scholarly journals Assessing Hydrokinetic Energy in the Mexican Caribbean: A Case Study in the Cozumel Channel

Energies ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4411
Author(s):  
Juan F. Bárcenas Graniel ◽  
Jassiel V. H. Fontes ◽  
Hector F. Gomez Garcia ◽  
Rodolfo Silva
Keyword(s):  
Simulated Data ◽  
Economic Assessment ◽  
Capacity Factor ◽  
Cost Ratio ◽  
Energy Potential ◽  
Hydrokinetic Energy ◽  
Cozumel Island ◽  
Cost Of Energy ◽  
Mexican Caribbean ◽  
Economic Analyses

This paper presents a techno-economic assessment of hydrokinetic energy of Cozumel Island, where ocean currents have been detected, but tourist activities are paramount. The main objective of this research is to identify devices that have been used to harvest hydrokinetic power elsewhere and perform an economic analysis as to their implementation in the Mexican Caribbean. First, the energy potential of the area was evaluated using simulated data available through the HYCOM consortium. Then, for four pre-commercial and commercial turbines, technical and economic analyses of their deployments were performed. Socio-environmental constraints were reviewed and discussed. Three optimal sites were identified, with an average annual hydrokinetic energy density of 3–6 MWh/m2-year. These sites meet the socio-environmental requirements for marine kinetic energy harvesting. Of the turbines considered in the analysis, the best energy price/cost ratio is that of SeaGen device, with a maximum theoretical energy extraction of 1319 MWh/year with a Capacity Factor of 12.5% and a Levelised Cost of Energy (LCOE) of 1148 USD/MWh. Using this device, but assuming a site-specific design that achieves at least 25% of Capacity Factor, 20-year useful life, and a discount rate of 0.125, the LCOE would be 685.6 USD/MWh. The approach presented here can be applied for techno-economic analyses of marine turbines in other regions.

Technical and Economic Assessment of a 10 MW Wind Farm at Pakphanang District in Nakhon Si Thammarat Province

2016 ◽  
Vol 839 ◽  
pp. 142-150 ◽  
Author(s):  
Jompob Waewsak ◽  
Chana Chancham ◽  
Somphol Chewamongkolkarn ◽  
Chuleerat Kongruang ◽  
Yves Gagnon
Keyword(s):  
Wind Farm ◽  
Net Present Value ◽  
Greenhouse Gas Emission ◽  
Fluid Dynamic ◽  
Economic Assessment ◽  
Capacity Factor ◽  
Cost Ratio ◽  
Wind Flow ◽  
Flow Modeling ◽  
Project Cost

This paper presents the technical and economic assessment of a 10 MW wind farm at Pakphanang district in Nakhon Si Thammarat province, southern Thailand. The microscale wind resource map within 10 km is developed based on 3 years recorded wind data at 120 m above ground level (agl) (2012-2014) along with computational fluid dynamic (CFD) wind flow modeling with resolution of 90 m. The 5 x 2.0 MW and 4 x 2.5 MW modeled wind farms are positioned along the shoreline with a position criteria of 5 times the rotor diameter between the turbines. The net annual energy production (AEP) and capacity factor (CF) with wake losses are analyzed. The economic analysis is done based on the current project cost and financial incentive (Adder). Results show that the annual mean speed at 120 m agl is 5.2 m/s. The net AEP and CF are 36.60 GWh/year and 41.78%, respectively with wake loss of 0.40%. Under project cost of 75 million THB/MW and 70% debt ratio and Thailand Board of Investment (BOI) tax exemption promotion, the benefit cost ratio is 1.04, the net present value is 65.96 million THB, the financial internal rate of return is 17.70% and the payback period is 4 years. Finally, a 10 MW wind power project could avoid greenhouse gas emission of 19,764 tons CO2eq per year.Keywords: Wind Energy, Wind Farm, Capacity Factor, Wind Flow Modeling, Project Analysis

Wind Energy Potential in Jordan: Analysis of the First Large-Scale Wind Farm and Techno-Economic Assessment of Potential Farms

2020 ◽  
Vol 143 (1) ◽  
Author(s):  
Suhil Kiwan ◽  
Elyasa Al-Gharibeh ◽  
Emad Abu-Lihia
Keyword(s):  
Wind Energy ◽  
Large Scale ◽  
Wind Farm ◽  
Economic Assessment ◽  
Capacity Factor ◽  
First Year ◽  
Energy Potential ◽  
Levelized Cost Of Electricity ◽  
Total Capacity ◽  
The Cost

Abstract We research the investment potential of wind energy in Jordan. The capacity factor of the first large-scale wind farm in the country, Tafila Wind Farm, was found to be 33.1%, based on actual energy production during its first year of operation. The best performing turbine in the farm achieved a capacity factor of 39.1%. Other eight sites, which are expected to have such capacity factors were subjected to techno-economic investigation utilizing 52 different turbine models of nameplate capacities range from 1.0 to 5.0 MW. A capacity factor higher than 25.0% can be achieved at all the studied sites. The average levelized cost of electricity of the 52 turbines at the eight sites is 0.0708 $/kWh, and the cost ranges from 0.0452 to 0.1108 $/kWh. A proposed 80 MW farm at every location results in a total capacity of 640 MW and an annual estimated energy generation of 1545.0–2076.0 GWh, around 7.0–9.0% of the country's projected electricity demand in 2020.

Assessment of bioenergy development potential in agricultural enterprises

2020 ◽  
pp. 165-171
Author(s):  
Iryna Hryhoruk
Keyword(s):  
Renewable Energy ◽  
Large Scale ◽  
Agricultural Waste ◽  
General Structure ◽  
Geographical Location ◽  
Economic Assessment ◽  
Energy Resources ◽  
Industrial Complex ◽  
Renewable Energy Resources ◽  
Energy Potential

Exhaustion of traditional energy resources, their uneven geographical location, and catastrophic changes in the environment necessitate the transition to renewable energy resources. Moreover, Ukraine's economy is critically dependent on energy exports, and in some cases, the dependence is not only economic but also political, which in itself poses a threat to national security. One of the ways to solve this problem is the large-scale introduction and use of renewable energy resources, bioenergy in particular. The article summarizes and offers methods for assessing the energy potential of agriculture. In our country, a significant amount of biomass is produced every year, which remains unused. A significant part is disposed of due to incineration, which significantly harms the environment and does not allow earning additional funds. It is investigated that the bioenergy potential of agriculture depends on the geographical distribution and varies in each region of Ukraine. Studies have shown that as of 2019 the smallest share in the total amount of conventional fuel that can be obtained from agricultural waste and products suitable for energy production accounts for Zakarpattya region - 172.5 thousand tons. (0.5% of the total) and Chernivtsi region - 291.3 thousand tons. (0.9%). Poltava region has the greatest potential - 2652.2 thousand tons. (7.8%) and Vinnytsia - 2623.7 thousand tons. (7.7%). It should be noted that the use of the energy potential of biomass in Ukraine can be called unsatisfactory. The share of biomass in the provision of primary energy consumption is very small. For bioenergy to occupy its niche in the general structure of the agro-industrial complex, it is necessary to develop mechanisms for its stimulation. In addition, an effective strategy for the development of the bioenergy sector of agriculture is needed. The article considers the general energy potential of agriculture, its indicative structure. The analysis is also made in terms of areas. In addition, an economic assessment of the possible use of existing potential is identified.

scholarly journals Techno-Economic Assessment of Coal-Fired Power Unit Decarbonization Retrofit with KP-FHR Small Modular Reactors

Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2557
Author(s):  
Łukasz Bartela ◽  
Paweł Gładysz ◽  
Charalampos Andreades ◽  
Staffan Qvist ◽  
Janusz Zdeb
Keyword(s):  
Net Present Value ◽  
Economic Assessment ◽  
Plant Design ◽  
Term Operation ◽  
Small Modular Reactors ◽  
Greenfield Investments ◽  
Unit Design ◽  
The Difference ◽  
Economic Analyses ◽  
The Eu

The near and mid-term future of the existing Polish coal-fired power fleet is uncertain. The longer-term operation of unabated coal power is incompatible with climate policy and is economically challenging because of the increasing price of CO2 emission allowances in the EU. The results of the techno-economic analysis presented in this paper indicate that the retrofit of existing coal-fired units, by means of replacing coal-fired boilers with small modular reactors, may be an interesting option for the Polish energy sector. It has been shown that the retrofit can reduce the costs in relation to greenfield investments by as much as 35%. This analysis focuses on the repowering of a 460 MW supercritical coal-fired unit based on the Łagisza power plant design with high temperature small modular nuclear reactors based on the 320 MWth unit design by Kairos Power. The technical analyses did not show any major difficulties in integrating. The economic analyses show that the proposed retrofits can be economically justified, and, in this respect, they are more advantageous than greenfield investments. For the base economic scenario, the difference in NPV (Net Present Value) is more favorable for the retrofit by 556.9 M€ and the discounted payback period for this pathway is 10 years.

scholarly journals Hydrokinetic Energy Opportunity for Rural Electrification in Nigeria

2018 ◽  
Vol 7 (2) ◽  
pp. 183-190 ◽  
Author(s):  
Ogunjuyigbe Ayodeji Samson Olatunji ◽  
Ayodele Temitope Raphael ◽  
Ibitoye Tahir Yomi
Keyword(s):  
Rural Communities ◽  
Energy Demand ◽  
Optimal Investment ◽  
Rural Electrification ◽  
Economic Activities ◽  
Energy Potential ◽  
Ongoing Research ◽  
Hydrokinetic Energy ◽  
Potential Site

This paper is part of the ongoing research by the Power, Energy, Machine and Drive (PEMD) research group of the Electrical Engineering Department of the University of Ibadan. The paper presents various sites with possible hydrokinetic energy potential in Nigeria with the aim of quantifying their energy potential for rural electrification application. Overview of hydrokinetic technology is also presented with the view of highlighting the opportunities and the challenges of the technology for rural electrification. A case study of using hydrokinetic turbine technology in meeting the energy demand of a proposed civic center in a remote community is demonstrated.  Some of the key findings revealed that Nigeria has many untapped hydrokinetic potential site and if adequately harnessed can improve the energy poverty and boost economic activities especially in the isolated and remote rural communities, where adequate river water resource is available. The total estimated untapped hydrokinetic energy potential in Nigeria is 111.15MW with the Northern part of the country having 68.18MW while the Southern part has 42.97MW. The case study shows that harnessing hydrokinetic energy of potential site is promising for rural electrification. This paper is important as it will serve as an initial requirement for optimal investment in hydrokinetic power development in Nigeria.Article History: Received November 16th 2017; Received in revised form April 7th 2018; Accepted April 15th 2018; Available onlineHow to Cite This Article: Olatunji, O.A.S., Raphael, A.T. and Yomi, I.T. (2018) Hydrokinetic Energy Opportunity for Rural Electrification in Nigeria. Int. Journal of Renewable Energy Development, 7(2), 183-190.https://doi.org/10.14710/ijred.7.2.183-190

scholarly journals Economic Assessment for Harvesting Artisanal Giant Freshwater Prawn from the Sundarban Mangrove Ecosystem in Bangladesh

2019 ◽  
Author(s):  
Biplab Kumar Shaha ◽  
Md. Mahmudul Alam ◽  
H. M. Rakibul Islam
Keyword(s):  
Operating Cost ◽  
Economic Assessment ◽  
Mangrove Ecosystem ◽  
Catch Rate ◽  
Freshwater Prawn ◽  
Current Status ◽  
Small Scale ◽  
Fixed Cost ◽  
Cost Ratio ◽  
Giant Freshwater Prawn

Harvesting Giant Freshwater Prawn, Golda (Macrobrachium rosenbergii de Man 1879) in the Sundarnbans mangrove forest plays an important role in the economy of the country as well as the livelihood of local community. The study focused the economic assessment of small-scale artisanal Golda fishery. Overall the Hookline gear showed the best performance in terms of economic return. However, it was found to withstand a shock from 20% decrease in market prices or 30% fall in catch rate in terms of Return on investment, payback period and Benefit-cost ratio. Operating cost and fixed cost for Hookline fishery was the lowest and Khathijal was the highest. No significant variation (P<0.05) observed in the mean catch rate per trip boat-1 among the gears studied. Total revenue earned after completion a trip varied considerably between BDT 1,307 to 1,562. Yearly, total net revenue reached at the maximum by Hookline (BDT 38,506), followed by Chandijal (BDT 38,377) and the minimum by Khalpata (BDT 33,885). The findings of this study are supposed to be helpful for policy makers in improving the current status of Golda fishery and relevant human livelihood as well as conserving the Sundarbans Mangrove Ecosystem.

scholarly journals Techno-Economic Simulation of a Geothermal Energy Generation System at the Machin Volcano in Colombia

2020 ◽  
Author(s):  
Hernando Enrique Rodriguez Pantano ◽  
Valentina Betancourt ◽  
Juan S. Solís-Chaves ◽  
C. M. Rocha-Osorio
Keyword(s):  
Geothermal Energy ◽  
Energy Generation ◽  
Generation System ◽  
Energy Potential ◽  
Public And Private ◽  
Mountain Ranges ◽  
Cost Of Energy ◽  
Geothermal Potential ◽  
Economic Simulation ◽  
Private Investors

Colombian geothermal potential for power generation is interesting due to the presence of the three Andean mountain ranges and the existence of active volcanoes in junction with springs and underground reservoirs with the consequent closeness of available hydrothermal water-wells. The Machin volcano is a small mountain placed in the middle of the country, that has a considerable geothermal potential with wells in a temperature range of 160 to 260C. For that reason, a techno-economic simulation for a Geothermal Energy Generation System is proposed in this paper, using for that the System Advisor Model software. The purpose of this research is to present a more encouraging picture for public and private investors interested in exploiting this energy potential in Colombia. Simulation results include technical and economic aspects as annual and monthly energy production, geothermal resource monthly average temperature, and the Time Of Delivery Factors are also considered. Some tables with system configuration, plant and pump costs, Capacity Factor, and real and nominal Levelized Cost of Energy are also shown.

scholarly journals Financial and economic aspects of bioenergy development in the context of providing energy independence of Ukraine

2017 ◽  
Vol 15 (4) ◽  
pp. 243-253
Author(s):  
Mark Myronenko ◽  
Olena Polova ◽  
Anatolii Prylutskyi ◽  
Olga Smoglo
Keyword(s):  
Economic Development ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Development Program ◽  
Economic Assessment ◽  
Energy Resources ◽  
Partial Replacement ◽  
Foreign Direct Investments ◽  
Energy Potential ◽  
Energy Independence

The article deals with financial and economic meaning of bioenergy as an important component of the country’s energy security. The problem of transition to renewable energy sources, in particular biofuels, was investigated. The relevance of research is that biofuels can fully replace traditional energy resources, increase the level of economic efficiency of production and competitiveness of national economy, as well as reduce amount of harmful emissions into the environment. The purpose of research is to study and develop theoretical and practical principles of financial and economic development of bioenergy and its role in ensuring energy independence of Ukraine. In the context of financial and economic crisis and political instability, the development of bioenergy industry is of priority in dealing with main social and economic problems. One of the main aspects of bioenergy development is states’ concern and use of targeted state funding. Moreover, other perspective ways to implement bioenergy technologies in Ukraine are public private partnership and attraction of foreign direct investments. Economic assessment of different ways of full or partial replacement of natural gas has shown that they can be supplied with biomass, while the total capacity of introduced objects according to the bioenergy development program can save natural energy resources. According to the formula of the method of average medium, the forecast of optimistic and pessimistic scenario of energy potential development is developed. Energy independence of Ukraine can be ensured through effective implementation of alternative energy with full state support, which will lead to acceleration of economic development of the territories, increasing level of life of people and environmental security of the country.

Estimating the potential of wind energy resources using Weibull parameters: A case study of the coastline region of Dar es Salaam, Tanzania

2021 ◽  
Vol 11 (1) ◽  
pp. 1093-1104
Author(s):  
Enock Michael ◽  
Dominicus Danardono Dwi Prija Tjahjana ◽  
Aditya Rio Prabowo
Keyword(s):  
Parameter Estimation ◽  
Wind Energy ◽  
Wind Turbine ◽  
Cost Effective ◽  
Dar Es Salaam ◽  
Capacity Factor ◽  
Energy Potential ◽  
Weibull Parameters ◽  
Distribution Parameter Estimation ◽  
Annual Capacity

Abstract This study aimed to compare the graphical method (GM) and standard deviation method (SDM), based on analyses and efficient Weibull parameters by estimating future wind energy potential in the coastline region of Dar es Salaam, Tanzania. Hence, the conclusion from the numerical method comparisons will also determine suitable wind turbines that are cost-effective for the study location. The wind speed data for this study were collected by the Tanzania Meteorological Authority Dar es Salaam station over the period of 2017 to 2019. The two numerical methods introduced in this study were both found to be appropriate for Weibull distribution parameter estimation in the study area. However, the SDM gave a higher value of the Weibull parameter estimation than the GM. Furthermore, the five selected commercial wind turbine models that were simulated in terms of performance were based on a capacity factor using the SDM and were both over 25% the recommended capacity factor value. The Polaris P50-500 commercial wind turbine is recommend as a suitable wind turbine to be installed in the study area due to its maximum annual capacity factor value over 3 years.

scholarly journals Influence of the ENSO and Monsoonal Season on Long-Term Wind Energy Potential in Malaysia

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 2965 ◽  
Author(s):  
Aliashim Albani ◽  
Mohd Ibrahim ◽  
Kim Yong
Keyword(s):  
Wind Energy ◽  
Wind Turbine ◽  
El Nino ◽  
Southwest Monsoon ◽  
Capacity Factor ◽  
Wind Data ◽  
Northeast Monsoon ◽  
Energy Potential ◽  
Wind Energy Potential

This paper assesses the long-term wind energy potential at three selected sites, namely Mersing and Kijal on the east coast of peninsular Malaysia and Kudat in Sabah. The influence of the El Niño-Southern Oscillation on reanalysis and meteorological wind data was assessed using the dimensionless median absolute deviation and wavelet coherency analysis. It was found that the wind strength increases during La Niña events and decreases during El Niño events. Linear sectoral regression was used to predict the long-term wind speed based on the 35 years of extended Climate Forecast System Reanalysis data and 10 years of meteorological wind data. The long-term monthly energy production was computed based on the 1.5 MW Goldwind wind turbine power curve. The measured wind data were extrapolated to the selected wind turbine default hub height (70 m.a.s.l) by using the site-specific power law indexed. The results showed that the capacity factor is higher during the Northeast monsoon (21.32%) compared to the Southwest monsoon season (3.71%) in Mersing. Moreover, the capacity factor in Kijal is also higher during the Northeast monsoon (10.66%) than during the Southwest monsoon (5.19%). However, in Kudat the capacity factor during the Southwest monsoon (36.42%) is higher compared to the Northeast monsoon (24.61%). This is due to the tail-effect of tropical storms that occur during this season in the South China Sea and Pacific Ocean.

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