The Status of the Development of Wind Energy in Nigeria

The advancement of wind energy farms in the developed part of the world has dramatically reduced the cost of wind energy turbine systems down to a competitive price and has contributed to a reduction in global warming, which affects the worldwide population. The renewed interest in a sustainable, avoidable, and reliable energy system has contributed to the actions of the federal government of Nigeria regarding renewable energy systems. Many projects have been completed using solar energy in rural communities as well as with government higher institutions of learning, while little attention has been on wind energy, except for the 10 MW land base in a village in the Kastina State. In this study, the stages of development were itemized in regard to the assessment, economic analysis, and hybrid system of wind energy in Nigeria. The available reported wind speed were studied at 10, 20, 40, 60, 80, 100, and 120 m. Recommendations were highlighted to enhance wind energy research, development, and its application.

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Methodology for optimal design and control of wind energy system based on simplifying assumptions

Wind Engineering ◽

10.1177/0309524x211066772 ◽

2021 ◽

pp. 0309524X2110667

Author(s):

Souhir Tounsi

Keyword(s):

Wind Energy ◽

Energy System ◽

Chain Structure ◽

Control Algorithms ◽

Simulation Environment ◽

Wind Energy Generation ◽

Wind Energy System ◽

Simplifying Assumptions ◽

The Cost ◽

And Control

The study presented in this paper concerns the development of a new methodology for design and controlling a wind energy generation chain. This methodology is based on combined Analytical-Finite Element-Experimental method. This type of converter chosen is an AC-DC inverter with IGBTs to improve the robustness of the power chain structure. It offers a reduction of the cost of the power chain and the improvement of the performances of the global studied system, as the control at power factor equal to unity and providing an electromagnetic torque which is added to the useful torque in order to extract the maximal energy. The control algorithms permit to regulate Le charging voltage and current in their rated values considered as optimal battery charging voltage and current. The global model of the power chain is implemented under the Matlab-Sumilink simulation environment for performance and efficiency analysis.

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Size Effects in DAWT Innovative Wind Energy System Design

Journal of Solar Energy Engineering ◽

10.1115/1.3266399 ◽

1983 ◽

Vol 105 (4) ◽

pp. 401-407 ◽

Cited By ~ 3

Author(s):

K. M. Foreman

Keyword(s):

Wind Energy ◽

Weight Ratio ◽

Energy System ◽

Power Ratio ◽

Direct Production ◽

Wind Energy Conversion ◽

Reinforced Plastics ◽

Wind Energy System ◽

The One ◽

The Cost

By means of a case study, we examine the effect of size on the estimated weight and cost of an advanced wind energy conversion system, the diffuser-augmented wind turbine (DAWT) concept. Preliminary designs are described for three DAWT sizes (ratings) in each of three construction approaches: all-aluminum, ferrocement, and a hybrid fiberglass reinforced plastics (FRP) diffuser shell on an aluminum frame. Common design criteria are employed in designs for these three materials. Installed cost estimates are generated by professional industrial estimators. Excluding the foundation, it is concluded that for geometrically similar DAWTs the weight-to-power ratio varies approximately as the rotor diameter to the one third power, over a 4 to 1 change in rotor diameter, 2.7–11 m (9–36 ft). Futhermore, because the total direct production cost of these various DAWT units and designs proves to change by about D1.5, the cost-to-power ratio is approximately proportional to D−.5 and the cost/weight ratio varies as D−1/6. Therefore, for the investigated DAWT unit ratings between 5 and 200 kW, the larger units appear increasingly to become more efficient structures with apparently lower specific costs (dollars per kW) for each of three candidate construction approaches.

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Research Results for the Tornado Wind Energy System: Analysis and Conclusions

Journal of Solar Energy Engineering ◽

10.1115/1.3267659 ◽

1985 ◽

Vol 107 (1) ◽

pp. 78-87

Author(s):

E. W. Jacobs

Keyword(s):

Wind Energy ◽

System Analysis ◽

Energy System ◽

Power Coefficient ◽

Research Results ◽

Air Supply ◽

Cost Of Energy ◽

Energy System Analysis ◽

Wind Energy System ◽

The Cost

The Tornado Wind Energy System (TWES) concept utilizes a wind-driven vortex confined by a hollow tower to create a low-pressure core intended to serve as a turbine exhaust reservoir. The turbine inlet flow is provided by a separate ram air supply. Numerous experimental and analytical research efforts have investigated the potential of the TWES as a wind energy conversion system (WECS). The present paper summarizes and analyzes much of the research to date on the TWES. A simplified cost analysis incorporating these research results is also included. Based on these analyses, the TWES does not show any significant promise of improving on either the performance or the cost of energy attainable by conventional WECS. The prospects for achieving either a system power coefficient above 0.20 or a cost of energy less than $0.50/kWh (1979 dollars) appear to be poor.

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The District Heating in the Context of the Active Consumers Development in Smart Energy Systems

SCIENTIFIC JOURNAL “ACADEMIA ARCHITECTURE AND CONSTRUCTION” ◽

10.22337/2077-9038-2018-1-78-87 ◽

2018 ◽

pp. 78-87

Author(s):

Vladimir K. Averyanov ◽

Aleksey A. Melezhik ◽

Alexander S. Gorshkov ◽

Yury V. Yuferev

Keyword(s):

Electric Energy ◽

District Heating ◽

Energy Systems ◽

Energy System ◽

Smart Energy Systems ◽

Regulatory Impact ◽

The Status ◽

Model Of Management ◽

The Cost ◽

Community Facilities

The paper defines the main factors of the smart energy systems that influence on the district heating. Noted increase in the regulatory impact of electric energy system on the district heating and increase in roles of the distribution and consumption of thermal energy. Urban population and other consumers of energy become equal partners of the utilities and acquire the status of "active" consumers. The heating supply companies need to develop a new model of management of heating regimes with dynamic synchronization with energy system and "active" consumers. One of the most important conditions of the achievement of the cost reduction, reliability and quality increase in community facilities is active consumer's behavior.

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Some Thoughts on Energy Problem and Sustainable Energy Development

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.869-870.504 ◽

2013 ◽

Vol 869-870 ◽

pp. 504-508

Author(s):

Hong Yan Cheng ◽

Yu Long Zhang ◽

Xin Zhang ◽

Yang Shi

Keyword(s):

Development Strategy ◽

Energy Demand ◽

Sustainable Energy ◽

Energy System ◽

Energy Development ◽

Status Quo ◽

Energy Problem ◽

Energy Research ◽

The Social ◽

The Status

With the development of the social and economy, China faces the increasingly serious energy crisis and more and more depends on energy imports. In this paper, the energy demand crisis is analyzed, and the status of the energy research and project status quo policy was discussed. At last, this paper gives the ways and means of the resolution of the crisis of energy demand, puts forward the sustainable energy development strategy, and builds the energy system and the relevant policies to alleviate the crisis of energy demand in China to a certain extent.

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Sustaining 99.99% Reliability for US Electric Grid by using Renewable Energy Systems Complexity as a Benefit

10.21203/rs.3.rs-961374/v1 ◽

2021 ◽

Author(s):

Abigail Mechtenberg ◽

Henri Francois ◽

Anne Stratman ◽

Robert Stiller ◽

Brady McLaughlin ◽

...

Keyword(s):

Renewable Energy ◽

Treatment Plant ◽

Energy Systems ◽

Population Data ◽

Energy System ◽

Status Quo ◽

Middle Income ◽

Renewable Energy Systems ◽

Middle Income Countries ◽

The Status

Abstract Renewable energy system designers in status-quo and high-income countries (HICs) work to improve the environmental and societal impacts of energy systems by using increasingly complex technologies to predict the future. However, low-to-middle-income countries (LMICs) focus on innovative solutions by turning complexity into an asset. This paper presents the results from four optimization objectives, presented as scenarios with data from EIA utility regions, and with powerloads scaled using population data, solar radiance, wind speed, and wastewater treatment plant (WWTP) capabilities for biogas turbines. This allowed for the complexity of renewable energy systems to be used as a benefit instead of a deficit. For many US cities, an emerging LMIC-based optimization pathway can make possible energy system designs that increase reliability by including backup biogas generators. Here we show that the HIC-based approach is optimal for some cities; for others the status-quo pathway; for many, surprisingly, the LMIC approach is optimal.

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Pathways ahead for New Zealand hill country farming

Journal of New Zealand Grasslands ◽

10.33584/jnzg.2016.78.522 ◽

2016 ◽

Vol 78 ◽

pp. 73-82 ◽

Cited By ~ 1

Author(s):

F.G. Scrimgeour

Keyword(s):

New Zealand ◽

Rural Communities ◽

New Technologies ◽

Service Providers ◽

Farming Systems ◽

Hill Country ◽

The Status ◽

And Performance ◽

Hill Farming ◽

The Hill

This paper provides a stocktake of the status of hill country farming in New Zealand and addresses the challenges which will determine its future state and performance. It arises out of the Hill Country Symposium, held in Rotorua, New Zealand, 12-13 April 2016. This paper surveys people, policy, business and change, farming systems for hill country, soil nutrients and the environment, plants for hill country, animals, animal feeding and productivity, and strategies for achieving sustainable outcomes in the hill country. This paper concludes by identifying approaches to: support current and future hill country farmers and service providers, to effectively and efficiently deal with change; link hill farming businesses to effective value chains and new markets to achieve sufficient and stable profitability; reward farmers for the careful management of natural resources on their farm; ensure that new technologies which improve the efficient use of input resources are developed; and strategies to achieve vibrant rural communities which strengthen hill country farming businesses and their service providers. Keywords: farming systems, hill country, people, policy, productivity, profitability, sustainability

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