scholarly journals Assessment of Rooftop Solar Power Generation to Meet Residential Loads in the City of Neom, Saudi Arabia

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3805
Author(s):  
Nasser Alqahtani ◽  
Nazmiye Balta-Ozkan

The economic and social development of the Kingdom of Saudi Arabia (KSA) has led to a rapid increase in the consumption of electricity, with the residential sector consuming approximately 50% of total electricity production. The KSA depends largely on non-renewable energy resources, and the government has produced Saudi Vision 2030. This plan aims to lessen the country’s reliance on fossil fuels and reduce associated problems such as air pollution. Saudi Vision 2030 combines renewable energy and new building designs so that, for example, the planned city of Neom will be net zero energy. This study addresses how best to reduce Neom’s reliance on the national grid through rooftop photovoltaic generation in residential buildings. The study develops a techno-economic model of rooftop PV with battery storage suitable for existing residential building types likely to be built in Neom city (villas, traditional houses, and apartments), and assesses the optimal PV size, battery storage capacity, and optimal orientation of the PV panels. The study used HOMER Pro to compute the Net Present Cost, Levelized Cost of Energy, orientation of PV panels, and optimum PV system size. The optimal size of PV system is 14.0 kW for the villa, 11.1 kW for the traditional dwelling, and 10.3 kW for the apartment, each with a single battery of capacity 12 kWh.

2020 ◽  
Vol 4 (2) ◽  
pp. 157-165
Author(s):  
Kameran Ali ◽  
Dana Hameed ◽  
Salar Qadir

The Iraqi Kurdistan region has significant potential for implementing solar energy with an average annual rate of 5.245 kWh/m2. However, most of its energy supply currently comes from nonrenewable energy sources. With the continually increasing demand for energy, an alternative energy-generation technique is required. Among the various renewable energy resources, generating electricity directly from sunlight is the best option because it can be applied by the average household and is environmentally friendly. In this study, a cost and environmental analysis for a 10 kW grid-connected photovoltaic system is presented for a government building with the aim of reducing the load demand on the grid during weekdays and also to inject the generated power into the power grid during weekends. A simulation of the proposed PV system was generated by using Photovoltaic Geographic Information System software to estimate the system’s production performance. The software showed that the highest energy production was 1,660 kWh, which occurred in August; the total electricity production was 16,184 kWh over a 1-year period. The study also showed that the geographical location of Darbandikhan City is quite sufficient for generating electric power from solar energy. It further showed that it can reduce CO2 emissions by 356.60 tons during its lifetime when compared with a gasoline generator and by 131.38 tons when compared with that of a natural gas generator. The proposed system could serve as a good revenue source for the government by exporting the generated electricity to the grid while at the same time serving as motivation for households in the region; furthermore, this system can also be applied to other governmental offices in Kurdistan to generate some or all of its energy needs.


Author(s):  
Rima H BinSaeed

Kingdom of Saudi Arabia with its developed economy and advanced technological infrastructure has shown a major progress in business opportunities for overseas investors. Saudi Arabia’s education sector is one of the most attractive investment opportunities for the foreign investors Earlier in 2019, 9 new foreign education enterprises were granted investor licenses, amounting to a total of $141mn of investment deals. The Saudi government introduced Saudi Vision 2030, an aspiring development plan that foresees vital prospects for foreign investors in the regions of education, housing, health and energy, amongst others. In 2016, Saudi Arabia permitted the procurement of 100% of assets by foreign investors in retail and wholesale trade. A privatisation program has also been introduced. The government also attempts to attract FDI in the regions of renewable energy and entertainment. A foreign direct investment (FDI) plays a vital role in local and international economy. Several opportunities and ventures are encouraged by Saudi Arabia to improve the standard of business and economical environments. To accomplish the finances for the projects SAGIA, the lawful authority is there to smooth the progress of investments, which encourages Saudi FDI prospective to grow simultaneously. FDI has a greater scope for diverse businesses and investing in to underdeveloped industrial sectors. FDI plays an important role in boosting the economy of Saudi Arabia by managing international investors who shares the huge portion of 34% in General GDP (Gross domestic product) of Saudi Arabia. This paper aims to review the literature to shed light on the steps taken by the government to increase FDI in the country and what are the current trends that are helping to fulfil VISION 2030.


2021 ◽  
Vol 19 ◽  
pp. 205-210
Author(s):  
Milan Belik ◽  

This project focuses on optimisation of energy accumulation for various types of distributed renewable energy sources. The main goal is to prepare charging – discharging strategy depending on actual power consumption and prediction of consumption and production of utilised renewable energy sources for future period. The simulation is based on real long term data measured on photovoltaic system, wind power station and meteo station between 2004 – 2021. The data from meteo station serve as the input for the simulation and prediction of the future production while the data from PV system and wind turbine are used either as actual production or as a verification of the predicted values. Various parameters are used for trimming of the optimisation process. Influence of the charging strategy, discharging strategy, values and shape of the demand from the grid and prices is described on typical examples of the simulations. The main goal is to prepare and verify the system in real conditions with real load chart and real consumption defined by the model building with integrated renewable energy sources. The system can be later used in general installations on commercial or residential buildings.


2019 ◽  
Vol 12 (1) ◽  
pp. 156
Author(s):  
Chukwuma Leonard Azimoh ◽  
Charles Mbohwa

Electricity challenge in Nigeria is such that only a dramatic increase in both generation and distribution capacity could leapfrog it out of the situation. Reports show that about 61% of the population have access to electricity, and those that do have are currently grappling with epileptic supply. The power network has installed capacity of about 12.5GW whereas the distribution network has capacity for about 6 GW, and often only about 4.5 GW is available to the consumers. Shortfalls are often met with private generations using diesel generators, resulting in noise and environmental pollution with the attendant health consequences. Frightfully so, the challenge is further exacerbated by the burgeoning population. Nevertheless, the government have set an ambitious target for increasing electricity access in VISION 2030 national development plan. A major milestone of this policy is the audacious ambition to increase the existing grid capacity to 30 GW, with 30% of the mix coming from low carbon technology sources. This study explores the use of available renewable energy resources at eleven locations in different regions of the country for optimal generation of energy in contribution to the Nigerian energy matrix. The study was conducted using HOMER™ and Power BI models. Four energy sources were investigated comprising of solar, wind, hydro and diesel. Our findings show that most places in the southern and middle belt parts of the country support mini-grid systems but are more receptive to grid extension, while a majority of the locations in the north are more environmentally friendly to the implementation of mini-grids. In addition, most places investigated in the south, solar technology contributes more than 80% to the energy mix, meanwhile, most northern locations despite having higher solar irradiation are better suited for wind technology with above 60% contribution to the fold.


10.29007/848q ◽  
2019 ◽  
Author(s):  
Mohammed O. Alannsary ◽  
Yasser M. Hausawi

Cloud computing is a relatively mature and robust technology that has promised its users with several proven advantages, such as cost reduction, immediate scalability, and resource sharing. The Cloud is built based on providing resources as services, such as providing Infrastructure, Platform, and Software as a Service. Such approach enables Cloud users to access these services based on their demand. In the government sector of Saudi Arabia, adoption and utilization of the Cloud is minimal. Despite being adopted officially, the Cloud has not been yet implemented properly. In our work we introduce how the government sector in Saudi Arabia can adopt and implement a Cloud Solution through utilizing its services and while considering issues related to its security.


Energies ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 6169
Author(s):  
Ashish Kumar Singhal ◽  
Narendra Singh Beniwal ◽  
Khalid Almutairi ◽  
Joshuva Arockia Dhanraj ◽  
Ali Mostafaeipour ◽  
...  

The world is moving towards the generation of electricity with renewable energy sources (RES) due to the deterioration of the green environment and trying to replace non-renewable energy resources. The real-time results are achieved with the help of an arm controller, having good controller efficiency with the Waijung toolbox, compatible with MATLAB using STM32ST-link utility. In this paper, the authors are focused on areas such as easy to implement controller efficiency, and real-time solutions for modified direct-control perturbation & observation (DC-P&O) technique based on 32- bit ARM Cortex microcontroller (STM32F407VGT6) with embedded programming using Waijung blocksets, which offers very expected outcomes of the problem to make the stand-alone system efficient with fast-tracking. The observation setup is tested with a 40-watt photovoltaic (PV) panel with resistive load for achieving its stability. The designed algorithm enhances the efficiency of the controller by 84.48% for the real-time parameters of the PV panel at maximum power point (MPP) for a 57% duty ratio.


Author(s):  
Michael H. Fox

Renewable energy from the sun—which includes solar, wind, and water energy— can meet all of our energy needs and will allow us to eliminate our dependence on fossil fuels for electricity production. At least, that is the “Siren song” that seduces many people. Amory Lovins, the head of the Rocky Mountain Institute, has been one of the strongest proponents of getting all of our energy from renewable sources (what he calls “soft energy paths”) (1) and one of the most vociferous opponents of nuclear power. A recent article in Scientific American proposes that the entire world’s needs for power can be supplied by wind, solar, and water (2). Is this truly the nirvana of unlimited and pollution-free energy? Can we have our cake and eat it, too? Let’s take a critical look at the issues surrounding solar and wind power. Let me be clear that I am a proponent of solar energy. I built a mountain cabin a few years ago that is entirely off the grid. All of the electricity comes from solar photovoltaic (PV) panels with battery storage. The 24 volt DC is converted to AC with an inverter and is fed into a conventional electrical panel. It provides enough energy to power the lights, run a 240 volt, three-quarter horsepower water pump 320 feet deep in the well, and electrical appliances such as a coffee pot, toaster, and vacuum cleaner. But I am not implying that all of my energy needs come from solar. The big energy hogs—kitchen range, hot water heater, and a stove in the bedroom—are all powered with propane. Solar is not adequate to power these appliances. In 2010 I also had a 2.5 kW solar PV system installed on my house that ties into the utility grid. When the sun is shining, I use the electricity from the solar panels, and if I use less than I generate, it goes out on the grid to other users. If it does not produce enough for my needs, then I buy electricity from the grid.


2016 ◽  
Vol 839 ◽  
pp. 130-135
Author(s):  
Ivan Tendo ◽  
Chatchai Sirisamphanwong

In this research paper, an illustration for system size optimization for a stand-alone PV – diesel hybrid system is obtained. The requirement is to obtain an optimal size that can meet energy demand at an optimized cost for a given lifetime period of the project, this will be achieved using HOMER software to further improve the system parameters like performance ratio, renewable energy fraction, MATLAB will be used. This research study will be done basing on a system currently installed at the School of Renewable Energy, Naresuan University (SERT), this system has a capacity of 120 kW, and it is a hybrid system with PV array, Diesel generator and battery storage system. The cost parameters that will be addressed are; - Net present cost (NPC), Cost of Energy (COE), Capital cost (CC). The initial size of the hybrid system is PV-120kW, Diesel generator -100kW and battery storage of 200kWh after modelling and simulation with HOMER software using special models to show the predicted performance of the final outcome, the optimal size created has a PV size of 100kW, diesel generator with a size of 100kW and battery storage of 100kWh and compared to the initial system COE od 1.01$/kWh, the optimal size has a COE of 0.934$/kWh.


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