scholarly journals Key Technologies and Economic Analysis of Decentralized Wind Power Consumption: A Case Study in B City, China

Energies ◽  
2020 ◽  
Vol 13 (16) ◽  
pp. 4147 ◽  
Author(s):  
Hui Huang ◽  
Yingying Du ◽  
Shizhong Song ◽  
Yanlei Guo
Keyword(s):  
Power Consumption ◽  
Wind Power ◽  
Net Present Value ◽  
Economic Feasibility ◽  
Point Of View ◽  
Co2 Emission Reduction ◽  
Economic Point ◽  
The North ◽  
Key Technologies ◽  
Feed In Tariff

Wind power technology is developing rapidly in China. Especially in the north of China, decentralized wind power (DWP) has developed rapidly. However, wind curtailment exceeds 4% of the gross generation, which has become an important obstacle restricting the development of DWP in 2019. Technical schemes are effective solutions to promote decentralized wind power consumption (DWPC). Moreover, there are few economic analyses of DWP projects with key technologies. This paper summarizes the typical technical schemes and analyzes the economy of a DWP grid-connected project with typical technical schemes by combining methods of the net present value (NPV) and real options (RO). It appears that the DWP project can be profitable with an NPV of about CNY 4.3721 million and an option value of CNY 16.6022 million in the case of a feed-in tariff of 0.34 CNY/kWh. Feed-in tariff and equipment investment costs are the most relevant parameters for economic feasibility according to the sensitivity analysis. Furthermore, 30.73 million kWh connects to the Mengxi grid each year. The project has an annual maximum CO2 emission reduction of about 31 thousand tons and an SO2 of about 0.1 thousand tons. In addition, it also realizes fine social benefits, including the support of local residents and the improvement of local new urbanization levels. Finally, this paper puts forward policy suggestions for the development of DWP mainly from an economic point of view.

scholarly journals Economic Evaluation and Techno-Economic Sensitivity Analysis of a Mass Integrated Shrimp Biorefinery in North Colombia

Polymers ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2397
Author(s):  
Antonio Zuorro ◽  
Kariana Andrea Moreno-Sader ◽  
Ángel Darío González-Delgado
Keyword(s):  
Sensitivity Analysis ◽  
Economic Evaluation ◽  
Net Present Value ◽  
Raw Materials ◽  
Integrated Approach ◽  
Economic Feasibility ◽  
Point Of View ◽  
Economic Point ◽  
The North ◽  
Water Pinch

The high freshwater consumption requirements in shrimp biorefinery approaches represents one of the major drawbacks of implementing these technologies within the shrimp processing industry. This also affects the costs associated with the plant operation, and consequently, the overall economic performance of the project. The application of mass integration tools such as water pinch analysis can reduce frewshwater consumption by up to 80%, contributing to shrimp biorefinery sustainability. In this work, the economic evaluation and the techno-economic sensitivity analysis for a mass integrated approach for shrimp biorefinery were performed to determine the economic feasibility of the project when located in the North-Colombia region and to identify the critical techno-economic variables affecting the profitability of the process. The integrated approach designed to process 4113.09 tons of fresh shrimp in Colombia reaches a return on investment (%ROI) at 65.88% and a net present value (NPV) at 10.40 MM USD. The process supports decreases of up to 28% in capacity of production and increases of 12% and 11% in the cost of raw materials and variable operating costs without incurring losses, respectively. These findings suggest that the proposed design of the water recycling network coupled to a shrimp biorefinery approach is attractive from an economic point of view.

scholarly journals Engineering and Economic Perspective in The Production of Cu Nano

2020 ◽  
Vol 8 (1) ◽  
pp. 15
Author(s):  
Annisa Yuliandini ◽  
Asep Bayu Dani Nandiyanto
Keyword(s):  
Economic Evaluation ◽  
Net Present Value ◽  
Copper Acetate ◽  
Tween 80 ◽  
Point Of View ◽  
Industrial Scale ◽  
Sorbitan Monooleate ◽  
Economic Point ◽  
Economic Parameters ◽  
Break Even Point

The purpose of this study is to analyze the production of copper nanoparticles (Cu NPs) on an industrial scale in an engineering perspective and economic evaluation perspective. Energy is needed because of various energy related applications. Evaluation of Cu nanoparticle production in an engineering perspective is carried out from the selection of processes that are adapted to industrial scale, calculation of mass balance, to the adjustment of commercially available equipment. Evaluation of production from an economic point of view is done by calculating economic parameters: Gross Profit Margin, Internal Return Rate, Payback Period, Cumulative Net Present Value, Profitability Index, and Break Even Point. Briefly from the production process, we use Copper acetate hydrate (CuAc2.2H2O) (as a source of Cu), Tween 80 (polyoxyethylene-(80)-sorbitan monooleate) and ethylene glycol (as a reducing agent). The engineering viewpoint shows this process is capable of producing Cu nanoparticles which can be used as conductive nanoionic. Economic evaluation determines the process is beneficial, discussing with positive values ​​all economic parameters. However, for some variations this process is not profitable, so economic evaluation is needed.

scholarly journals A Technical, Economic, and Environmental Performance of Grid-Connected Hybrid (Photovoltaic-Wind) Power System in Algeria

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
Djohra Saheb-Koussa ◽  
Mustapha Koussa ◽  
Nourredine Said
Keyword(s):  
Power Systems ◽  
Wind Power ◽  
Weather Conditions ◽  
Energy System ◽  
Point Of View ◽  
Environmental Study ◽  
Economic Point ◽  
Wind Power Systems ◽  
Greenhouse Effects ◽  
Two Parameters

This paper studies the technical, economic, and environmental analysis of wind and photovoltaic power systems connected to a conventional grid. The main interest in such systems is on-site consumption of the produced energy, system hybridization, pooling of resources, and contribution to the environment protection. To ensure a better management of system energy, models have been used for determining the power that the constituting subsystems can deliver under specific weather conditions. Simulation is performed using MATLAB-SIMULINK. While, the economic and environmental study is performed using HOMER software. From an economic point of view, this allows to compare the financial constraints on each part of the system for the case of Adrar site which is located to the northern part of the south of Algeria. It also permits to optimally size and select the system presenting the best features on the basis of two parameters, that is, cost and effectiveness. From an environmental point of view, this study allows highlighting the role of renewable energy in reducing gas emissions related to greenhouse effects. In addition, through a set of sensitivity analysis, it is found that the wind speed has more effects on the environmental and economic performances of grid-connected hybrid (photovoltaic-wind) power systems.

scholarly journals Technical-economic analysis of different lighting systems for broiler poultry

2016 ◽  
Vol 36 (2) ◽  
pp. 242-252 ◽  
Author(s):  
Priscilla A. P. Ribeiro ◽  
Tadayuki Yanagi Junior ◽  
Joaquim P. da Silva ◽  
Sílvia de N. M Yanagi ◽  
Renato S. Campos
Keyword(s):  
Economic Analysis ◽  
Power Consumption ◽  
Net Present Value ◽  
Economic Feasibility ◽  
Financial Mathematics ◽  
Present Value ◽  
Artificial Lighting ◽  
Fluorescent Lamps ◽  
Lighting Systems ◽  
Incandescent Lamps

ABSTRACT Broiler poultry is highly dependent on artificial lightening. Power consumption costs of artificial lighting systems is the second largest expense related to broiler industry, second only to feed expenses. Therefore, the current study focused to analyze technical and economic feasibility of replacing incandescent lamps already used in aviaries with other lamp types. Costs related to power consumption, implementation and maintenance of the lighting systems were evaluated with the aid of financial mathematics using net present value, return over investment and payback. Systems composed of six lamp types were analyzed in two different configurations to meet the minimum illuminance of 5 and 20 lux and for use in conventional sheds and dark house. The lamps tested were incandescent (LI) of 100 W, compact fluorescent (CFL) of 34 W, mixed (ML) 160 W sodium vapor (SVL) of 70 W, tubular fluorescent T8 (TFL T8) of 40 W and tubular fluorescent T5 (TFL T5) of 28 W. For the systems tested, it was found that the tubular fluorescent lamps T8 and T5 showed the best results of technical and economic feasibility.

scholarly journals The Economic Feasibility of Floating Offshore Wave Energy Farms in the North of Spain

Energies ◽  
2020 ◽  
Vol 13 (4) ◽  
pp. 806 ◽  
Author(s):  
Laura Castro-Santos ◽  
Ana Bento ◽  
Carlos Guedes Soares
Keyword(s):  
Wave Energy ◽  
Net Present Value ◽  
Energy Resource ◽  
Economic Feasibility ◽  
Wave Energy Converter ◽  
Energy Converter ◽  
The North ◽  
Cost Of Energy ◽  
Offshore Wave ◽  
North Of Spain

A technique to analyse the economic viability of offshore farms composed of wave energy converters is proposed. Firstly, the inputs, whose value will be considered afterwards in the economic step, was calculated using geographic information software. Secondly, the energy produced by each wave converter was calculated. Then the economic factors were computed. Finally, the restriction that considers the depth of the region (bathymetry) was put together with the economic outputs, whose value depends on the floating Wave Energy Converter (WEC). The method proposed was applied to the Cantabric and Atlantic coasts in the north of Spain, a region with a good offshore wave energy resource. In addition, three representative WECs were studied: Pelamis, AquaBuoy and Wave Dragon; and five options for electric tariffs were analysed. Results show the Wave Energy Converter that has the best results regarding its LCOE (Levelized Cost of Energy), IRR (Internal Rate of Return) and NPV (Net Present Value), and which area is best for the development of a wave farm.

Economic assessment of producing and selling biomethane into a regional market

2018 ◽  
Vol 31 (1) ◽  
pp. 60-76 ◽  
Author(s):  
Mattia De Rosa
Keyword(s):  
Anaerobic Digestion ◽  
Fossil Fuel ◽  
Net Present Value ◽  
Energy Resource ◽  
Economic Assessment ◽  
Point Of View ◽  
Organic Substrates ◽  
Present Value ◽  
Economic Point ◽  
Fuel Prices

Biogas is a promising renewable energy resource produced by using anaerobic digestion of organic substrates and it is mainly used to generate electricity by means of biogas engines. Other potential utilisations are growing, e.g. grid injection and biofuels production but, generally, a treatment aimed to increase its quality is mandatory and greater investments are generally required to produce upgraded biogas (biomethane). Despite the increasing of interest on these applications, a lack of information is still present from an economic point of view. The present paper performs an extended economic assessment of upgrading and selling biogas starting from a typical farm-based anaerobic digestion plant in Northern Ireland assumed as reference. Several economic indexes have been considered to assess the economic performance of the upgraded anaerobic digestion plant, namely net present value, pay-back period, profitability index and internal rate of return. Moreover, different scenarios in terms of fossil fuel prices have been analysed. The results show that producing and selling biomethane can be economically feasible if an adequate market is fostered. Optimum anaerobic digestion sizes between 26.9 and 64.4 tonne/y have been found, with correspondent net present value and pay-back period values in the range of £6.7–64.4M and 2.8–7.5 years, respectively, depending on the price scenarios analysed and the economic index chosen. Generally, adopting the net present value as objective function of the optimisation leads to greater anaerobic digestion size than the other indexes for any price scenarios considered. Finally, tougher market conditions (i.e. higher fossil fuel prices) lead to better economic performances of the upgraded anaerobic digestion configuration.

Designing an olive tree pruning biorefinery for the production of bioethanol, xylitol and antioxidants: a techno-economic assessment

Holzforschung ◽  
2018 ◽  
Vol 73 (1) ◽  
pp. 15-23 ◽  
Author(s):  
Ana Susmozas ◽  
Antonio D. Moreno ◽  
Juan M. Romero-García ◽  
Paloma Manzanares ◽  
Mercedes Ballesteros
Keyword(s):  
Net Present Value ◽  
Energy Resource ◽  
Economic Assessment ◽  
Olive Tree ◽  
Simulation Software ◽  
Economic Feasibility ◽  
Point Of View ◽  
Small Scale ◽  
Biomass Resources ◽  
Tree Pruning

Abstract Olive tree crops, extensively cultivated in Southern European countries, yield large amounts of olive tree pruning (OTP) biomass. This could be used within the framework of a bio-based economy that maximizes the utilization of biomass resources in a sustainable way. In the present work, the techno-economic feasibility of an OTP-based integrated biorefinery is evaluated by the process simulation software Aspen Plus, while the process is aimed at the production of ethanol, xylitol, antioxidants and electricity. Overall, the proposed plant could perform economically, and it is self-sufficient from an energy resource point of view. The plant as designed yields around 109 l of ethanol, 27 kg of xylitol and 43 kg of antioxidants per ton of OTP biomass, with an estimated production cost of 0.24 € l−1, 1.48 € kg−1 and 5.12 € kg−1, respectively. In a 10-year period, the economic profitability of the biorefinery plant is within a positive investment balance, with a net present value (NPV) of 32.1 M€ and a payback period of 5–6 years. These figures point out the opportunities for placing in the market several OTP-based products. Based on these data, the construction of small-scale OTP-based lignocellulosic biorefineries seems to be a realistic scenario.

scholarly journals Sustainability of Biogas Based Projects: Technical and Economic Analysis

2019 ◽  
Vol 93 ◽  
pp. 03001
Author(s):  
Valeria Annibaldi ◽  
Federica Cucchiella ◽  
Massimo Gastaldi ◽  
Marianna Rotilio ◽  
Vincenzo Stornelli
Keyword(s):  
Process Monitoring ◽  
Net Present Value ◽  
Stable Process ◽  
Point Of View ◽  
Plant Performance ◽  
Electronic Systems ◽  
Economic Point ◽  
Incentive Policies ◽  
Transformation Of Organic Matter ◽  
Economic Tools

Biomethane is a renewable gas produced by the transformation of organic matter. It can lead to emissions reduction and it contributes to increasing methane production. Incentive policies favour its development and for this reason, the objective of this paper is to investigate the economic performance of biomethane plants and their process monitoring by electronic systems. Mathematical modeling is here presented to study the financial feasibility of biomethane plants in function of the size (100 m3/h, 250 m3/h, 500 m3/h, 1000 m3/h), the feedstock used (organic fraction of municipal solid waste and a mixture of 30% maize and 70% manure residues on a weight basic) and the destination for final use (fed into the grid, destined for cogeneration or sold as vehicle fuel). From an economic point of view the plant performance is studied by economic tools as Net Present Value and Discounted Payback Time and the uncertainty analysis is implemented using Monte Carlo method. Moreover, from a technical point of view, process monitoring is analyzed to understand what happens in a biomethane plant and help to maintain a stable process. The results show that the profitability of biomethane plants is verified in several scenarios presenting losses only if subsidies were removed.

Economic Evaluation of Maintenance Strategies for Steam Generator Tubes Using Probabilistic Fracture Mechanics and a Financial Method

2007 ◽  
Vol 120 ◽  
pp. 119-126
Author(s):  
Yoshihiro Isobe ◽  
Mitsuyuki Sagisaka ◽  
Shinobu Yoshimura ◽  
Genki Yagawa
Keyword(s):  
Fracture Mechanics ◽  
Steam Generator ◽  
Net Present Value ◽  
Point Of View ◽  
Discounted Cash Flow ◽  
Pressurized Water ◽  
Economic Point ◽  
Probabilistic Fracture Mechanics ◽  
Water Reactors ◽  
Financial Indices

As an application of probabilistic fracture mechanics (PFM) and a financial method, a risk-benefit model was developed for the purpose of optimizing maintenance activities of steam generator (SG) tubes used in pressurized water reactors (PWRs). To justify whether or not it is worth while implementing the selected maintenance strategy in terms of an economic point of view, net present value (NPV) was calculated as an index which is one of the most fundamental financial indices for decision-making based on the discounted cash flow (DCF) method.

scholarly journals SHIP2FAIR – Martini & Rossi: integration of Solar Heat in Industrial Process – Preliminary evaluation

2019 ◽  
Vol 113 ◽  
pp. 03018 ◽  
Author(s):  
Stefano Barberis ◽  
Francesco Peccianti ◽  
Luca Castellino ◽  
Thomas Bolognesi ◽  
Alessandro Bortoletto
Keyword(s):  
Industrial Process ◽  
Economic Feasibility ◽  
Point Of View ◽  
Solar Irradiation ◽  
Preliminary Evaluation ◽  
Solar Collectors ◽  
Economic Point ◽  
Solar Heat ◽  
Funded Project ◽  
Definition Of

SHIP2FAIR is a H2020 European funded project†, which aim to foster the integration of solar heat in industrial processes from the agro-food sector facilitating the integration of solar heat production in low temperature processes. Based on the assessment of the industrial process for the production of different spirits and the local solar potential in Pessione plant (TO) of Martini & Rossi – one of the four demosite of the project -, the preliminary results that guided the choice of the most suitable solar collectors (Fresnel) and the definition of the thermo-economic parameters for the solar plant are hereby presented. The preliminary assessment takes into account different perspectives from the industrial and economic point of view: the availability of suitable surfaces, the economics of the investment and the best processes to be fed by solar produced steam towards a preliminary techno-economic feasibility study. The starting points for the analysis have been the characterization of the thermal demand in terms of necessary temperature level (°C), overall consumption and time distribution. The following step has been the identification of the suitable collectors to be installed taking into account the thermal parameters presented before, the boundary conditions of the industrial facility (e.g. space available, orientation, etc.), the technical characteristics of the collector itself and the solar irradiation available considering the plant’s location. Moreover, the complex thermal facility in the factory, constituted by multiple (3) gas boilers and a Combined Heat and Power (CHP) plant in two different but linked pressurized steam loops, is taken into account for the definition of the solar collectors configuration and their integration via the proper management of heat generators and storage. The calculations are based on the expected thermal (steam) production guaranteed by the solar collectors and avoided GHG based on the reduction of gas fired boilers consumption.

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