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Hydrogen is considered a viable option for replacing fossil fuels not only because it can reduce the emissions but it also can be used as a storage option to balance the electricity grid. Current research aims the economic analysis of hydrogen production in context of a microgrid which includes 3 levels of supply, conversion and storage and primary end user. The economic feasibility of hydrogen production...
This paper presents the results that were obtained in the scope of a consultancy study developed by INESC TEC for a Portuguese distribution network company to evaluate the interest of installing storage devices and PV panels in LV installations. We conducted simulations for consumers with annual demands of 5000 kWh (Type C consumers) and 7500 kWh (Type B consumers). In general, we concluded that the...
Obsolescence is a distinctive state of both (physical) products and information, and it is commonly defined as the condition of being outdated or no longer useful. For the U.S Department of Defense (DoD), obsolescence is a serious matter that affects a host of military systems, by making it challenging to procure specific parts needed to build or repair them. For commercial engineering systems, obsolescence...
Storage technologies are expected to assume an increasing relevance in the next few years, given the widespread number of available options, the possible applications and the reduction of investment costs. Therefore and apart from the well-known hydro pumping stations, the installation of storage is being considered as an increasingly viable option namely in distribution networks and also in end user...
Nigeria has a population of over 160 million, and just over 50% have electricity access. Many initiatives promote solar energy development to mitigate Nigeria's power challenges. This work shows an economic valuation of the solar photovoltaic (PV) potential in Nigeria. Assuming a 100 megawatts (MW) capacity upgrade, this paper compares distributed residential-scale and centralized utility-scale PV...
The technical and economic assessment of voltage sag are analyzed in this paper, Specially, on one side, the sag conditions of customers are got by Monte Carlo prediction considering about randomness of sag event, on the other side, the equipment failure rate is counted by probability method due to the uncertain sensitivity and different tapes and the composition of sensitive equipment. Then the sag...
In the present paper, authors presents a value-based comparative analysis between electrical thermal demand tracking modes of operations at the planning stage from owner's point of view. Worth of operational strategy is evaluated using maximization of net present value (NPV) of 6-bus meshed and 14-bus radial microgrids which are assessed from optimal deployment their DERs with respect to optimal locations,...
Johne's disease (JD) is an incurable, chronic infectious disease prevalent in dairy herds throughout the US and the world. The substantial economic losses caused by JD have been well documented. However, information on the costs of controlling the disease is limited, yet necessary, if producers are to make sound decisions regarding JD management. The purpose of this paper is to describe a method for...
Solar PV Micro-Utility is the concept of Solar PV extension where power rather than the solar electric systems are offered to the rural poor. In this system, one will never be the owner of the system, but one can use the Solar PV system by paying a daily tariff. Several rural markets have already been electrified through Solar PV under the concept of PV Micro-Utility by Centre for Mass Education in...
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