scholarly journals Microgrids for rural schools: An energy-education accord to curb societal challenges for sustainable rural developments

2019 ◽  
Vol 8 (3) ◽  
pp. 231-241
Author(s):  
Abhi Chatterjee ◽  
Alan Brent ◽  
Ramesh Rayudu ◽  
Piyush Verma
Keyword(s):  
Developing Countries ◽  
Energy System ◽  
Quality Education ◽  
Remote Communities ◽  
The Sustainable Development ◽  
Social Challenges ◽  
Energy Education ◽  
Regular School ◽  
Hybrid Renewable Energy System ◽  
Cost Of Energy

Quality education and schools have a key role to play in the sustainable development of society. Unfortunately, many remote communities in developing countries fail to enjoy access to quality education due to a lack of electricity, thereby interrupting regular school services in the villages. The main objective of the paper contributes to understanding the importance of the energy-education accord, and aims to curb the social challenges prevailing in the villages. Specifically, the paper suggests a technical intervention by designing a hybrid renewable energy system for such schools. The approach is demonstrated through a case study with a load demand of approximately 4 kWh/d, comprising a class size of 40 students. A techno-economic evaluation of the energy system reveals the levelized cost of energy of the system at USD 0.22 per kWh, which may be affordable considering number of other aspects, outlined in this paper, to enable a larger uptake of such systems in developing countries. ©2019. CBIORE-IJRED. All rights reserved

Techno-Economic Evaluation of Stand-alone Hybrid Renewable Energy System for Remote Village Using HOMER-Pro Software

2017 ◽  
Vol 6 (2) ◽  
pp. 74 ◽  
Author(s):  
Ajoya Kumar Pradhan ◽  
Mahendra Kumar Mohanty ◽  
Sanjeeb Kumar Kar
Keyword(s):  
Renewable Energy ◽  
Wind Speed ◽  
Optimization Design ◽  
Unit Cost ◽  
Flow Analysis ◽  
Energy System ◽  
Hybrid Energy ◽  
Hybrid Renewable Energy System ◽  
Cost Of Energy ◽  
Hybrid Renewable Energy

The off-grid hybrid renewable energy generation system has lesser cost of energy with higher reliability when compared with solar photovoltaic (PV) or wind energy system individually. The optimization design is worked out by reducing the unit cost of energy (UCOE) for different case studies and comparing the outcomes obtained by the use of HOMER-Pro (Hybrid Optimization Model of Electric Renewable) software. The optimal cash flow analysis of hybrid energy system is based on the load patterns is discussed, solar irradiance (kW/m2) of site at proper latitude and longitude, wind speed and price of diesel, which is collected from a remote village in Khurda District, Odisha in India. Moreover, the optimization and sensitivity results of the system are find out by varying the input parameters like solar radiation, wind speed etc.

scholarly journals Techno economic environmental assessment of hybrid renewable energy system in India

2021 ◽  
Vol 10 (4) ◽  
pp. 343
Author(s):  
Venkatachalam K M ◽  
V Saravanan
Keyword(s):  
Greenhouse Gas ◽  
Hybrid System ◽  
Greenhouse Gas Emission ◽  
Operating Cost ◽  
Energy System ◽  
Environmental Research ◽  
Diesel Generator ◽  
Gas Emission ◽  
Hybrid Renewable Energy System ◽  
Cost Of Energy

<p>The co-ordination of non-conventional energy technologies such as solar, wind, geothermal, biomass and ocean are gaining significance in India due to more energy requirements and high greenhouse gas emission. In this assessment, the sustainability of emerging the gird isolated hybrid solar photovoltaic (PV)/wind turbine (WT)/diesel generator (DG)/battery system for Arunai Engineering College (India) building is evaluated. The techno- economic and environmental research was inspected by HOMER Pro software by choosing the optimal combination depends on size of the components, renewable fraction, net present cost (NPC), cost of energy (COE) and greenhouse gas (GHG) emission of the hybrid system. From the acquired outcomes and sensitivity investigation, the optimal PV-WT-DG- Battery combination has a NPC of $28.944.800 and COE $0.1266/kWh, with an operating cost of $256.761/year. The grid isolated hybrid system is environmentally pleasant with a greenhouse gas emission of 2.692 kg/year with renewable fraction of 99.9%.</p>

scholarly journals Optimising Electrical Power Supply Sustainability Using a Grid-Connected Hybrid Renewable Energy System—An NHS Hospital Case Study

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 7084
Author(s):  
Fadi Kahwash ◽  
Basel Barakat ◽  
Ahmad Taha ◽  
Qammer H. Abbasi ◽  
Muhammad Ali Imran
Keyword(s):  
Renewable Energy ◽  
Electrical Power ◽  
Energy System ◽  
Optimal Solutions ◽  
Hybrid Renewable Energy System ◽  
Renewable Energy System ◽  
Cost Of Energy ◽  
The Uk ◽  
Hybrid Renewable Energy

This study focuses on improving the sustainability of electrical supply in the healthcare system in the UK, to contribute to current efforts made towards the 2050 net-zero carbon target. As a case study, we propose a grid-connected hybrid renewable energy system (HRES) for a hospital in the south-east of England. Electrical consumption data were gathered from five wards in the hospital for a period of one year. PV-battery-grid system architecture was selected to ensure practical execution through the installation of PV arrays on the roof of the facility. Selection of the optimal system was conducted through a novel methodology combining multi-objective optimisation and data forecasting. The optimisation was conducted using a genetic algorithm with two objectives (1) minimisation of the levelised cost of energy and (2) CO2 emissions. Advanced data forecasting was used to forecast grid emissions and other cost parameters at two year intervals (2023 and 2025). Several optimisation simulations were carried out using the actual and forecasted parameters to improve decision making. The results show that incorporating forecasted parameters into the optimisation allows to identify the subset of optimal solutions that will become sub-optimal in the future and, therefore, should be avoided. Finally, a framework for choosing the most suitable subset of optimal solutions was presented.

Techno-economic Evaluation of Stand-alone Hybrid Renewable Energy System for Remote Village Using HOMER-pro Software

2017 ◽  
Vol 6 (2) ◽  
pp. 73
Author(s):  
Ajoya Kumar Pradhan ◽  
Mahendra Kumar Mohanty ◽  
Sanjeeb Kumar Kar
Keyword(s):  
Renewable Energy ◽  
Wind Speed ◽  
Optimization Design ◽  
Unit Cost ◽  
Flow Analysis ◽  
Energy System ◽  
Hybrid Energy ◽  
Hybrid Renewable Energy System ◽  
Cost Of Energy ◽  
Hybrid Renewable Energy

The off-grid hybrid renewable energy generation system has lesser cost of energy with higher reliability when compared with solar Photovoltaic (PV) or wind energy system individually. The optimization design is worked out by reducing the Unit Cost Of Energy (UCOE) for different case studies and comparing the outcomes obtained by the use of HOMER-Pro (hybrid optimization model of electric renewable) software. The optimal cash flow analysis of hybrid energy system is based on the load patterns is discussed, solar irradiance (kW/m2) of site at proper latitude and longitude, wind speed and price of diesel, which is collected from a remote village in Khurda District, Odisha in India. Moreover, the optimization and sensitivity results of the system are find out by varying the input parameters like solar radiation, wind speed etc.

scholarly journals Techno-Economic Analysis of a Stand-Alone Hybrid System: Application in Donoussa Island, Greece

Energies ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1868
Author(s):  
Michail Katsivelakis ◽  
Dimitrios Bargiotas ◽  
Aspassia Daskalopulu ◽  
Ioannis P. Panapakidis ◽  
Lefteri Tsoukalas
Keyword(s):  
Renewable Energy ◽  
Economic Analysis ◽  
Hybrid System ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Hybrid Renewable Energy Systems ◽  
Hybrid Renewable Energy System ◽  
Cost Of Energy ◽  
System Configurations ◽  
Hybrid Renewable Energy

Hybrid Renewable Energy Systems (HRES) are an attractive solution for the supply of electricity in remote areas like islands and communities where grid extension is difficult. Hybrid systems combine renewable energy sources with conventional units and battery storage in order to provide energy in an off-grid or on-grid system. The purpose of this study is to examine the techno-economical feasibility and viability of a hybrid system in Donoussa island, Greece, in different scenarios. A techno-economic analysis was conducted for a hybrid renewable energy system in three scenarios with different percentages of adoption rate (20%, 50% and 100%)and with different system configurations. Using HOMER Pro software the optimal system configuration between the feasible configurations of each scenario was selected, based on lowest Net Present Cost (NPC), minimum Excess Electricity percentage, and Levelized Cost of Energy (LCoE). The results obtained by the simulation could offer some operational references for a practical hybrid system in Donoussa island. The simulation results confirm the application of a hybrid system with 0% of Excess Electricity, reasonable NPC and LCoE and a decent amount of renewable integration.

scholarly journals Techno-Economic Study for Hybrid Renewable Energy System for Coastal Residential Application in Pekan, Pahang

2018 ◽  
Vol 5 (1) ◽  
pp. 72-80
Author(s):  
Roziah Zailan ◽  
Siti Nurzalikha Zaini ◽  
Muhammad Ikram Mohd Rashid ◽  
A.A Razak
Keyword(s):  
Renewable Energy ◽  
Low Cost ◽  
Minimum Cost ◽  
Energy System ◽  
Economic Study ◽  
Diesel Generator ◽  
Generator System ◽  
Hybrid Renewable Energy System ◽  
Cost Of Energy ◽  
Hybrid Optimization Model

Techno-economic study is needful to optimize the usage of renewable energy components that targeting low cost of electricity generation system. The selected case study area is coastal area in Pekan, Pahang, Malaysia. The autonomous system designed in this study is hybrid standalone PV-wind-diesel energy system to fulfil a 20.1 kWh/day demand for a coastal housing. Such power system was designed and optimized further to meet the power demand at a minimum cost of energy using energy optimization software, Hybrid Optimization Model for Electric Renewables (HOMER). The analysis was focused on the operational characteristics, economics and environmental. The standalone PV-wind-diesel energy system has total net present cost about $61, 911 with cost of energy $0.66/kWh. Apparently, the generation of electricity from both wind turbine and PV was inflated with the diesel generator system. From the payback period calculation, time taken to recover full capital invested through the installation of hybrid PV-wind-diesel is six years. Moreover, the installation of diesel generator should be optimizing in order to mitigate the environmental emissions

scholarly journals Optimization of a Novel Hybrid Wind Bio Battery Solar Photovoltaic System Integrated with Phase Change Material

Energies ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 6373
Author(s):  
Vijay Mudgal ◽  
Preeti Singh ◽  
Sourav Khanna ◽  
Chandan Pandey ◽  
Victor Becerra ◽  
...  
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Energy System ◽  
Photovoltaic System ◽  
Hybrid Renewable Energy System ◽  
Cost Of Energy ◽  
Power Enhancement ◽  
Solar Photovoltaic System ◽  
The Cost ◽  
Change Material

The intermittent nature of renewable sources, such as solar and wind, leads to the need for a hybrid renewable energy system (HRES) that can provide uninterrupted and reliable energy to a remote and off-grid location with the use of a biogas generator and battery. In the present study, conventional PV panels have been integrated with phase change material (PCM) for power enhancement. In addition, various configurations (i. PV-Wind-Battery system, ii. PV-PCM-Wind-Battery, iii. PV-Wind-Biogas-Battery and iv. PV-PCM-Wind-Biogas-Battery) have been compared for the hot and humid climatic location of Chennai, India. Optimization has been carried out to minimize the cost of energy and the net present cost has also been computed. It has been found that the integration of PCM with the PV-Wind-Biogas-Battery-based off-grid system results in savings of USD 0.22 million in terms of net present cost and reduces the cost of energy from USD 0.099/kWh to USD 0.094/kWh. Similarly, for another off-grid HRES configuration of PV-Wind-Battery, the integration of PCM results in savings of USD 0.17 million, and reduces the cost of energy from USD 0.12/kWh to USD 0.105/kWh.

scholarly journals Design of Stand-alone Solar-Wind-Hydro Based Hybrid Power System: Case of Rural Village in Malawi

2019 ◽  
pp. 1-16
Author(s):  
Sylvester W. Chisale ◽  
Zaki Sari
Keyword(s):  
Hybrid System ◽  
Peak Load ◽  
Energy System ◽  
Water Levels ◽  
Design Flow ◽  
Discharge Data ◽  
Electricity Grid ◽  
System Combination ◽  
Hybrid Renewable Energy System ◽  
Cost Of Energy

Malawi has current electrification rate of less than 10% for a population of 18 million connected to the grid. The electricity generation company in Malawi (EGENCO) is greatly affected by low water levels making it difficult to satisfy the existing demand of electricity. This makes it difficult for Malawi to extend its National electricity grid. Thus, the aim of the study is to design stand-alone hybrid renewable energy system which is economically and technically feasible with focus on hydropower, wind, solar and battery bank within Dwangwa area. The study area is estimated to have 420 households, commercial and public service load with primary load demand of 5,556.31 kWh/day and peak load of 302.93 kW. River discharge data were collected from ministry of irrigation and water development while solar and wind data were collected from NASA. HOMER modeling tool was used to design a stand-alone system. From simulation results, the best design flow for Dwangwa river is 159 L/s at elevation of 100 metres and the best hybrid system combination was hydropower-wind-solar-battery and converter. The whole hybrid system initial capital cost was $2,662,638 while Net present cost (NPC) and levelized cost of energy (LCOE) were $3,597,197 and $0.134/kWh respectively. However, the cost of electricity in Malawi on the grid is K88.02/kWh ($0.11/kWh) which makes the system expensive. Therefore, the study has shown that the hybrid system is not economically viable. However, Government intervention can help to make the system monetarily acceptable and viable.

Modeling of a Hybrid Energy System Integrated With an Intermittent Power Grid in Developing Countries

2014 ◽  
Author(s):  
Kehinde Oke ◽  
Olumide Bello ◽  
Landon Onyebueke
Keyword(s):  
Developing Countries ◽  
Load Capacity ◽  
Power Grid ◽  
Research Work ◽  
Critical Factor ◽  
Noise Pollution ◽  
Energy System ◽  
Hybrid Energy System ◽  
Hybrid Energy ◽  
Cost Of Energy

Electricity in most developing countries is inefficient, erratic and unreliable. Recent research work on grid-connected hybrid system in developing countries have not considered frequent electricity outage hours per month experienced by consumers. Effort is made to address this critical factor and HOMER software was used to model an intermittent power grid integrated with a hybrid energy system. This shortcoming is addressed by assuming generator component in HOMER to run as grid. This is made possible after some modification to fuel content, minimum load capacity ratio and scheduling capacity of the generator. A city in Nigeria was used to demonstrate this approach, but it can be replicated for any location in developing countries where there is frequent electricity outage. Outcome of the model shows that integrating an intermittent power grid with a hybrid energy system offers a competitive cost of energy, reduction in noise pollution and improved use of renewable energy for electricity generation in developing countries.

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