper presents a study of the dynamic response of two hydroelectric turbines during load rejection. The two turbines are similar in design and in overall measured behavior. However, we observed that the two turbine runne...

Caruachi Hydroelectric Project conforms together with Guri, Tocoma and, Macagua the Lower Caroni Hydroelectric Development. Second Stage of River Diversion at Caruachi included diverting the Caroni River through 18, 5.5 × 9m sluices in the spillway lower body that after being closed by gates permitted the reservoir filling. In order to define the precise timing for closure of the sluices and to...

Based on the actual experiment signals of draft tube, the correlation dimension analysis has been carried on using the time domain signals. Through correlation dimension analysis of pressure fluctuating under different load, the results indicate that the pressure fluctuation conditions in draft tube are not same under different load, the corresponding fractal correlation dimensions are also dif...

Hydropower accounts for about 16 % of the world’s electricity supply. It has been debated whether hydroelectric generation is merely an in-stream water user or whether it also consumes water. In this paper we provide scientific support for the argument that hydroelectric generation is in most cases a significant water consumer. The study assesses the blue water footprint of hydroelectricity – t...

A very large hydroelectric generating project has been proposed for the northern regions of Quebec. Numerous benefits will be derived from this project: inexpensive power, reduced pollution, and improved quality of life. The native peoples living in the region object strongly, however, and claim that the project will destroy their culture. A 35-minute video describes this conflict and challenge...

Close to the border with Sudan, Ethiopia is currently building the largest hydroelectric power plant in Africa with a storage volume corresponding to approximately 1.5 years of the mean discharges of the Blue Nile. This endeavor is controversially debated in the public and the scientific literature. Contributing to this discussion, by shading some light on climate change issues, an eco-hydrolog...

In utilities using a mixture of hydroelectric and nonhydroelectric power, the economics of the hydroelectric plants depend upon the reservoir height and the inflow into the reservoir for several days into the future. Accurate forecasts of reservoir inflow allow the utility to feed proper amounts of fuel to individual plants, and to economically allocate the load between various non-hydroelectri...

In this research, a flood control operating strategy is developed based on simulation-optimization model to reduce damage downstream of multi-reservoir systems by using spillway gates. For purpose, an optimization algorithm introduced, in which the maximum water level points and hydropower potential generation season are objective functions, stages gates decision variables. A global tool, Shuff...

The hydroelectric power plants use technical instructions of maintenance and operation to instruct maintainers and operators about the maintenance and operation procedures to be executed in their generating units. These instructions consist of well defined scripts with 2d flat drawings and of activities in textual format. This paper presents an authoring tool that allows the construction of the...