scholarly journals Photovoltaics: Reviewing the European Feed-in-Tariffs and Changing PV Efficiencies and Costs

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
H. L. Zhang ◽  
T. Van Gerven ◽  
J. Baeyens ◽  
J. Degrève
Keyword(s):  
Electricity Generation ◽  
Photovoltaic System ◽  
Process Efficiency ◽  
Solar Irradiation ◽  
Energy Potential ◽  
Levelized Cost ◽  
Cost Of Energy ◽  
Sustainable Electricity ◽  
Near Future

Feed-in-Tariff (FiT) mechanisms have been important in boosting renewable energy, by providing a long-term guaranteed subsidy of the kWh-price, thus mitigating investment risks and enhancing the contribution of sustainable electricity. By ongoing PV development, the contribution of solar power increases exponentially. Within this significant potential, it is important for investors, operators, and scientists alike to provide answers to different questions related to subsidies, PV efficiencies and costs. The present paper therefore (i) briefly reviews the mechanisms, advantages, and evolution of FiT; (ii) describes the developments of PV, (iii) applies a comprehensive literature-based model for the solar irradiation to predict the PV solar energy potential in some target European countries, whilst comparing output predictions with the monthly measured electricity generation of a 57 m² photovoltaic system (Belgium); and finally (iv) predicts the levelized cost of energy (LCOE) in terms of investment and efficiency, providing LCOE values between 0.149 and 0.313 €/kWh, as function of the overall process efficiency and cost. The findings clearly demonstrate the potential of PV energy in Europe, where FiT can be considerably reduced or even be eliminated in the near future.

scholarly journals Energy Acquisition of Solar-Powered Joint-Wing Aircraft Considering Mismatch Power Loss

Energies ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 157
Author(s):  
Xinzhe Ji ◽  
Kangwen Sun ◽  
Xiao Guo ◽  
Mou Sun
Keyword(s):  
Power Loss ◽  
Estimation Method ◽  
Energy System ◽  
Photovoltaic System ◽  
Solar Irradiation ◽  
Mismatch Loss ◽  
Energy Acquisition ◽  
Time Of Year ◽  
Solar Powered

Solar-powered aircraft can perform long-term flights with clean solar energy. However, the energy derived from solar irradiation is influenced by the time of year and latitude, which limits the energy acquisition ability of solar aircraft with a straight-wing configuration. Hence, unconventional configurations based on increasing wing dihedral to track the sun are proposed to improve energy acquisition at high-latitude regions in winter, which may involve power loss caused by mismatch in the photovoltaic system. However, mismatch loss is seldom considered and may cause energy to be overestimated. In this paper, the energy acquisition characteristics of a joint-wing configuration are presented based on the simulation of an energy system to investigate the mismatch power loss. The results indicate a 4~15% deviation from the frequently used estimation method and show that the mismatch loss is influenced by the curved upper surface, the severity of shading and the circuit configuration. Then, the configuration energy acquisition factor is proposed to represent the energy acquisition ability of the joint-wing configuration. Finally, the matching between the aircraft configuration and flight trajectory is analyzed, demonstrating that the solar-powered aircraft with an unconventional wing configuration is more sensitive to the coupling between configuration and trajectory.

scholarly journals Renewable Energy for Long-Term Growth and Development: Bangladesh Perspective

2021 ◽  
Author(s):  
Taskin Jamal ◽  
Prof Christopher J. Fogwill ◽  
Ashraf Hossain Bhuiyan
Keyword(s):  
Renewable Energy ◽  
Growth And Development ◽  
Electricity Generation ◽  
Energy Systems ◽  
Influential Factor ◽  
Renewable Energy Systems ◽  
Cost Of Energy ◽  
Energy Projects ◽  
The Cost

Abstract Beneficiaries prefer renewable energy-based systems over grid-connected electricity. The cost of energy is viewed as the most influential factor while choosing renewable energy systems. Beneficiaries chose to stay linked with renewa­ble energy systems even when they received grid-connected electricity at a lower tariff.Net-metering and feed-in tariff mechanisms, as well as tax cuts and subsidies for renewable energy projects, could be the catalyst for fostering greater uptake of renewables in the electricity generation mix.

Technoeconomic Study of Wind Energy Potential and Prospects in Oman

2010 ◽  
Author(s):  
Arif S. Malik ◽  
Haitham N. Al-Jabri ◽  
Fahad N. Al-Farsi ◽  
Thani S. Al-Ma’mary ◽  
Mohammed K. Al-Khadhuri
Keyword(s):  
Wind Energy ◽  
Gas Turbines ◽  
Wind Farm ◽  
Economic Cost ◽  
Energy Potential ◽  
Levelized Cost ◽  
Long Run ◽  
Cost Of Energy ◽  
Wind Energy Potential ◽  
Grid Application

This paper reports the study that carried out to find the wind energy potential and prospects in Oman. The results presented here are for three different sites. The first site discussed is for remote non-grid application of wind energy, the second for grid application and the third for wind pump application. The economic comparison for non-grid power applications is made between diesel engine generating sets alone and wind-diesel hybrid system at the selected location. The economic cost of grid system extension is also estimated for comparison purposes. The results show that for non-grid application for the selected site the levelized cost of wind-diesel system is 0.105 $/kWh comparing to 0.148 $/kWh for diesel system alone. For grid power application the study found that installing a 20 MW wind farm in Quiroon Hariti has a levelized cost of energy comparable to long-run marginal cost of open cycle gas turbines. For wind pump application the study found that the total annualized cost of installing wind pumps for irrigating a selected farm in Thumrait without and with one day water storage is $1,368 and $2,067 respectively. The total annualized cost of using a diesel pump for irrigating the same farm is $3,523.

scholarly journals Mapping and Analysis of Initial cost Against Levelized Cost of Energy for Residential PV Rooftoop in Indonesia

2018 ◽  
Vol 67 ◽  
pp. 01024 ◽  
Author(s):  
Riadhi Fairuz ◽  
Eko Adhi Setiawan ◽  
Ikhsan Hernanda
Keyword(s):  
Net Present Value ◽  
Economic Feasibility ◽  
Solar Irradiation ◽  
Solar Pv ◽  
Pv Systems ◽  
Levelized Cost ◽  
Initial Cost ◽  
Cost Of Energy ◽  
The Difference ◽  
The Impact

Future electricity tariffs are expected to increase. To overcome this condition, arise the idea how the residential can generate its own electricity by exploiting the potential of solar energy. However, there are some constraints in its implementation due to the difference of the initial cost and sales from solar PV systems in various region of Indonesia. The purpose of this study is to determine the impact of initial cost on the levelized cost of energy from the system. This study uses the calculation of Levelized Cost of Energy (LCoE) and economic feasibility analysis through the calculation of net present value with net metering scheme. Manado is the most optimal city to implement this system. The initial cost will affect to the LCoE, the high initial cost can be covered by the amount of cash flow generated by the system which has huge solar irradiation potentials.

scholarly journals FPV for Sustainable Electricity Generation in a Large European City

2021 ◽  
Vol 14 (1) ◽  
pp. 349
Author(s):  
Bogdan Popa ◽  
Liana Ioana Vuta ◽  
Gabriela Elena Dumitran ◽  
Irina Picioroaga ◽  
Madalina Calin-Arhip ◽  
...  
Keyword(s):  
Electricity Generation ◽  
Renewable Energy Sources ◽  
Large City ◽  
Investment Project ◽  
Total Energy Consumption ◽  
Large Cities ◽  
Carbon Dioxide Co2 ◽  
Charging Stations ◽  
Sustainable Electricity ◽  
Near Future

There is a huge interest worldwide related to continuously increasing the use of renewable energy sources (RES) for electricity generation. Romania, at this moment, even though it has to attain a share of 30.7% of RES from total energy consumption by 2030, does not have any major investment project of this kind in the near future. Photovoltaic (PV) is one of the most promising technologies, with decreasing prices for PV panels but with the disadvantage of large, needed surfaces. This study presents a solution to install PV panels where there is a need for electricity, in a large city, by using the surface of a reservoir. “Lacul Morii” Reservoir in Bucharest is the choice for the case study. The insolation and the possibility to install floating PV, as well as electricity generation, benefits for water quality and carbon dioxide (CO2) emissions reduction are assessed, and even the installation of charging stations for electric bikes and cars. The results are very promising, and the main conclusion is that, after its realization, the floating photovoltaic (FPV) plant on “Lacul Morii” Reservoir will be a source of clean electricity and a demonstration project on how to benefit from solar energy to produce electricity in large cities where there are reservoirs.

scholarly journals Assessment of Renewable Electricity Policy for Sustainable Electricity Generation in Nigeria

2021 ◽  
Author(s):  
OLANRELE IYABO
Keyword(s):  
Renewable Energy ◽  
Electricity Generation ◽  
Fossil Fuel ◽  
Renewable Electricity ◽  
Political Will ◽  
Energy Efficiency Policy ◽  
Renewable Electricity Generation ◽  
Integration Of Renewables ◽  
Sustainable Electricity

Abstract Nigeria commits to fast track the integration of renewables in electricity generation by enacting a 2015 National Renewable Energy and Energy Efficiency Policy (NREEEP). Thus, this policy briefing assesses the effect of the policy, and other socioeconomic factors, on the deployment of renewable electricity generation. The preliminary findings show that renewable energy policy has little effect in facilitating renewable electricity integration in Nigeria due to lack of political will and its adverse effect evident in the non-implementation of incentives like feed-in-tariffs and a zero import duty waiver. Second, increased fossil fuel consumption impedes the deployment of renewable electricity due to the hydrocarbon endowment and its subsidization. The domestic financial market development in Nigeria does not also support the deployment of renewable electricity that requires long-term finance. It requires a political will to strengthen the legal and institutional framework for a sustainable electricity generation deployment. It is also pertinent to consider the total removal of fossil fuel subsidies for renewable electricity integration.

scholarly journals Evaluation of performance and early degradation of a 180.8 KWP rooftop on a grid-connected photovoltaic system in a Colombian tropical region environment

2021 ◽  
Vol 11 (1) ◽  
pp. 11-20
Author(s):  
Cinthia Audivet ◽  
Elena Romero ◽  
Jesús García ◽  
Ana Fonseca ◽  
Horacio Pinzón ◽  
...  
Keyword(s):  
Electricity Generation ◽  
Business Models ◽  
Climatic Conditions ◽  
Photovoltaic System ◽  
Solar Irradiation ◽  
Tropical Region ◽  
Future Performance ◽  
Degradation Rates ◽  
Specific Degradation ◽  
Early Degradation

The use of renewable energy such as photovoltaic is growing. According to IRENA, these systems are one of the most dynamic generation technologies. The global photovoltaic market has grown rapidly between 2000 and 2016 at an annual average compound rate of 44%, from 0.8 GW to 291 GW. In Colombia, regions with high solar irradiation levels have been identified as emerging markets. The Government's plan is to increase the share of non-conventional energies in the energy matrix from 2% to 8% - 10%. However, the uncertainties associated with technology and sites specific degradation rates make it difficult to calculate accurate electricity generation efficiencies and predicting future performance and material degradation rates, and thus business models exhibit considerable deviations related to the real electricity generation rates. This work studies the performance and early degradation of a 180.8 kWp rooftop on grid connected photovoltaic system, installed in Barranquilla, Colombia. Two methods were used: i) estimation of solar conversion efficiency, and ii) visual inspection. The first method includes a cross analysis of climatic conditions, irradiance levels, and the generated energy downstream the inverters. The second method consists of periodical visual inspections of installed modules to check: discoloration, delamination, busbar corrosion, cracking of solar cell, glass breakage, anti-reflection coating, and solder bond.

The wind energy potential in Kudat Malaysia by considering the levelized cost of energy for combined wind turbine capacities

2020 ◽  
pp. 0958305X2093700
Author(s):  
A Albani ◽  
MZ Ibrahim ◽  
KH Yong ◽  
ZM Yusop ◽  
MA Jusoh ◽  
...  
Keyword(s):  
Wind Energy ◽  
Wind Turbine ◽  
Wind Turbines ◽  
Small Scale ◽  
Energy Potential ◽  
Levelized Cost ◽  
Cost Of Energy ◽  
Wind Energy Potential ◽  
Wind Park ◽  
Utility Scale

This paper presents the wind energy potential at Kudat Malaysia by considering the Levelized cost of energy (LCOE) model for combined wind turbine capacities. The combination of small- and utility-scale wind turbines is the key to the success of the operation of a wind park in the lower wind speed region. In a combination approach, the small-scale wind turbines provide the power required by the utility-scale wind turbines to start the blade rotation. For this reason, the particular closed-form equation was modified to determine the LCOE of a wind park with combined turbine capacities. The modified LCOE model can be used as a basis for setting tariff rates or define the economic feasibility of wind energy projects with combined wind turbine capacities.

scholarly journals Solar Energy Potential in Nepal and Global Context

2014 ◽  
Vol 9 (1) ◽  
pp. 95-106 ◽  
Author(s):  
Krishna R. Adhikari ◽  
Shekhar Gurung ◽  
Binod K. Bhattarai
Keyword(s):  
Annual Variation ◽  
Atmospheric Condition ◽  
Cost Effective ◽  
Energy Resources ◽  
Solar Irradiation ◽  
Energy Potential ◽  
Solar Insolation ◽  
Global Context ◽  
Maximum Value ◽  
Near Future

Solar radiation is the best option and cost effective energy resources of this world from 21st century onwards. In this study monthly, seasonal and annual variation of global solar insolation at Biratnagar, Lukla, Kathmandu, Pokhara, of the year 2007 to 2012, Jumla of the year 2011 to 2012 and Simikot 2011/2012 were carried out. The study has shown the variation of global solar insolation with month, season, year, atmospheric condition, and altitude of the site concerned. The maximum value of monthly, seasonal, and yearly global solar insolation was reported at Jumla whereas the minimum monthly, seasonal, and yearly global solar insolation were observed at Kathmandu. From the observation the abundant solar irradiation in Nepal shows encouraging atmosphere for solar farming venture in near future relating to energy management for Nepal. DOI: http://dx.doi.org/10.3126/jie.v9i1.10675Journal of the Institute of Engineering, Vol. 9, No. 1, pp. 95–106

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