distributed energy system Articles
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Terrorism and the ultimate corporate environmental strategy
This article points to the signs of a shift from the model of an over-dependence on central power plants to a distributed renewable energy system, and discusses the major growth opportunities for businesses developing new technologies. Our electricity grid, with its emphasis on large polluting and centralized power plants that inefficiently send power long distances over transmission lines, is ...
By AHC Group
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Smart metering use cases to increase water and energy efficiency in water supply systems
Efficient water and energy use in water distribution systems is being limited by the lack of sufficient data about water and related energy consumption. Therefore, it is crucial to provide updated and continuous feedback information to water users. This paper describes relevant use cases to improve efficient water use and related energy consumption by water utilities and consumers through the ...
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Assessment of variable speed pumps in water distribution systems considering water leakage and transient operations
In this study, the potential economic and hydraulic benefits of utilizing variable speed pumps (VSPs) in water supply systems are reported. A simple water distribution network simulation is carried out by EPANET and Bentley HAMMER models to examine variable speed operation. It was found that using VSPs could control and improve performance of the water distribution systems. Where the ...
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Leakage control of multi-source water distribution system by network partition and optimal pump schedule in China
The main aim of an optimal schedule of conventional multi-source water distribution system is to reduce the energy consumption rather than minimizing the network leakage. This research is on the premise of meeting water demand, pressure and water quality considering the states of valve opening and closing, the states of pump opening and closing, and the pump speed as solution space. The ...
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Testing and developing energy harvester systems for operation of energy-self-sufficient measurement and control units in drinking water supply
In recent years, wireless measurement and control units have become more popular for monitoring water distribution systems in the drinking water supply. Electric power supply for a higher number of devices through fixed connections to the public electrical grid is technically complex and requires large investments. Powering monitoring devices, which are installed in areas where electrical ...
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Optimization of pumping schedule based on water demand forecasting using a combined model of autoregressive integrated moving average and exponential smoothing
Stable water supply to end users is the most important element in water supply systems (WSSs). The portion of energy used by the water distribution system is up to 40% of the total energy consumed by WSSs. To save energy cost for pumping systems, a number of attempts have been made. Especially, an optimization scheme for scheduling the water-pumping operation has attracted the interest ...
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Energy efficiency in water distribution systems - A path to an ideal network - AGS experience
Water utilities’ responsibility to deliver quality and reliable service under a sustainable basis requires an increasingly efficient management and therefore an asset management strategy that ensures high levels of service, safe and reliable drinking-water quality and an appropriate network performance. In Portugal, IAM gave a step forward with a recent Portuguese decree law (Decreto-Lei ...
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Energy efficiency in water distribution systems – a path to an ideal network: AGS experience
Infrastructure asset management (IAM) gave a step forward in Portuguese water utilities due to recent legal obligations in developing IAM plans. An effort was made by AGS (Administração e Gestão de Sistemas de Salubridade, S.A.), private operator in 17 water utilities, to achieve a higher level of managing data. Data management was an important hurdle to be overcome in ...
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