scholarly journals Development of a Prototype for Monitoring Photovoltaic Self-Consumption Systems

Electronics ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 67 ◽  
Author(s):  
Catalina Rus-Casas ◽  
Gabino Jiménez-Castillo ◽  
Juan Domingo Aguilar-Peña ◽  
Juan Ignacio Fernández-Carrasco ◽  
Francisco José Muñoz-Rodríguez
Keyword(s):  
Power Generation ◽  
Fossil Fuel ◽  
Renewable Energy Sources ◽  
Data Acquisition System ◽  
Meteorological Conditions ◽  
Monitoring Systems ◽  
Iot Platform ◽  
The World ◽  
Consumption System ◽  
Comparison Of The Results

Currently, the increasing energy consumption around the world and the environmental impact resulting from the use of fossil fuel-based energy have promoted the use of renewable energy sources such as photovoltaic solar energy. The main characteristic of this type of energy is its unpredictability, as it depends on meteorological conditions. In this sense, monitoring the power generation of photovoltaic systems (PVS) in order to analyze their performance is becoming crucial. The purpose of this paper is to design a monitoring system for a residential photovoltaic self-consumption system which employs an Internet of Things (IoT) platform to estimate the photovoltaic power generation according to solar radiation and temperature. The architecture of the developed prototype will be described and the benefits of providing the use of IoT for monitoring will be highlighted, since all data collected by the data acquisition system (DAS) may be stored in the Cloud. The comparison of the results with those of other monitoring systems was very positive, with an uncertainty that complies with the IEC61724 standard.

Strategic low-cost energy investment opportunities and challenges towards achieving universal access (SDG7) in each African nation

2022 ◽  
Author(s):  
Ioannis Pappis
Keyword(s):  
Power Generation ◽  
Fossil Fuel ◽  
Universal Access ◽  
Renewable Energy Sources ◽  
Electricity Consumption ◽  
Green Energy ◽  
Total System ◽  
Energy Investment ◽  
African Nation ◽  
Energy Mix

Abstract Strategic energy planning to achieve universal access and cover the future energy needs in each African nation is essential to lead to effective, sustainable energy decisions to formulate mitigation and adaptation climate change policy measures. Africa can not afford a cost-increasing green energy transition pathway towards achieving SDG7. In this analysis, least-cost power generation investment options using energy systems analysis enhanced with geospatial data for each African nation are identified, considering different levels of electricity consumption per capita (Low, High) and costs of renewables (New Policies, Renewable Deployment scenarios). The power generation capacity needs to increase between 211GW (NPLs) and 302GW (RDHs) during 2021-2030 to achieve SDG7 in Africa, leading to electricity generation to rise between 6,221PJ (NPLs) - 7,527PJ (NPHs) by 2030. Higher electricity consumption levels lead to higher penetration of fossil fuel technologies in the power mix of Africa. To achieve the same electricity demand levels, decreasing renewables' costs can assist in a less carbon-intensive power system, although higher capacity is needed. However, Africa is still hard to achieve its green revolution. Depending on the scenario, grid-connected technologies are estimated to supply approximately 85%-90% of the total electricity generated in Africa in 2030, mini-grid technologies roughly 1%-6%, and stand-alone technologies 8%-11%. Solar off-grid and solar hybrid mini-grid technologies play an essential role in electrifying the current un-electrified settlements in residential areas. Natural gas will be the dominant fossil fuel source by 2030, while the decreasing costs of renewables make solar overtake hydropower. Higher penetration of renewable energy sources in the energy mix creates local jobs and increases cost-efficiency. Approximately 6.9 million (NPLs) to 9.6 million (RDHs) direct jobs can be created in Africa by expanding the power sector during 2020-2030 across the supply chain. Increasing the electricity consumption levels in Africa leads to higher total system costs, but it is estimated to create more jobs that can ensure political and societal stability. Also, the decreasing costs of renewables could further increase the penetration of renewables in the energy mix, leading to a higher number of jobs.

scholarly journals Solar Air Heating Collectors in two Modular Solar Panels built into a "Do-It-Yourself" type project

2015 ◽  
Vol 9 (2) ◽  
pp. 26-33
Author(s):  
Dragos Cornea ◽  
Ciprian Bulei ◽  
Mihai Todor ◽  
Imre Kiss
Keyword(s):  
Renewable Energy ◽  
Fossil Fuel ◽  
Renewable Energy Sources ◽  
Heating System ◽  
Solar Panels ◽  
Air Heating ◽  
The World ◽  
Science Labs ◽  
Do It Yourself ◽  
Aluminum Cans

These days, people have been talking a lot about renewable energy. The world is growing too dependent on non-renewable energy, such as fossil fuel, natural gas, oil and coal. There needs to be another idea to be green and environmentally friendly. And with the use of renewable energy source, the world can be a better place. These renewable energy sources can be used for hundreds of years without hurting the environment. There has been much research going on in science labs and farms across the country, so these sources are always evolving into better and better things. The sources are almost limitless, but there are some common ones. The most widely used heating installations in current technologies are based on burning fossil fuel but we should take in consideration that health policies nowadays are directed towards lowering the use of this kind of fuel. This paper presents the processes of designing and development of a heating system that uses entirely solar energy. The heating system consists of two parts. The first part consists of a photovoltaic solar panel made from 36 photovoltaic cells capable of developing 65 W and 3.6 A. The second part is made of recycled materials (aluminum cans), forming radiant tubes.

Sequential Experiences in Energy Producing Landscapes

2015 ◽  
pp. 230-251
Author(s):  
Ian D. Bishop
Keyword(s):  
Power Generation ◽  
Fractal Dimension ◽  
Renewable Energy Sources ◽  
Wind Power Generation ◽  
Energy Sources ◽  
Zipf Distribution ◽  
The World ◽  
Key Variables ◽  
Visual Impact ◽  
Case Basis

Wind turbines are a major presence in the landscapes of some countries. This presence will become more widespread across the world as the need to reduce coal dependence becomes more broadly accepted. This chapter uses the situation of the state of Victoria in southern Australia to explore the possible extent of landscape change under a move to 100% renewable energy sources, and to explore the key variables and tools for analysis and communication, which will identify the consequences and support planning. A scenario for a future level of wind power generation in Victoria is proposed, potential sites identified, and then the visual impact of these analyzed, not simply on a case-by-case basis but as a system of facilities across the landscape. People travelling by road, or train, will be particularly aware of the extent to which the change is pervasive and new analytical parameters, such as Zipf distribution and fractal dimension, are illustrated. New policy approaches and modes of impact communication are proposed.

scholarly journals Wind and Solar Energy Resources Potential across Coastal Mega Cities, of Pakistan

2019 ◽  
Vol 8 (2S8) ◽  
pp. 1895-1902 ◽  
Keyword(s):  
Power Generation ◽  
Wind Speed ◽  
World Bank ◽  
Fossil Fuel ◽  
World Bank Group ◽  
The World Bank ◽  
Wind Potential ◽  
The World ◽  
Bank Group ◽  
Coastal Megacity

Pakistan has the vast potential of renewable energy (RE) resources but still, rely on the pricy fossil fuel-based power generation. The developed nation work on the shifting of conventional resources based generation into renewable energy-based generation, but Pakistan still engages to negotiate fossil fuel trade. However, Pakistan has 1100Km of the coastal belt that acquires the huge potential of RE. The different metrological department measure the RE exists in Pakistan, the World Bank Group is one of them. The World Bank group observe the solar and wind potential across the megacity of Pakistan including Karachi. In this research, we have explored the World Bank efforts by highlighting the availability of the solar and wind power across coastal megacity, of Pakistan. The main focus is on the estimates of global horizontal irradiation (GHI) parameter of solar and wind speed for wind resources along with the yearly values provided by the World Bank. The wind power depend on wind speed across so, in this research, the wind speed is observed across the coastal megacity of Pakistan for the wind turbine installation. The wind speed data is occupied from the World Bank site to explore wind model for the future power supply across Karachi of Pakistan. Similarly, the solar irradiation calculation is very much important to install solar models. So we have select the GHI for the solar observation across Karachi of Pakistan. The GHI data is taken from the World Bank site and exploring on excel to find the future power generation across coastal megacity of Pakistan. Both wind speed and GHI parameter are observed by a yearly basis. It is detected that the regular trend for each of the selected years is related to the next year so the perceived trend of GHI and wind speed is valid for the upcoming year. Hence the GHI and wind speed availability indicate the installation of solar penal and wind turbine for the power generation across the coastal megacity of Pakistan. The GHI and wind speed experimental data for the coastal megacity contain a huge amount of solar and wind potential. The planner needs to explore this energy by installing a suitable quantity of the solar plant and windmills for power generation.

Sequential Experiences in Energy Producing Landscapes

2019 ◽  
pp. 1831-1853
Author(s):  
Ian D. Bishop
Keyword(s):  
Power Generation ◽  
Fractal Dimension ◽  
Renewable Energy Sources ◽  
Wind Power Generation ◽  
Energy Sources ◽  
Zipf Distribution ◽  
The World ◽  
Key Variables ◽  
Visual Impact ◽  
Case Basis

Wind turbines are a major presence in the landscapes of some countries. This presence will become more widespread across the world as the need to reduce coal dependence becomes more broadly accepted. This chapter uses the situation of the state of Victoria in southern Australia to explore the possible extent of landscape change under a move to 100% renewable energy sources, and to explore the key variables and tools for analysis and communication, which will identify the consequences and support planning. A scenario for a future level of wind power generation in Victoria is proposed, potential sites identified, and then the visual impact of these analyzed, not simply on a case-by-case basis but as a system of facilities across the landscape. People travelling by road, or train, will be particularly aware of the extent to which the change is pervasive and new analytical parameters, such as Zipf distribution and fractal dimension, are illustrated. New policy approaches and modes of impact communication are proposed.

Remarks by Kevin D. Mohr

2020 ◽  
Vol 114 ◽  
pp. 11-22
Author(s):  
Kevin D. Mohr ◽  
Gabriela Alvarez Avila ◽  
Carlos Solé ◽  
Kasturi Das
Keyword(s):  
World Economy ◽  
Fossil Fuels ◽  
Dispute Settlement ◽  
Fossil Fuel ◽  
Renewable Energy Sources ◽  
Climate Scenarios ◽  
Fuel Production ◽  
Worst Case ◽  
Hydrocarbon Production ◽  
The World

The title of our panel promises to explore whether investor-state dispute settlement (ISDS) is a barrier, a facilitator, or neither regarding the global fight against climate change. This is an issue of urgent concern because there is a growing consensus that the world economy needs to transition away from fossil fuels aggressively to avoid the worst case climate scenarios, which would require a massive flow of investment out of fossil fuel production and into the production of renewable energy sources (RES). Broadly speaking, state policymakers have two sets of tools at their disposal to encourage that transition: (1) tools to encourage investment in RES (carrots); and (2) tools to discourage investment and hasten divestment in hydrocarbon production (sticks). One way to frame the question is whether the ISDS system—designed as it is to protect foreign investment in a largely policy-neutral way—acts more as a facilitator of carrot-side policies, more as a barrier to stick-side policies, or neither? Put somewhat differently, does a strong ISDS system that would facilitate RES investment necessarily cause regulatory chill of stick-side policies aimed at divestment from fossil fuels, or is there a way to harmonize these seemingly divergent goals?

Power Electronics for Grid Integration of Wind Power Generation System

2016 ◽  
Vol 9 ◽  
pp. 10 ◽  
Author(s):  
Michael S Okundamiya
Keyword(s):  
Power Generation ◽  
Wind Energy ◽  
Power Electronics ◽  
Wind Power ◽  
Renewable Energy Sources ◽  
Wind Power Generation ◽  
Generation System ◽  
Electricity Grid ◽  
Power Generation System ◽  
Promising Source

The rising demands for a sustainable energy system have stimulated global interests in renewable energy sources. Wind is the fastest growing and promising source of renewable power generation globally. The inclusion of wind power into the electric grid can severely impact the monetary cost, stability and quality of the grid network due to the erratic nature of wind. Power electronics technology can enable optimum performance of the wind power generation system, transferring suitable and applicable energy to the electricity grid. Power electronics can be used for smooth transfer of wind energy to electricity grid but the technology for wind turbines is influenced by the type of generator employed, the energy demand and the grid requirements. This paper investigates the constraints and standards of wind energy conversion technology and the enabling power electronic technology for integration to electricity grid.

scholarly journals A meliorated Harris Hawks optimizer for combinatorial unit commitment problem with photovoltaic applications

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Ayani Nandi ◽  
Vikram Kumar Kamboj
Keyword(s):  
Power Generation ◽  
Power System ◽  
Electric Power ◽  
Unit Commitment ◽  
Renewable Energy Sources ◽  
Electric Power System ◽  
Unit Commitment Problem ◽  
Spinning Reserve ◽  
Commitment Problem ◽  
Sine Cosine Algorithm

AbstractConventional unit commitment problem (UCP) consists of thermal generating units and its participation schedule, which is a stimulating and significant responsibility of assigning produced electricity among the committed generating units matter to frequent limitations over a scheduled period view to achieve the least price of power generation. However, modern power system consists of various integrated power generating units including nuclear, thermal, hydro, solar and wind. The scheduling of these generating units in optimal condition is a tedious task and involves lot of uncertainty constraints due to time carrying weather conditions. This difficulties come to be too difficult by growing the scope of electrical power sector day by day, so that UCP has connection with problem in the field of optimization, it has both continuous and binary variables which is the furthermost exciting problem that needs to be solved. In the proposed research, a newly created optimizer, i.e., Harris Hawks optimizer (HHO), has been hybridized with sine–cosine algorithm (SCA) using memetic algorithm approach and named as meliorated Harris Hawks optimizer and it is applied to solve the photovoltaic constrained UCP of electric power system. In this research paper, sine–cosine Algorithm is used for provision of power generation (generating units which contribute in electric power generation for upload) and economic load dispatch (ELD) is completed by Harris Hawks optimizer. The feasibility and efficacy of operation of the hybrid algorithm are verified for small, medium power systems and large system considering renewable energy sources in summer and winter, and the percentage of cost saving for power generation is found. The results for 4 generating units, 5 generating units, 6 generating units, 7 generating units, 10 generating units, 19 generating units, 20 generating units, 40 generating units and 60 generating units are evaluated. The 10 generating units are evaluated with 5% and 10% spinning reserve. The efficacy of the offered optimizer has been verified for several standard benchmark problem including unit commitment problem, and it has been observed that the suggested optimizer is too effective to solve continuous, discrete and nonlinear optimization problems.

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