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Integration of renewable resources improves reliability much compared to a single source. However, availability is still a concern, as probabilistic nature of such sources. Hence, electric vehicles (EV) are utilized to function as a transportation as well as storage units to attain maximum availability at lowest cost. A case study held at National Guard facility in Saudi Arabia to assess feasibility...
The National Guard facility located in AlAhsa whose rating is 5 MVA suffers from repetitive power service interruption, especially during peak times. Furthermore, the facility that includes utility, residential, and commercial is expected to go through so huge expansion that the existing power system cannot meet the new power demand. Thus, either the entire system has to be upgraded, or new system...
This paper addresses reliability and availability of power infrastructure in telecom core and data centers. Special attention is given to modelling of solar and wind power sources in terms of availability as well as their implementation into critical infrastructure. Influence on overall electrical reliability and availability of infrastructure is shown in different topologies. Architecture of the...
Energy storage system is necessary to maintain steady operation of the micro-grid and decrease its influence on the distribution grid. In this paper, some research has been carried on in optimal storage sizing in composite energy storage system in wind micro grid. The energy storage system is composed of battery and fly-wheel, which combines advantages of both sides. Cost function is used as the objective...
Energy has always been an important factor for socio-economic development of humans. Most of the energy is generated from fossil fuels in the world. Nevertheless, environmental aspects and depleting of fossil fuels causes increase of renewable energy utilization. The produced energy from renewable energy resources are transferred to grid or used in stand-alone systems. As energy generation depends...
The objective of this paper is to demonstrate 1) how adding storage capacity to a network can mitigate the variability of wind generation and increase the system benefits, and 2) how the stochastic characteristics of the wind generation affect the system benefits of storage capacity. Two types of storage are considered. One represents utility-scale storage that is collocated at the wind sites, and...
Due to its higher photovoltaic efficiency, CPV has the advantage of needing a smaller panel footprint than fixed PV systems. This characteristic makes it ideal for use as an independent power supply in remote locations where transportation and site procurement present a challenge. The overall system needs to be compact and light without sacrificing weather resistance. Skilled personnel are scarce...
Over last two decades, solar and wind energies have become an alternative to traditional energy sources. These alternative energy sources are non-polluting, free in their availability and are renewable. Another alternative is tidal energy, which is related to falling and rising ocean water levels. Tidal behavior can be predicted easily and this means that if it is enabling to harness tidal energy,...
This paper describes the operation and application of closed cycle vapor turbogenerators (CCVT) which have been used at thousands of remote telecommunication locations over the past 15 years. The hermetically sealed Rankine-cycle system has only one moving part which rides on fluid bearings, eliminating metal-to-metal contact and wear, and, in turn, permitting the turbine to run continuously for 20...
The Hybrid Wind/Closed Cycle Vapor Turbogenerator (CCVT) power system was developed to provide the most reliable, cost-effective remote power system available for loads in the range of 300 to 3000 watts. While the CCVT has a proven record of reliability, it requires fuel for its operation. On the other hand, the wind generator does not require any fuel but is subject to the vagaries of the wind. By...
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