scholarly journals An Economic Analysis of An Innovative Floating Offshore Wind Platform Built with Concrete: The SATH® Platform

2020 ◽  
Vol 10 (11) ◽  
pp. 3678
Author(s):  
Eugenio Baita-Saavedra ◽  
David Cordal-Iglesias ◽  
Almudena Filgueira-Vizoso ◽  
Àlex Morató ◽  
Isabel Lamas-Galdo ◽  
...  
Keyword(s):  
Economic Analysis ◽  
Capital Cost ◽  
Economic Feasibility ◽  
Offshore Wind ◽  
New Approach ◽  
Capital Costs ◽  
Energy Technologies ◽  
Wind Structure ◽  
Main Material

The goal of this work is to carry out an economic analysis of a novel floating offshore wind structure, of which the main material is concrete: the SATH® platform. It takes a step forward in floating marine wind energy research, in which traditional platforms are mainly composed of steel. The technique to calculate the costs of the platform and the economic parameters to decide if the farm is economically feasible are explained in the paper. This case study analyzes a possible farm of 500 MW located in Portugal and several scenarios considering different electric tariffs and capital costs (Scenario 1: electric tariff of 50 €/MWh and 6% of capital cost; Scenario 2: electric tariff of 50 €/MWh and 8% of capital cost; Scenario 3: electric tariff of 150 €/MWh and 6% of capital cost; Scenario 4: electric tariff of 150 €/MWh and 8% of capital cost). Results show the economic feasibility of a farm with the characteristics of Scenarios 3 and 4. This work is significant in order to provide a new approach to analyzing traditional floating offshore wind structures, which can represent a path towards the future of floating offshore renewable energy technologies.

scholarly journals Framework for Development of an Economic Analysis Tool for Floating Concrete Offshore Wind Platforms

2020 ◽  
Vol 8 (12) ◽  
pp. 958
Author(s):  
David Cordal-Iglesias ◽  
Almudena Filgueira-Vizoso ◽  
Eugenio Baita-Saavedra ◽  
Manuel Ángel Graña-López ◽  
Laura Castro-Santos
Keyword(s):  
Economic Analysis ◽  
Net Present Value ◽  
Offshore Wind ◽  
Manufacturing Cost ◽  
Analysis Tool ◽  
Cost Of Energy ◽  
Floating Platforms ◽  
Beta Version ◽  
Installation Cost

The objective of this work is to establish a framework for the development of an economic analysis tool for floating offshore wind platforms built in concrete. The operation and usefulness of the beta version of a software, called Arcwind, is explained. It calculates the main economic aspects of offshore wind platforms built in concrete considering different locations in the European Atlantic Arc. This software allows the user to select different input parameters such as: the type of platform, the installation area of the farm, its specific location and in this way create different analysis scenarios. This paper analyzes the case study to install TELWIND® offshore concrete floating platforms in the Canary Islands, in Spain. The software provides data on the main economic parameters of the farm, such as Levelized Cost Of Energy (LCOE), Net Present Value (NPV), Internal Rate of Return (IRR), Pay-Back Period (PBP), as well as the main costs: cost of conception and definition, cost of design and development, cost of manufacturing, cost of installation, cost of operation and cost of dismantling. Using these parameters, a first analysis of the viability of this type of floating technology built on concrete is shown.

scholarly journals Techno-Economic Analysis of Producing Glacial Acetic Acid from Poplar Biomass via Bioconversion

Molecules ◽  
2020 ◽  
Vol 25 (18) ◽  
pp. 4328
Author(s):  
Rodrigo Morales-Vera ◽  
Jordan Crawford ◽  
Chang Dou ◽  
Renata Bura ◽  
Rick Gustafson
Keyword(s):  
Acetic Acid ◽  
Enzymatic Hydrolysis ◽  
Economic Analysis ◽  
Ethyl Acetate ◽  
Glacial Acetic Acid ◽  
Commercial Production ◽  
Economic Feasibility ◽  
Distillation Columns ◽  
Capital Costs ◽  
Economical Process

Most of the current commercial production of glacial acetic acid (GAA) is by petrochemical routes, primarily methanol carbonylation. GAA is an intermediate in the production of plastics, textiles, dyes, and paints. GAA production from biomass might be an economically viable and sustainable alternative to petroleum-derived routes. Separation of acetic acid from water is a major expense and requires considerable energy. This study evaluates and compares the technical and economic feasibility of GAA production via bioconversion using either ethyl acetate or alamine in diisobutylkerosene (DIBK) as organic solvents for purification. Models of a GAA biorefinery with a production of 120,650 tons/year were simulated in Aspen software. This biorefinery follows the path of pretreatment, enzymatic hydrolysis, acetogen fermentation, and acid purification. Estimated capital costs for different scenarios ranged from USD 186 to 245 million. Recovery of GGA using alamine/DIBK was a more economical process and consumed 64% less energy, due to lower steam demand in the recovery distillation columns. The estimated average minimum selling prices of GGA were USD 756 and 877/ton for alamine/DIBK and ethyl acetate scenarios, respectively. This work establishes a feasible and sustainable approach to produce GGA from poplar biomass via fermentation.

scholarly journals Economic Analysis for Investment of Public Sector’s Automated Container Terminal: Korean Case Study

2021 ◽  
Vol 9 (5) ◽  
pp. 459
Author(s):  
Yohan An ◽  
Namkyu Park
Keyword(s):  
Economic Analysis ◽  
Net Present Value ◽  
Container Terminal ◽  
Economic Feasibility ◽  
Timely Manner ◽  
The Public ◽  
Port Facilities ◽  
Automated Container Terminal ◽  
The Social

The purpose of this case study is to conduct an economic analysis to calculate the proper terminal capacity of automated container terminal (ACT) investment from the perspective of the public sector. As a key element of smart port, the ACT is an important terminal operating facility for import/export and transshipment cargo between countries and must have facilities with sufficient capacity to load/unload export/import cargo in a timely manner according to the user’s request. Recently, the method of calculating the capacity of seaport infrastructure is changing from the method of applying the maximum capacity to the method of applying the proper capacity. Therefore, it is desirable to expand port facilities by investigating proper capacity rather than expanding port facilities based on the maximum performance. This study is a case study focusing on the new port of Busan introducing the ACT. From the perspective of national fiscal income and national economy from the ACT investment, this study determines the proper terminal capacity for each berth. As a result of economic analysis, the break-even terminal capacity to secure economic feasibility is from 544,272TEU of the nine berths to 600,138TEU of two berths applying a 2.96% discount ratio. In a sensitivity analysis considering the social discount rate and the change in the size of berths, the net present value has a positive value from a minimum of 530,000 TEU (nine berths with 1.96% social discount ratio) to a maximum of 620,000 TEU (three berths with 3.46% social discount ratio).

scholarly journals The decarbonisation of Galicia using renewable marine energy

2021 ◽  
Vol 19 ◽  
pp. 115-120
Author(s):  
L. Castro-Santos ◽  
◽  
A. Filgueira-Vizoso ◽  
Keyword(s):  
Renewable Energy ◽  
Wind Energy ◽  
Wave Energy ◽  
Economic Feasibility ◽  
Offshore Wind ◽  
Offshore Wind Energy ◽  
Renewable Energy Technologies ◽  
Energy Technologies ◽  
Marine Energy ◽  
Study Results

The objective of this paper is to examine the importance of independent arrays in the offshore renewable energy farms. In this context, several scenarios have been contemplated for a floating offshore renewable energy farm: a farm only using floating wave energy; a farm only using floating offshore wind energy; and a farm composed by floating wave energy and floating offshore wind energy installed in independent arrays. The article proposes a method to calculate the main economic parameters and decide their economic feasibility. A hypothetic offshore renewable energy farm located in the Galicia region (Spain) has been studied as case of study. Results show which of the scenarios has the best economic results. This method is worthwhile to compare different floating offshore renewable energy technologies in economic terms and help in the decision making of this new emerging sector that can help to rebuild Europe in the post-pandemic period.

scholarly journals Markov Chain and Techno-Economic Analysis to Identify the Commercial Potential of New Technology: A Case Study of Motorcycle in Surakarta, Indonesia

2018 ◽  
Author(s):  
Wahyudi Sutopo ◽  
Indah Kurniyati ◽  
Roni Zakaria
Keyword(s):  
Markov Chain ◽  
Economic Analysis ◽  
Market Share ◽  
New Technology ◽  
Lithium Ion ◽  
Economic Feasibility ◽  
Commercial Potential ◽  
Markov Chain Method ◽  
Technology Market

LiFePO4 (LFP) or Lithium-ion battery with its advantages compared to common current motorcycle battery is an appropriate alternative in substituting wet and dry cell battery. Huge amount of demand of motorcycle along with the battery in Indonesia also make it an interesting product for business. In order to assess the commercial potential for such a new technology, market share needs to be estimated as well as the techno-economic feasibility. Hence, market share prediction using the residents of Surakarta Region and techno-economic analysis using NPV, IRR and PBP indicators have been conducted in this study. Calculation using markov chain method shows that LFP battery tends to dominate the market after certain period. Techno-economic analysis also figures out that the commercialization is feasible in three conditions - first mover, even with market leader and equilibrium point. Therefore, there is a great commercial potential for LFP battery especially in Indonesia.

scholarly journals Economic Feasibility of Floating Offshore Wind Farms in the North of Spain

2020 ◽  
Vol 8 (1) ◽  
pp. 58 ◽  
Author(s):  
Laura Castro-Santos ◽  
A. Rute Bento ◽  
Dina Silva ◽  
Nadia Salvação ◽  
C. Guedes Soares
Keyword(s):  
Wind Farm ◽  
Net Present Value ◽  
Wind Farms ◽  
Economic Feasibility ◽  
Offshore Wind ◽  
Offshore Wind Farms ◽  
The North ◽  
Wind Structure ◽  
Cost Of Energy ◽  
North Of Spain

This paper assesses the economic feasibility of offshore wind farms installed in deep waters considering their internal rate of return (IRR), net present value (NPV), and levelized cost of energy (LCOE). The method proposed has three phases: geographic phase, economic phase, and restrictions phase. The purpose of the geographic step is to obtain the input values, which will be used in the economic phase. Then, the economic parameters are calculated considering the inputs provided previously. Finally, the bathymetric restriction is added to the economic maps. The case study focused on the Cantabric and North-Atlantic coasts of Spain, areas that have not been studied previously in economic terms regarding floating offshore wind technology. Moreover, several alternatives have been considered, taking into account the type of floating offshore wind structure and the electric tariff. Results indicate which is the best floating offshore wind structure with respect to LCOE, IRR, and NPV, and where is the best location for the connection of a floating offshore wind farm in the region selected.

scholarly journals Energy Self-Sufficiency Aiming for Sustainable Wastewater Systems: Are All Options Being Explored?

2021 ◽  
Vol 13 (10) ◽  
pp. 5537
Author(s):  
Rosa M. Llácer-Iglesias ◽  
P. Amparo López-Jiménez ◽  
Modesto Pérez-Sánchez
Keyword(s):  
Wastewater Treatment Plants ◽  
Economic Feasibility ◽  
Policy Makers ◽  
New Approach ◽  
Sustainable Systems ◽  
Energy Technologies ◽  
Efficiency Measures ◽  
Self Sufficiency ◽  
Wastewater Systems ◽  
New Perspective

In upcoming years, water demand is expected to boost worldwide, and with that, wastewater generation and the required energy for treatment. Provided that efficiency measures should be implemented at first instance, developments of renewable energy technologies are needed to improve sustainability at wastewater treatment plants (WWTPs). Based on theoretical analyses of literature data, this article presents a novel perspective of the role that hydropower could play in that energy framework. This research applied a new approach compared to previous studies, considering the introduction of sustainability aspects in the decision-making process, other than economic feasibility. With that aim, a broad search of real case studies was conducted, and suitable Key Performance Indicators based on the energy self-sufficiency concept were selected and applied to the identified cases. The findings suggest that there is not a rule of thumb to determine feasibility for hydropower installation and this technology might deserve more attention. This new perspective can help to raise awareness among policy makers, decision managers, or plant operators, of the possibilities hydropower could offer to the wastewater industry in the pathway towards more sustainable systems.

Economic Analysis of Offshore Wind Farms: a Brazilian Case Study

2022 ◽  
Vol 20 (1) ◽  
pp. 32-40
Author(s):  
Bruna Castello Branco Livi ◽  
Rachel Wilczek Rodrigues ◽  
Fabio Batista ◽  
Paula Macaira
Keyword(s):  
Economic Analysis ◽  
Wind Farms ◽  
Offshore Wind ◽  
Offshore Wind Farms ◽  
Brazilian Case
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