scholarly journals Generated Value of Electricity versus Incurred Cost for Solar Arrays under Conditions of High Solar Penetration

Solar ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 4-29
Author(s):  
Adrian B. Boivin ◽  
Jonathan F. Holzman
Keyword(s):  
Supply And Demand ◽  
Electrical Power ◽  
Foreseeable Future ◽  
Electricity Prices ◽  
Solar Arrays ◽  
Industry Standard ◽  
High Penetration ◽  
Best Value ◽  
Economic Analyses ◽  
Solar Penetration

This work considers an emerging value-based paradigm for solar generation under high penetration, in light of its conflicting cycles of supply and demand. The resulting swings in electricity prices, in locales such as California, call into question the aim of optimizing solar arrays solely in terms of accumulated electrical power. Thus, this work studies solar arrays in terms of value, as an accumulated product of electrical power and price, where solar arrays that generate greater electrical power over more profitable early- and late-day hours yield improved value. Experimental, theoretical, and economic analyses are given to characterize the industry-standard angled-panel, an alternative V-groove, and a new U-groove array over a 5-year study. The trends and projections suggest that the industry-standard angled-panel array realizes the best value-based performance at present, although it will likely be outperformed in the foreseeable future by the V-groove array.

MPPT Techniques - A Review

2014 ◽  
Vol 1055 ◽  
pp. 182-187 ◽  
Author(s):  
Sarat Kumar Sahoo ◽  
Mayur Bansal
Keyword(s):  
Power Generation ◽  
Peak Power ◽  
Power Transmission ◽  
Electrical Power ◽  
Solar Array ◽  
Operating Voltage ◽  
Solar Power Generation ◽  
Solar Arrays ◽  
Power Point ◽  
Transmission And Distribution

The use of solar energy is increased now due to its renewable and pollution-free characteristics. The grid connected dc-ac inverters are largely needed for solar power generation which can be used for power transmission and distribution. The electrical power supplied by the solar arrays depends on temperature, isolation and array voltage. It is therefore necessary to adopt MPPT in order to bring the solar array operating voltage near the peak power point. It will help in drawing maximum possible power from the array. This paper presents various techniques used for achieving this target and compares them with each other to know the benefits and drawbacks with each method.Keywords: MPP, P&O, IC, PV, TF.

scholarly journals Single event latch-up detection for nano-satellite external solar radiation mitigation system

2021 ◽  
Vol 10 (1) ◽  
pp. 39-45
Author(s):  
Norsuzila Yaa’cob ◽  
Muhammad Fauzan Ayob ◽  
Noraisyah Tajudin ◽  
Murizah Kassim ◽  
Azita Laily Yusof
Keyword(s):  
Solar Radiation ◽  
Integrated Circuit ◽  
Peak Power ◽  
Electrical Power ◽  
Rechargeable Batteries ◽  
Single Event Upset ◽  
Single Event ◽  
Solar Arrays ◽  
Detection Analysis ◽  
Latch Up

This paper presents the single event latch-up (SEL) detection for nano-satellite external solar radiation mitigation system. In this study, the SEL detection analysis was conducted using circuit test and simulation. An electrical power subsystem (EPS) is a part of all CubeSat bus subsystems and it comprises solar arrays, rechargeable batteries, and a power control and distribution unit (PCDU). In order to extract the maximum power generated by the solar arrays, a peak power tracking topology is required. This may lead to the SEL with the presence of high voltage produced by solar. To overcome the SEL problems, the circuit test and simulation must be done so that the flow of SEL will be easily detected and mitigate. The method that been used are by using microcontroller, the SEL will be created in the certain time. The programable integrated circuit (PIC) are used to mitigate SEL effect. It indicates that, the SEL occur very fast in certain time. When the simulation is conducted by using SPENVIS, the result shows, only single event upset (SEU) was affected on UiTMSAT-1.

scholarly journals VOLTAGE STABILITY OF ELECTRICAL POWER NETWORKS​ WITH HIGH PENETRATION LEVEL OF WIND GENERATION

2020 ◽  
Vol 15 (55) ◽  
pp. 538-545
Author(s):  
Salwa El-Samanoudy ◽  
El-Said Osman ◽  
Mohamed El-Said ◽  
Mohamed El-Shaer
Keyword(s):  
Voltage Stability ◽  
Electrical Power ◽  
Wind Generation ◽  
Power Networks ◽  
High Penetration

scholarly journals Market Impacts Of Bovine Somatropin: A Supply And Demand Analysis

1992 ◽  
Vol 24 (1) ◽  
pp. 271-282
Author(s):  
Harry M. Kaiser
Keyword(s):  
Dairy Products ◽  
Supply And Demand ◽  
Demand Analysis ◽  
Bovine Somatotropin ◽  
Milk Supply ◽  
Government Purchases ◽  
Market Impacts ◽  
National Model ◽  
Potential Demand ◽  
Economic Analyses

AbstractThe potential economic impacts of the introduction of bovine somatotropin (bST) on U.S. milk supply and demand are analyzed using a national model of Class I and Class II milk markets. The results indicate that the introduction of bST will lead to lower milk prices, higher milk production, and larger government purchases of dairy products. Unlike previous economic analyses of bST, this analysis considers both supply and demand effects of bST. The implication is that studies that ignore potential demand-side effects may produce misleading results.

scholarly journals Marginal Uncertainty Cost Functions for Solar Photovoltaic, Wind Energy, Hydro Generators, and Plug-In Electric Vehicles

Energies ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 6375
Author(s):  
Elkin D. Reyes ◽  
Arturo S. Bretas ◽  
Sergio Rivera
Keyword(s):  
Power Systems ◽  
Wind Energy ◽  
Electric Vehicles ◽  
Smart Grids ◽  
Electrical Power ◽  
Energy Generation ◽  
Cost Functions ◽  
Solar Photovoltaic ◽  
Electrical Power Systems ◽  
High Penetration

The high penetration of renewable sources of energy in electrical power systems implies an increase in the uncertainty variables of the economic dispatch (ED). Uncertainty costs are a metric to quantify the variability introduced from renewable energy generation, that is to say: wind energy generation (WEG), run-of-the-river hydro generators (RHG), and solar photovoltaic generation (PVG). On other side, there are associated uncertainties to the charge/uncharge of plug-in electric vehicles (PEV). Thus, in this paper, the uncertainty cost functions (UCF) and their marginal expressions as a way of modeling and assessment of stochasticity in power systems with high penetration of smart grids elements is presented. In this work, a mathematical analysis is presented using the first and second derivatives of the UCF, where the marginal uncertainty cost functions (MUCF) and the UCF’s minimums for PVG, WEG, PEV, and RHG are derived. Further, a model validation is presented, considering comparative test results from the state of the art of the UCF minimum, developed in a previous study, to the minimum reached with the presented (MUCF) solution.

scholarly journals Adaptable Source-Grid Planning for High Penetration of Renewable Energy Integrated System

Energies ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 3304
Author(s):  
Ming Tang ◽  
Jian Wang ◽  
Xiaohua Wang
Keyword(s):  
Renewable Energy ◽  
Network Structure ◽  
Supply And Demand ◽  
Integrated System ◽  
Planning Stage ◽  
Expansion Planning ◽  
High Penetration ◽  
Supply Capacity ◽  
Grid Planning ◽  
The Impact

To adapt to the growing scale of renewable energy and improve the consume ability of the power system, it is necessary to design a highly adaptable planning scheme for high penetration of the renewable energy integrated system. Thus, this paper firstly gives the conception of system adaptability and designs an adaptability index system, which considers the supply and demand balance, operation state, and network structure of the high penetrated renewable energy integrated system. It can help to comprehensively evaluate the system ability towards uncertain shocks. Then, a two-stage source-grid coordinative expansion planning model is presented. The adaptability indexes of supply and demand balance are used as objection of the source planning stage, the adaptability indexed of the operation state and network structure are used to guide the grid planning stage. The model is further solved based on the coordination between the source and grid planning stage. Finally, the case study verifies that the obtained optimal plan has good adaptability to the impact of renewable energy on the power supply capacity and security operation.

Solution to Pakistan Electrical Power Crisis

2008 ◽  
Author(s):  
Sajjad Akbar ◽  
Shahab Khusnood
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Private Sector ◽  
Nuclear Power ◽  
Power Plants ◽  
Supply And Demand ◽  
Electrical Power ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Private Power

Electricity is the engine for the growth of economy of any country. Total installed electricity generation capacity of Pakistan is presently approx 20,000 MW as given in Table-1. Despite this, almost 40% of the population is without electricity. Pakistan has been blessed with tremendous resources for electrical power generation with hydel, coal, renewable energy resources and Nuclear power. Hydel, coal potential of more than 40,000 MW and 10,000 MW are available but only 15% of hydroelectric potential has been harnessed so for where as only 150 MW power plant on indigenous coal has been set up. To exploit Pakistan hydel and coal resources for power generation large investments are needed which Pakistan economy can not afford. Govt. of Pakistan has created an organization of private power and infrastructure board (PPIB) to facilitate private sector in the participation of power generator. PPIB is tapping the resources and facilitating the private sector for establishment of power projects. Pakistan is collaborating with China for establishment of Nuclear Power Plants and plan to generate up to 10,000 MW by year 2025. Renewable energy resources are also required to be tapped. This paper will focus on the Pakistan power generation potential by utilizing local resources keeping in view the next 20 year supply and demand position.

scholarly journals Can Japan Meet Its 2030 Nuclear Power Target?

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Romain Zissler ◽  
Jeffrey S. Cross
Keyword(s):  
Electricity Generation ◽  
Nuclear Power ◽  
Greenhouse Gas Emission ◽  
Supply And Demand ◽  
Electrical Power ◽  
Fiscal Year ◽  
Low Carbon ◽  
Safety Standards ◽  
Net Zero ◽  
Term Energy

The 2010s marked a turning point in Japan’s nuclear power’s industry. In fiscal year 2010, nuclear power electricity generation stood at 288.2 terawatt-hours. In 2011, the Great East Japan Earthquake triggered a tsunami and a major accident at the Fukushima Daiichi nuclear power plant. In 2014, nuclear power electricity generation eventually bottomed out at 0 terawatt-hour due to the temporary closures of all the reactors. In 2015, Japan’s Government advanced its landmark Long-term Energy Supply and Demand Outlook targeting nuclear power electricity generation to reach 216.8-231.7 terawatt-hours in fiscal year 2030 – granting a key role to this technology in terms of low carbon and stable domestic electricity supply. However, confronted to the challenges of meeting more stringent safety standards, many nuclear reactors have been permanently shut down, and future restarts are unclear. Given this scenario, this paper demonstrates that meeting Japan’s nuclear power 2030 target is unlikely. Furthermore, Japan has recently set a net zero greenhouse gas emission goal by 2050 making decarbonization of its electrical power generation, a future need. Although improvements in energy efficiency and greater deployment of renewable energies are two potential ways to overcome the shortfall, this paper discusses how proposed international electrical interconnections may serve as efficient and economical alternatives to meet nuclear power’s expected shortfall that also addresses climate change mitigation, electricity security strengthening, and resiliency.

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