scholarly journals EDITORIAL

2012 ◽  
Vol 11 (1-2) ◽  
pp. 02
Author(s):  
J. V. C. Vargas
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Oil And Gas ◽  
Photovoltaic Performance ◽  
Proton Exchange ◽  
Solar Panels ◽  
The Us ◽  
Efficiency Increase ◽  
Computer Processor ◽  
Oil And Gas Sector

Around the end of the twentieth century, nanotechnology appeared to be the new breakthrough, after the internet, for example. At that time, more efficient and affordable solar cells, green chemistry, quantum computing, lightweight composite aircraft, cell-size robots for medical applications were expected to be available soon. When the financial milestones did not become real, investors got disappointed and decided to rethink their plans. Yet today the perspectives are surprisingly upbeat. Currently, it is well known that restructuring matter at the nanoscale chemical and thermophysical properties change, so that systems that have no purpose at the macroscale, at the nanoscale become useful. In fact, several applications have already begun to appear such as in the oil and gas sector components, structured coatings, nanofluids, new cancer treatment drugs, and nanoviricides. Computer processor and memory manufacturers are already producing products with 32 nanometer components, so that the first commercial memristor (memory resistor) is expected to be launched at the end of 2013. In the renewable energy area, just to cite a few examples, low energy consumption nanostructured inexpensive LEDs are being developed to potentially last for years, carbon nanotubes have been used to drastically reduce precious materials content in proton-exchange fuel cell (PEMFC) electrodes and increase efficiency, and nanostructured thin films are being developed to boost photovoltaic performance and reduce costs, which demonstrated a 23.5 % efficient flexible solar panel operating a 2 MW pilot line at the National Renewable Energy Laboratory in the US. In comparison to market available 10 % efficient solar panels, this is a remarkable efficiency increase in capturing solar energy for practical use due to nanotechnology. This nanotechnological achievement challenges scientists to possibly change the currently fuel (fossil and bio) energy driven world into a solar energy driven one.

scholarly journals Konsep Fotovoltaik Terintegrasi On Grid dengan Gedung STT-PLN

2019 ◽  
Vol 11 (1) ◽  
pp. 17-26
Author(s):  
Aas Wasri Hasanah ◽  
Rinna Hariyati ◽  
Muchamad Nur Qosim
Keyword(s):  
Solar Energy ◽  
21St Century ◽  
Oil And Gas ◽  
Performance Ratio ◽  
Industrialized Countries ◽  
Solar Panels ◽  
Radiation Distribution ◽  
Efficiency Increase ◽  
A Performance

Entering the 21st century, oil and gas supplies are running low. While the need for energy is increasing, especially in industrialized countries, it will increase to 70% between 2000 and 2030. In 2017, the electricity needs will reach 25.4 trillion kWh. Solar energy that can be generated for the entire Indonesian mainland which has an area of ​​± 2 million km2 with a radiation distribution of 4.8 kWh/m2/day is 5.10 mW, equivalent to 112,000 gWp. In terms of technique in totality it can be said that it is feasible to operate, solar panels have an efficiency increase of 17.4%. In terms of components and regional quality that will be absorbed by PLTS and synchronized by KWH EXIM, from calculations with a performance ratio yielding 81%, so the system is technically said to be feasible to be realized.

scholarly journals New Glycerol Upgrading Processes

Catalysts ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 103
Author(s):  
Miguel Ladero
Keyword(s):  
Renewable Energy ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Oil And Gas ◽  
The Other ◽  
Energy Policies ◽  
Gas Recovery ◽  
The Us ◽  
The Eu

Energy policies in the US and in the EU during the last decades have been focused on enhanced oil and gas recovery, including the so-called tertiary extraction or enhanced oil recovery (EOR), on one hand, and the development and implementation of renewable energy vectors, on the other, including biofuels as bioethanol (mainly in US and Brazil) and biodiesel (mainly in the EU) [...]

Solar Concentrators

2019 ◽  
pp. 1-38
Author(s):  
Bekhruzi Talbi Shokhzoda ◽  
Mikhail Georgievich Tyagunov
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Large Scale ◽  
Scale Production ◽  
Cell Area ◽  
Solar Panels ◽  
Solar Concentrators ◽  
Large Scale Production ◽  
History Of ◽  
The Cost

Looking at the history of solar energy and renewable energy in general, the authorities and scientists have been paying much attention to the recent period, due to the depletion of fossil energy resources and the growing difficulties in solving environmental problems. The development of solar energy has led to the use of solar energy concentrators. Concentrators are used to concentrate sunlight onto PV cells. This allows for a reduction in the cell area required for producing a given amount of power. The goal is to significantly reduce the cost of electricity generated by replacing expensive PV converter area with less expensive optical material. In this chapter, the authors talk about concentrators in solar energy, especially about modules based on holographic films. Holographic solar panels (HSP) in recent decades have appeared in large-scale production and been actively used in solar energy. Evaluations of other types of existing concentrators are presented.

scholarly journals Assessment of Existing Photovoltaic System with Cooling and Cleaning System: Case Study at Al-Khobar City

Processes ◽  
2019 ◽  
Vol 8 (1) ◽  
pp. 9 ◽  
Author(s):  
Nader Nader ◽  
Wael Al-Kouz ◽  
Sameer Al-Dahidi
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
Average Power ◽  
Photovoltaic System ◽  
Maximum Efficiency ◽  
Solar Panels ◽  
Greenhouse Gasses ◽  
Cleaning System ◽  
Vision 2030 ◽  
The Cost

There is no denial that renewable energy is considered to be the most cost-competitive source of clean power in many parts of the world. Saudi Arabia’s vision 2030 aims at achieving the best by using different sources of renewable energy such as solar energy, wind energy, and others. The use of solar energy in particular for power generation will decrease the dependency on oil, and thus, decrease the greenhouse gasses. Solar panels efficiency tends to decrease with the accumulation of dust on their surface. Thus, a cleaning process requires assigning and employing labor, which increases the cost of running as well as high cost of machinery. The current study focuses on assessing and designing a simple auto self-cleaning system in order to improve the efficiency of the solar panel. The results showed that for the Al-Khobar region, Eastern Province, Kingdom of Saudi Arabia, the efficiency of the solar panels after cleaning was increased from 6% to an average of 12% at nominal temperature of 27 °C. In addition, the average power output was increased by 35% during the day time. In addition, the normal efficiency of the solar panels before cooling was between 10% to 15% at 42 °C. After cooling, the temperature of solar cells decreased to 20 °C and the efficiency increased by 7%. Moreover, the output power was increased by 31% with maximum efficiency of 32% at noon time.

The rise of shareholder activism—what you need to know

2015 ◽  
Vol 55 (2) ◽  
pp. 448
Author(s):  
Mark Malinas
Keyword(s):  
Oil And Gas ◽  
Shareholder Activism ◽  
Share Price ◽  
Strategic Direction ◽  
The Us ◽  
Dramatic Rise ◽  
Under Performing ◽  
And Performance ◽  
Oil And Gas Companies ◽  
Oil And Gas Sector

The past few years have seen a dramatic rise in shareholder activism in Europe and the US and it is a trend becoming more common in Australia. Companies operating in the oil and gas sector have been subject to particular attention and there are a growing number of examples of this in Australia. The targets of shareholder activism range in size and performance, but are often companies with perceived board weakness, those that are considered to adhere to outdated corporate governance, those whose strategic direction is in question or those that have an under-performing share price, though other factors can also be relevant. Using these issues or concerns as a pretext, activists are increasingly focused on using tactics that allow them to exert control or exercise influence to realise returns or agitate for change in companies that: have significant assets (such as oil and gas reserves) relative to their market value; have high costs, large capital expenditures and long revenue generation lead time (such as exploration projects); or, operate in low growth or fluctuating markets (such as with the price of oil and gas). Unsurprisingly, the oil and gas sector is being increasingly seen by certain funds and investors as fertile ground for shareholder activism. The Australian legal landscape also presents shareholders with a platform from which to exert influence. For instance: shareholders are able to requisition general meetings (and resolutions to be put to those meetings) if they hold sufficient shares and put the entire board up for re-election following the introduction of the two strikes rule; and, directors are required to adhere to statutory and common law duties in responding to shareholders. Shareholder activist campaigns are often played out in public and can be highly disruptive to companies’ operations. Accordingly, directors and senior management of oil and gas companies should be aware of shareholder activism in Australia and, in the broader interests of all shareholders and their company, consider how they should respond or be ready to respond. This may be done through various processes, including testing the company’s perceived weaknesses and addressing them and having a plan to address activism should it arise.

Investments in Unsettled Maritime Boundary Contexts: The Role of Bilateral Investment Treaties in Delivering Certainty

2019 ◽  
Vol 34 (3) ◽  
pp. 666-696
Author(s):  
Kathryn Khamsi
Keyword(s):  
Renewable Energy ◽  
Oil And Gas ◽  
Energy Sector ◽  
Bilateral Investment Treaties ◽  
Maritime Boundary ◽  
Investment Treaties ◽  
Oil And Gas Sector ◽  
Inter State

Abstract Interest in offshore investment is growing: the oil and gas sector has been developing offshore reserves for some time; more recently, the renewable energy sector has also been investing offshore. In that context, this paper considers the legal uncertainties that overlapping sovereign claims in offshore areas create for investments. It then canvasses the commitments that States can accord to address these legal uncertainties, whether unilaterally or through inter-State authorities that jointly regulate areas subject to overlapping claims. This paper is then principally devoted to considering the role of bilateral investment treaties in enforcing such commitments, and otherwise addressing the legal uncertainties generated by overlapping maritime claims. By way of conclusion, this paper considers analogies to other situations where investments are subject to the sovereign rights of more than one State.

Petroleum investors could cut their losses in Yemen

2017 ◽  
Keyword(s):  
Civil War ◽  
Oil And Gas ◽  
Oil Production ◽  
Liquefied Natural Gas ◽  
Solar Panels ◽  
Content Type ◽  
Remote Areas ◽  
Post Conflict ◽  
Oil And Gas Sector

Subject Yemeni oil production. Significance The oil and gas sector -- which was in any case in long-term decline, owing to a lack of investment -- suffered serious disruption after civil war broke out in March 2015, with oil, liquefied natural gas (LNG) and refining facilities closed, and ports blockaded to prevent delivery of oil products. The internationally recognised government of President Abd Rabbu Mansour Hadi has renewed efforts to encourage a recovery in oil production since late 2016, but these are hampered by the civil war and lawlessness in remote areas. Impacts Saudi Arabia and the UAE will be the main sources of oil imports, probably on concessional terms. Hydrocarbon exports will not provide sufficient finance for post-conflict reconstruction. Exports of LNG are unlikely to restart before 2020 at the earliest. A crisis of power provision will expand the market for small solar panels.

scholarly journals URGENSI PENGATURAN PENGEMBANGAN ENERGI TERBARUKAN SEBAGAI WUJUD MENDUKUNG KETAHANAN ENERGI NASIONAL

2021 ◽  
Vol 3 (1) ◽  
pp. 18-24
Author(s):  
Faisal Faisal
Keyword(s):  
Renewable Energy ◽  
Energy Security ◽  
Oil And Gas ◽  
Energy System ◽  
Energy Sector ◽  
Energy Needs ◽  
National Energy Security ◽  
Catch Up ◽  
The Government ◽  
Oil And Gas Sector

Energy sovereignty in Indonesia is experiencing problems with a decline in national energy security. Indonesia's energy system is currently facing serious challenges. The imbalance in the condition of energy supplies with national energy needs, especially the oil and gas sector and efforts to fulfill national energy needs in a sustainable manner are the main problems of this nation in the energy sector. It is absolutely necessary to have strategic efforts in the field of creating new and renewable energy. Although the government has issued various policies to catch up, but to realize national energy security, it is necessary to urgently regulate the development of renewable energy as a form of supporting national energy security. As for the formulation of the problems raised in this study are: support national energy security in Indonesia? 2) what is the urgency of regulating the development of renewable energy as a form of supporting national energy security? This research will use normative juridical research and supported by empirical juridical research so that it will be able to see the conditions of developing renewable energy as a form of supporting national energy security in Indonesia. To realize this, it is necessary to urgently regulate the development of renewable energy as a form of supporting national energy security.

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