scholarly journals Technical and economic feasibility study of a solar plant on a commercial surface in Azogues, Ecuador

2021 ◽  
Vol 19 ◽  
pp. 177-183
Author(s):  
I. Bermeo ◽  
◽  
L. Matute ◽  
E. Barragán-Escandón ◽  
X. Serrano-Guerrero ◽  
...  
Keyword(s):  
Energy Demand ◽  
Demand Curve ◽  
Energy Requirement ◽  
Evaluation Process ◽  
Economic Feasibility ◽  
International Standards ◽  
Photovoltaic System ◽  
Shopping Mall ◽  
Energy Potential ◽  
Solar Plant

The submitted paper deals with the shopping mall project that will be supplied with solar power. The selected location was "La Playa Store" shopping center located in the city of Azogues, south of Ecuador. This type of building has at least two characteristics worth studying i) the available surface on the roof, ii) the characteristics of the energy demand curve. This evaluation process establishes the energy requirement of the installation; that is, the energy potential available depending on the surface of its roof, to design a solar plant according to international standards and local ARCONEL 003/18 regulations. The tools used for the involving simulation were the Lumion software, an IFC file created and imported into the Solarius Pv energy simulator, a software specialized in the design of photovoltaic systems. The designed photovoltaic system has a projected annual energy generation of 9,3695.26 kWh; an installed price per watt of $1.1 with viable results at the end of the fifth year of implementation with an IRR of 7.33% and NPV of $390.51. As this is a commercial facility, a constant and flat consumption throughout the day is expected, so implementing solar energy would reduce the actual power requirements by 32.63%

POTENCIAL DE ENERGIA SOLAR PARA A IRRIGAÇÃO NO MUNICÍPIO DE BARBALHA-CE

2017 ◽  
Vol 32 (1) ◽  
pp. 57
Author(s):  
Francisca Valdelice Pereira Silva ◽  
Hernandes Oliveira Feitosa ◽  
Claudio Faustino Pereira ◽  
João Alvino Sampaio Silva ◽  
Erialdo Oliveira Feitosa
Keyword(s):  
Solar Energy ◽  
Renewable Energy Sources ◽  
Economic Feasibility ◽  
Photovoltaic System ◽  
Net Income ◽  
Energy Potential ◽  
Financial Return ◽  
Pv Systems ◽  
Historical Series ◽  
Alternative Means

Atualmente há uma preocupação na utilização de energia solar como meios alternativos, tendo em vista a viabilidade para implantação dos sistemas fotovoltaicos. Sendo de extrema importância nos tempos atuais devido à necessidade de utilização de novas fontes de energia renováveis. O objetivo desse trabalho é analisar a viabilidade econômica do uso da energia solar na agricultura familiar irrigada no município de Barbalha. O trabalho foi desenvolvido a partir de dados coletados na Estação Climatológica, localizada em Barbalha, numa série histórica de 30 anos, esses dados foram inserido num programa computacional Retscreen para analisar a viabilidade de projetos, foi feita uma simulaçao do sistema fotovoltaico para geração de energia acionando um conjunto motobomba de 1,0 cv para transportar água a uma caixa com capacidade de 1000 l á 6 m de altura, em seguida será realizada a irrigação por gotejamento de forma gravitacional numa área de 1 há cultivado com milho. Os resultados foram que o sistema só terá um retorno financeiro em 18,5 anos, passando essa energia solar para os agricultores verificamos que somando todos os custos do agricultor será de R$ 7710,00 com uma receita bruta de R$ 11963,52 durante dez meses período em que se podem cultivar dois ciclos de milho irrigado, obtendo uma receita liquida de R$ 4253,52. Assim, o agricultor poderá pagar o investimento da energia fotovoltaica em menos tempo. O sistema mostra-se vantajoso nestes aspectos e abre uma interessante perspectiva de aproveitamento mais eficiente da energia solar na irrigação.Palavras-chave: energia solar; sistemas fotovoltaicos; viabilidade econômica. SOLAR ENERGY POTENTIAL FOR IRRIGATION IN THE MUNICIPALITY OF BARBALHA-CEAbstract: Currently there is concern in the use of solar energy as alternative means in order to implement the viability of PV systems. It is of paramount importance in the present times due to the necessity of use of new renewable energy sources. The aim of this study is to analyze the economic feasibility of using solar energy in irrigated family farming in the municipality of Barbalha. The work was developed from data collected in the Climatological Station, located in Barbalha, a historical series of 30 years, this data is inserted into a computer program Retscreen Software to analyze the feasibility of projects, it was made a Simulation of the photovoltaic system for generating energy driving a pump of 1.0 hp to carry water to a box with 1000 l capacity with 6 m high, then will be held drip irrigation of gravity form an area of 1 is cultivated with milho.Os results were the system will only have a financial return approximately 18.5 years, passing this energy for farmers we found that adding all the farmer's cost will be R $ 7,710.00 with gross revenues of R $ 11,963.52 for ten month period in that can grow two cycles of irrigated corn, obtaining a net income of R $ 4,253.52. Thus, the farmer can afford the investment of photovoltaics in less time. The system seems advantageous in these aspects and opens an interesting perspective more efficient use of solar energy for irrigation. Keywords: solar energy; photovoltaics; economic viabilit.

scholarly journals Designing of an off-grid Photovoltaic system with battery storage for remote location

TECCIENCIA ◽  
2021 ◽  
Vol 16 (31) ◽  
pp. 15-28
Author(s):  
Asad A. Naqvi ◽  
Talha Bin Nadeem ◽  
Ahsan Ahmed ◽  
Asad Ali Zaidi
Keyword(s):  
Energy Demand ◽  
Net Present Value ◽  
Energy Requirement ◽  
Maximum Energy ◽  
Environmental Benefits ◽  
Photovoltaic System ◽  
Solar Irradiation ◽  
Battery Storage ◽  
Pv System ◽  
Battery Capacity

Off-grid Photovoltaic (PV) system along with battery storage is very effective solution for electrification in remote areas. However, battery capacity selection is the most challenging task in system designing. In this study, an off-grid PV system along with battery storage is designed for the remote area of Karachi, Pakistan. The system is designed by considering the maximum energy requirement in summer season. The battery storage is selected to fulfill the energy demand during the night and cloudy seasons. On the basis of load, a total of 6 kW system is required to fulfill the energy demand. For such system, 925 Ah of battery is required to meet the energy requirement for a day in absence of solar irradiation. A regression-based correlation between battery capacity and energy demand is prepared for suitable battery sizing using Minitab. An economic analysis of the project is also carried out from which a net present value and simple payback are determined as USD 10,348 and 3 years, respectively. The environmental benefits are also been determined. It is found that the system will reduce around 7.32 tons of CO2 per annum which corresponds to the 183.69 tons of CO2 not produced in the entire project life.

scholarly journals Valorization of Sewage Sludge via Gasification and Transportation of Compressed Syngas

Processes ◽  
2019 ◽  
Vol 7 (9) ◽  
pp. 556 ◽  
Author(s):  
Marek Mysior ◽  
Maciej Tomaszewski ◽  
Paweł Stępień ◽  
Jacek A. Koziel ◽  
Andrzej Białowiec
Keyword(s):  
Sewage Sludge ◽  
Energy Demand ◽  
Energy Transport ◽  
Compressibility Factor ◽  
Calorific Value ◽  
End Users ◽  
Economic Feasibility ◽  
Molar Ratio ◽  
Energy Potential ◽  
Molar Ratios

A significant challenge in the utilization of alternative gaseous fuels is to use their energy potential at the desired location, considering economic feasibility and sustainability. A potential solution is a compression, transportation in pressure tanks, and generation of electricity and heat directly at the recipient. In this research, the potential for generating syngas from abundant waste substrates was analyzed. The sewage sludge (SS) was used as an example of a bulky and abundant resource that could be valorized via gasification, compression, and transport to end-users in containers. A model was developed, and theoretical analyses were completed to examine the influence of the calorific value of the syngas produced from the SS gasification (under different temperatures and gasifying agents) on the efficiency of energy transportation of compressed syngas. First, the gasification simulation was carried out, assuming equilibrium in a downdraft gasifier (reactor) from 973–1473 K and five gasifying agents (O2, H2, CO2, water vapor, and air). Molar ratios of the gasifying agents to the (SS) C ranged from 0.1–1.0. The model predicted syngas composition, lower calorific values (LHV) for a given molar ratio of the gasification agent, and compressibility factor. It was shown that the highest LHV was obtained at 0.1 molar ratio for all gasifier agents. The highest LHV (~20 MJ∙(Nm3)−1) was obtained by gasification with H2 and the lowest (~13 MJ∙(Nm3)−1) in the case of air. Next, the available syngas volume in a compressed gas transportation unit and the stored energy was estimated. The largest syngas volume can be transported when O2 is used as a gasifying agent, but the highest amount of transported energy was estimated for gasification with H2. Finally, the techno-economic analyses showed that syngas from SS could be competitive when the energy of compressed syngas is compared with the demand of an average residential dwelling. The developed syngas energy transport system (SETS) concept proposes a new method to distribute compressed syngas in pressure tanks to end-users using all modes of transport carrying intermodal ISO containers. Future work should include the determination of energy demand for syngas compression, including pressure losses, heat losses, and analysis of the influence of syngas on storage and compression devices.

Municipal Solid Waste Characteristic and Energy Potential in Piyungan Landfill

2020 ◽  
Vol 898 ◽  
pp. 58-63
Author(s):  
Adolf Leopold S.M. Sihombing ◽  
Ragil Darmawan
Keyword(s):  
Anaerobic Digestion ◽  
Potential Energy ◽  
Landfill Gas ◽  
Calorific Value ◽  
Economic Feasibility ◽  
International Standards ◽  
Raw Material ◽  
Energy Potential ◽  
The Right ◽  
Gasification Technology

The daily waste tonnage at Piyungan landfill is 600 tons consisting of organic and combustible waste which can be used as an energy source. The aim of this study is to determine the potential energy of waste in the Piyungan landfill by its characteristics based on technology options including landfill gas, anaerobic digestion, gasification, and incineration. The Piyungan landfill mostly contain organic waste, up to 62.1% and combustible waste (RDF) at 26.8%. Moisture content of Piyungan’s RDF is higher than international standards for RDF as raw material in several countries. The various result for Nett Calorific Value is about 7.27 MJ/kg for fresh waste, 12.78 MJ/kg for RDF, 1.74 MJ/kg for market waste and 4.14 MJ/kg for mining waste. Landfill gas can generate energy up to 1.2 MW at the beginning and reaches 2 MW during peak periods. The potential energy by using anaerobic digestion and gasification technology are 1.54 MW and 3.12 MW. By incinerate fresh waste, the potential energy can be generated up to 9 MW and 4.39 MW when incinerate RDF waste only. Calculation of potential energy can be used as a basis for selecting the right technology, especially for economic feasibility for each technology.

scholarly journals Urban energy system management for enhanced energy potential for upcoming smart cities

2020 ◽  
Vol 38 (5) ◽  
pp. 1968-1982
Author(s):  
Deepak Kumar
Keyword(s):  
Renewable Energy ◽  
Energy Demand ◽  
Industrial Development ◽  
Smart Cities ◽  
Energy System ◽  
Economic Feasibility ◽  
Urban Region ◽  
Design Development ◽  
Energy Potential ◽  
Hybrid Renewable Energy System

Scientific and industrial development has given rise to a rapidly increasing energy demand. Alternative and augmented energy resources are expected everywhere due to scarcity and depletion of other non-renewable resources. During recent years wind and solar had emerged as a promising cleaner energy source to offer a favourable solution with better efficiency. Hence, the attention has now diverted towards scaling up of hybrid system of energy generation. Numerous attempts have been taken to demonstrate the technological development concerning the requirement of the region. Whilst some research has already started to evaluate the working of the prototype, insignificant attention has been paid towards it. The current work also focuses on the simulation with hybrid urban renewable energy systems for techno-economic feasibility analysis. There were earlier attempts to report the advancement occurred in the technological, scientific and industrial sector due to hybrid renewable energy system. In some regard, it was an attempt to showcase the modelling of a typical urban requirement in an hourly load profile to identify in the energy potentials of the urban region. These will help to summarize the past, present and future trends of the hybrid energy system design, development and implementation for the urban region, which can be later on replicated to other parts of the world.

scholarly journals Investigating the Impact of Integration the Saudi Code of Energy Conservation with the Solar PV Systems in Residential Buildings

2021 ◽  
Vol 13 (6) ◽  
pp. 3384
Author(s):  
Radwan Almasri ◽  
Abdullah Alardhi ◽  
Saad Dilshad
Keyword(s):  
Energy Conservation ◽  
Energy Demand ◽  
Net Present Value ◽  
Residential Buildings ◽  
Electrical Energy ◽  
Economic Feasibility ◽  
Photovoltaic System ◽  
Solar Pv ◽  
Thermal Insulations ◽  
The Impact

The demand for air conditioning is increasing day by day in the world’s hot and humid climate areas. Energy conservation in buildings can play a vital role in meeting this high cooling demand. This paper attempts to consider the impacts of energy efficiency and renewable energy measures on the energy demand of Saudi Arabia’s residential buildings. The energy analysis and economic feasibility analysis of thermal insulations are performed in this paper by investigating the effect of residential buildings’ thermal insulations on the economic feasibility of grid-connected photovoltaic systems. This was the combined effort of building owners and government, and buildings were examined if a photovoltaic system and thermal insulation were used. The study was conducted in the three climate zones in Saudi Arabia. The results showed that the building base case’s annual electrical energy consumption in Riyadh city was 67,095 kWh, Hail 57,373 kWh, and Abha 26,799 kWh. For the basic case-building in Riyadh, 69% of the total electrical energy was used for cooling and heating. Applying the Saudi Building Code requirement for Riyadh will provide only 18% of the total energy used for cooling and heating. RETScreen 6.1 software was used to design a photovoltaic system; the analysis was done using technical and economic indicators. The annual yield factor for Riyadh, Hail, and Abha was 1649 kWh/kWp/year, 1711 kWh/kWp/year, and 1765 kWh/kWp/year, respectively. The capacity factors for Riyadh, Hail, and Abha were 18.8%, 19.5%, and 20.1%, respectively. The Unified photovoltaic Levelized energy costs were 0.031, 0.030, and 0.029 $/kWh for Riyadh, Hail, and Abha, respectively. Finally, the Net Present Value and greenhouse gas emissions reduction have been estimated.

scholarly journals Design and cost estimation of solar powered reverse osmosis desalination system

2021 ◽  
Vol 13 (6) ◽  
pp. 168781402110290
Author(s):  
Muhammad Wajid Saleem ◽  
Asad Abbas ◽  
Muhammad Asim ◽  
Ghulam Moeen Uddin ◽  
Tariq Nawaz Chaudhary ◽  
...  
Keyword(s):  
Reverse Osmosis ◽  
Cost Estimation ◽  
Energy Demand ◽  
Energy Requirement ◽  
Photovoltaic System ◽  
Design System ◽  
Inlet Concentration ◽  
Remote Areas ◽  
Simulation Based ◽  
Solar Powered

Photovoltaic assisted reverse osmosis (PV-RO) has been proven an efficient renewable energy-based desalination technique to provide drinkable water, especially in remote areas. In this manuscript, a simulation based RO design system was adopted to evaluate the desalination performance for three cities of Pakistan, that is, Lahore, Hasil Pur, and Faisalabad. The inlet concentration of Lahore, Hasil Pur, and Faisalabad was reduced from 1495, 2190, and 7683 TDS to 295.44, 237.69, and 241.98 TDS respectively, according to the WHO drinking water recommendations. The RO desalination system was integrated with the photovoltaic system to fulfill the energy requirement for desalination. The energy requirement for the RO system for the working of 10 h/day with the freshwater production rate of 0.80 m3/h for Lahore, Hasil Pur, and Faisalabad is 60, 95, and 311 kWh/month, respectively. According to PVsyst software, the energy demand can be accomplished by installing 9 PV panels in Lahore, 15 PV panels in Hasil Pur, and 40 PV panels in Faisalabad. The simulation results in PVsyst showing that the battery losses will be 52.2% in Lahore, 51.1% in Hasil Pur, and 49% in Faisalabad.

scholarly journals Scheduling Optimization of a Cabinet Refrigerator Incorporating a Phase Change Material to Reduce Its Indirect Environmental Impact

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2154
Author(s):  
Angelo Maiorino ◽  
Adrián Mota-Babiloni ◽  
Manuel Gesù Del Duca ◽  
Ciro Aprea
Keyword(s):  
Phase Change ◽  
Emission Reduction ◽  
Energy Demand ◽  
Carbon Emission ◽  
Phase Change Materials ◽  
Demand Curve ◽  
Optimization Technique ◽  
Intensity Variation ◽  
Carbon Intensity ◽  
Carbon Emission Reduction

Phase Change Materials (PCMs) incorporated in refrigerators can be used to shift their energy consumption from peak periods, when the electric network energy demand is the highest, to off-peak periods. While PCMs can flatten the energy demand curve, they can achieve economic savings if Time-of-Use (TOU) electricity tariffs are applied. However, the hourly carbon emission factor is not commonly linked to the hourly tariff, and the final CO2 emitted due to the operations of the refrigerator would not be fully optimized. In this work, a method based on the Simulated Annealing optimization technique was proposed to identify the optimal working schedule of a cabinet refrigerator incorporating a PCM to reduce its indirect carbon emissions. Data from countries with different representative carbon intensity profiles were used. The normalized standard deviation and normalized range are the best statistical indexes to predict carbon emission reduction in the proposed solution. These parameters proved that countries with a higher hourly carbon intensity variation (Uruguay, France, Denmark, and Germany) benefit from the application of the algorithm. Cost and carbon emission reduction cannot be maximized simultaneously, and a trade-off is required.

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 Feasibility of Energy Supply by Small Modular Nuclear Reactors on Small Islands: Case Studies of Jeju, Tasmania and Tenerife

Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2587 ◽  
Author(s):  
Sanghyun Hong ◽  
Barry Brook
Keyword(s):  
Energy Demand ◽  
Nuclear Reactors ◽  
High Energy ◽  
Economic Feasibility ◽  
System Level ◽  
Small Island ◽  
Small Islands ◽  
Hydroelectric Power ◽  
Generation Cost ◽  
Electricity Grids

Small modular nuclear reactors (SMRs) offer the promise of providing carbon-free electricity and heat to small islands or isolated electricity grids. However, the economic feasibility of SMRs is highly system-dependent and has not been studied in this context. We selected three case-study islands for such an evaluation: Jeju, Tasmania and Tenerife based on their system complexity. We generated 100,000 electricity-mix cases stochastically for each island and examined the system-level generation-cost changes by incrementing the average generation cost of SMRs from USD$60 to 200 MWh−1. SMRs were found to be economically viable when average generation cost was <$100 MWh−1 for Jeju and <$140 MWh−1 for Tenerife. For Tasmania the situation was complex; hydroelectric power is an established competitor, but SMRs might be complementary in a future “battery of the nation” scenario where most of the island’s hydro capacity was exported to meet peak power demand on the mainland grid. The higher average generation cost of SMRs makes it difficult for them to compete economically with a fossil fuel/renewable mix in many contexts. However, we have demonstrated that SMRs can be an economically viable carbon-free option for a small island with a limited land area and high energy demand.

Sign in / Sign up

Export Citation Format

Share Document