Feasibility and Econometrics Assessment of Standalone and Hybrid RE Facilities for Rural Community Utilization and Embedded Generation in North-West, Nigeria

This study assessed the feasibility and economic viability of renewable energy resources for power generation at rural communities of six sites in North-West Nigeria. A specific electric load profile was developed to suite the rural communities made up of 200 homes, a school and health centre. The required load was analysed as 358 kWh per day, with 46 kW primary peak load and 20 kW deferrable peak load. The employed data obtained from the Nigeria Meteorological Department, were those of daily mean wind speeds, daily global solar radiation, sunshine hours, minimum and maximum air temperature, and minimum and maximum relative humidity for 24 years spanning 1987-2010. The assessment of the design that will optimally meet the daily load demand with LOLP of 0.01 was carried out by considering 3 standalone applications of PV, Wind and Diesel, and a hybrid design of Wind-PV. The outcome showed that the most economically viable alternative for power generation at the different locations in Gusau, Kaduna and Yelwa was the hybrid system while wind standalone suffices for the other sites. The values of LCOE for the both the hybrid and standalone wind system are competitive with grid electricit

Feasibility and Econometrics Assessment of Standalone and Hybrid RE Facilities for Rural Community Utilization and Embedded Generation in North-West, Nigeria

This study assessed the feasibility and economic viability of renewable energy resources for power generation at rural communities of six sites in North-West Nigeria. A specific electric load profile was developed to suite the rural communities made up of 200 homes, a school and health centre. The required load was analysed as 358 kWh per day, with 46 kW primary peak load and 20 kW deferrable peak load. The employed data obtained from the Nigeria Meteorological Department, were those of daily mean wind speeds, daily global solar radiation, sunshine hours, minimum and maximum air temperature, and minimum and maximum relative humidity for 24 years spanning 1987-2010. The assessment of the design that will optimally meet the daily load demand with LOLP of 0.01 was carried out by considering 3 standalone applications of PV, Wind and Diesel, and a hybrid design of Wind-PV. The outcome showed that the most economically viable alternative for power generation at the different locations in Gusau, Kaduna and Yelwa was the hybrid system while wind standalone suffices for the other sites. The values of LCOE for the both the hybrid and standalone wind system are competitive with grid electricit

Feasibility and Econometrics Assessment of Standalone and Hybrid RE Facilities for Rural Community Utilization and Embedded Generation in North-West, Nigeria

This study assessed the feasibility and economic viability of renewable energy resources for power generation at rural communities of six sites in North-West Nigeria. A specific electric load profile was developed to suite the rural communities made up of 200 homes, a school and health centre. The required load was analysed as 358 kWh per day, with 46 kW primary peak load and 20 kW deferrable peak load. The employed data obtained from the Nigeria Meteorological Department, were those of daily mean wind speeds, daily global solar radiation, sunshine hours, minimum and maximum air temperature, and minimum and maximum relative humidity for 24 years spanning 1987-2010. The assessment of the design that will optimally meet the daily load demand with LOLP of 0.01 was carried out by considering 3 standalone applications of PV, Wind and Diesel, and a hybrid design of Wind-PV. The outcome showed that the most economically viable alternative for power generation at the different locations in Gusau, Kaduna and Yelwa was the hybrid system while wind standalone suffices for the other sites. The values of LCOE for the both the hybrid and standalone wind system are competitive with grid electricit

State-of-the-art on evolution and reactivity

This report starts by, in Chapter 1, outlining aspects of querying and updating resources on the Web and on the Semantic Web, including the development of query and update languages to be carried out within the Rewerse project. From this outline, it becomes clear that several existing research areas and topics are of interest for this work in Rewerse. In the remainder of this report we further present state of the art surveys in a selection of such areas and topics. More precisely: in Chapter 2 we give an overview of logics for reasoning about state change and updates; Chapter 3 is devoted to briefly describing existing update languages for the Web, and also for updating logic programs; in Chapter 4 event-condition-action rules, both in the context of active database systems and in the context of semistructured data, are surveyed; in Chapter 5 we give an overview of some relevant rule-based agents frameworks

Biology and Impacts of Leech Infestation in Largemouth Bass (Micropterus Salmoides) in Back Bay, Virginia

Back Bay is an oligohaline coastal bay in Southeast Virginia, USA. The Oregon Inlet along the Outer Banks of North Carolina is the only significant salinity source to the Bay via the Pamlico and Currituck Sounds of North Carolina. Today Back Bay is considered a brackish ecosystem with salinity of 2004, leeches have been observed in the oral cavities of Largemouth Bass (Micropterus salmoides) in Back Bay. Leeches (Myzobdella lugubris) have previously been documented in the oral cavities of largemouth bass in the Currituck Sound. In 2009, the Virginia Department of Game and Inland Fisheries (VDGIF) conducted an experimental Largemouth Bass restocking effort in hopes of increasing the Largemouth Bass population. The stocking was deemed successful and as a result VDGIF continued to restock in 2012, 2013, and 2014. After four years of stocking Largemouth Bass, VDGIF has indicated the population has not stabilized in the system as judged by yearly community fish sampling in Back Bay. This is worrisome because there may be a factor that is preventing growth of the Largemouth Bass population, and this raises the issue of whether restocking of Largemouth Bass should be continued. The purpose of this study is to determine the biology and impacts of oral leech infestations on the Largemouth Bass. From this study, we intend to determine if the leeches are inflicting harm on the Largemouth Bass

Applying Formal Methods to Networking: Theory, Techniques and Applications

Despite its great importance, modern network infrastructure is remarkable for the lack of rigor in its engineering. The Internet which began as a research experiment was never designed to handle the users and applications it hosts today. The lack of formalization of the Internet architecture meant limited abstractions and modularity, especially for the control and management planes, thus requiring for every new need a new protocol built from scratch. This led to an unwieldy ossified Internet architecture resistant to any attempts at formal verification, and an Internet culture where expediency and pragmatism are favored over formal correctness. Fortunately, recent work in the space of clean slate Internet design---especially, the software defined networking (SDN) paradigm---offers the Internet community another chance to develop the right kind of architecture and abstractions. This has also led to a great resurgence in interest of applying formal methods to specification, verification, and synthesis of networking protocols and applications. In this paper, we present a self-contained tutorial of the formidable amount of work that has been done in formal methods, and present a survey of its applications to networking.Comment: 30 pages, submitted to IEEE Communications Surveys and Tutorial