Energy and Environment

1978 ◽  
Vol 192 (1) ◽  
pp. 197-211
Author(s):  
M. Barrere

Energy problems will play a fundamental role in the near future and it is necessary that researchers, engineers, economists, ecologists start working together, before it is too late, in order to increase the existing non-fossil energy sources, to develop new sources or new technologies using less energy without polluting the environment. This situation may lead in some cases to conflicting actions, and therefore the engineer's task is to find the optimal solutions. The problem is considered from both the national and international points of view.

Eos ◽  
2018 ◽  
Vol 99 ◽  
Author(s):  
Kimberly Cartier

The budgets reflect the administration’s energy and environment priorities by boosting research and development for coal and oil while decreasing funding for clean and renewable energies and environmental protection.


Energies ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2862
Author(s):  
Mika Korkeakoski

Renewable Energy Sources (RES) have become increasingly desirable worldwide in the fight against global climate change. The sharp decrease in costs of especially wind and solar photovoltaics (PV) have created opportunities to move from dependency on conventional fossil fuel-based electricity production towards renewable energy sources. Renewables experience around 7% (in 2018) annual growth rate in the electricity production globally and the pace is expected to further increase in the near future. Cuba is no exception in this regard, the government has set an ambitious renewable energy target of 24% RES of electricity production by the year 2030. The article analyses renewable energy trajectories in Isla de la Juventud, Cuba, through different future energy scenarios utilizing EnergyPLAN tool. The goal is to identify the best fit and least cost options in transitioning towards 100% electric power systemin Isla de la Juventud, Cuba. The work is divided into analysis of (1) technical possibilities for five scenarios in the electricity production with a 40% increase of electricity consumption by 2030: Business As Usual (BAU 2030, with the current electric power system (EPS) setup), VISION 2030 (according to the Cuban government plan with 24% RES), Advanced Renewables (ARES, with 50% RES), High Renewables (HiRES, with 70% RES), and Fully Renewables (FullRES, with 100% RES based electricity system) scenarios and (2) defining least cost options for the five scenarios in Isla de la Juventud, Cuba. The results show that high penetration of renewables is technically possible even up to 100% RES although the best technological fit versus least cost options may not favor the 100% RES based systems with the current electric power system (EPS) setup. This is due to realities in access to resources, especially importation of state of the art technological equipment and biofuels, financial and investment resources, as well as the high costs of storage systems. The analysis shows the Cuban government vision of reaching 24% of RES in the electricity production by 2030 can be exceeded even up to 70% RES based systems with similar or even lower costs in the near future in Isla de la Juventud. However, overcoming critical challenges in the economic, political, and legal conditions are crucially important; how will the implementation of huge national capital investments and significant involvement of Foreign Direct Investments (FDI) actualize to support achievement of the Cuban government’s 2030 vision?


1999 ◽  
Vol 14 (3) ◽  
pp. 98-102 ◽  
Author(s):  
S.B. Wuest ◽  
D.K. McCool ◽  
B.C. Miller ◽  
R.J. Veseth

AbstractResearch aimed at advancing conservation farming practices is typically performed using traditional scientific approaches, which have been highly successful in increasing agricultural output and efficiency. With the current emphasis on environmental and economic sustainability of agriculture, there is a need for a more integrated approach to applied agricultural research. Participatory research helps to bring scientific methods and the integrated production needs of farmers together to develop practical, effective, and carefully tested farming methods. The strength of participatory research is in the synergism of scientists and farmers working together to design, implement, and evaluate research. The development of new technologies for farming systems large or small, conventional or organic, can be greatly enhanced through more extensive use of participatory research.


2021 ◽  
Vol 1 (11) ◽  
pp. 75-82
Author(s):  
Elena V. Karanina ◽  
◽  
Maxim A. Bortnikov ◽  

Many leading world powers are already setting ambitious goals to achieve zero CO2 emis-sions in the electric power industry through the use of renewable energy sources (RES) in the near future. In Russia, this type of generation also received state support, however, more modest, due to the low intercon-nection between Russia and renewable energy sources in terms of the state's energy security. The purpose of the study is to determine the effectiveness of the existing support for renewable energy in the Russian Federation, to assess the feasibility of building these facilities in our country, as well as to provide a scientifically substantiated proposal for alternative ways of developing the industry. The paper analyzes and summarizes the economic aspects of investment and operating activities of wind, solar and small hydropower in Russia. As a result, it was concluded that the pace of development chosen by the Ministry of Energy of the Russian Federation can be considered correct, but it is necessary to adjust the support program and diversify in terms of the subjectivity of the construction of new generating facilities based on RES.


Author(s):  
Kau-Fui Vincent Wong ◽  
Guillermo Amador

As society continues advancing into the future, more energy is required to supply the increasing population and energy demands. Unfortunately, traditional forms of energy production through the burning of carbon-based fuels are dumping harmful pollutants into the environment, resulting in detrimental, and possibly irreversible, effects on our planet. The burning of coal and fossil fuels provides energy at the least monetary cost for countries like the US, but the price being paid through their negative impact of our atmosphere is difficult to quantify. A rapid shift to clean, alternative energy sources is critical in order to reduce the amount of greenhouse gas emissions. For alternative energy sources to replace traditional energy sources that produce greenhouse gases, they must be capable of providing energy at equal or greater rates and efficiencies, while still functioning at competitive prices. The main factors hindering the pursuit of alternative sources are their high initial costs and, for some, intermittency. The creation of electrical energy from natural sources like wind, water, and solar is very desirable since it produces no greenhouse gases and makes use of renewable sources—unlike fossil fuels. However, the planning and technology required to tap into these sources and transfer energy at the rate and consistency needed to supply our society comes at a higher price than traditional methods. These high costs are a result of the large-scale implementation of the state-of-the-art technologies behind the devices required for energy cultivation and delivery from these unorthodox sources. On the other hand, as fossil fuel sources become scarcer, the rising fuel costs drive overall costs up and make traditional methods less cost effective. The growing scarcity of fossil fuels and resulting pollutants stimulate the necessity to transition away from traditional energy production methods. Currently, the most common alternative energy technologies are solar photovoltaics (PVs), concentrated solar power (CSP), wind, hydroelectric, geothermal, tidal, wave, and nuclear. Because of government intervention in countries like the US and the absence of the need to restructure the electricity transmission system (due to the similarity in geographical requirements and consistency in power outputs for nuclear and traditional plants), nuclear energy is the most cost competitive energy technology that does not produce greenhouse gases. Through the proper use of nuclear fission electricity at high efficiencies could be produced without polluting our atmosphere. However, the initial capital required to erect nuclear plants dictates a higher cost over traditional methods. Therefore, the government is providing help with the high initial costs through loan guarantees, in order to stimulate the growth of low-emission energy production. This paper analyzes the proposal for the use of nuclear power as an intermediate step before an eventual transition to greater dependence on energy from wind, water, and solar (WWS) sources. Complete dependence on WWS cannot be achieved in the near future, within 20 years, because of the unavoidable variability of these sources and the required overhaul of the electricity transmission system. Therefore, we look to nuclear power in the time being to help provide predictable power as a means to reduce carbon emissions, while the other technologies are refined and gradually implemented in order to meet energy demand on a consistent basis.


2021 ◽  
Vol 250 ◽  
pp. 03007
Author(s):  
Zhala Rzayeva ◽  
Aysel Guliyeva ◽  
Arzu Miriyeva

This paper focuses in the natural and economic effects of renewable energy sources in the developing countries using a case of Azerbaijan. Traditional fuel supplies dependent on gas, oil, and coal are highly useful for the development of a country’s economy. However, certain detrimental effects of these commodities on the environment have limited us to use these resources under clear cut-off points. As a result, we were able to turn our intuition into renewable energy sources. By using renewable energy sources, social, natural, and financial challenges can be ignored because these sources are considered harmless to the atmosphere, as there are little or virtually no fumes discharged, and toxic gases such as carbon dioxide, carbon monoxide, and sulfur dioxide. Renewable electricity would be a major advantage for power generation in the near future so we will reuse these assets to generate useful electricity. The paper discusses these and other issues with the implementation of renewable energy and assess the potentials of Azerbaijan in adapting this type of energy in the future.


Author(s):  
Peter Marks

This chapter deals with of recent novels and films that project forward into the near future, suggesting where surveillance might be heading. In Kim Stanley Robinson’s 2312, surveillance is figured into a future world of interplanetary environmentalism, in protecting planets and helping to monitor the ‘rewilding’ of an environmentally devastated Earth. Neill Blomkamp’s film Elysium fashions another Earth under environmental stress, patrolled by stringent surveillance operatives and systems that also screen the put-upon inhabitants from the eponymous eutopian space station literally and metaphorically above them. The film concentrates on the utopian urges of that population in their endeavour to overcome oppressive monitoring and receive medical treatment reserved for those on Elysium. Dave Eggers conjures up an apparently eutopian hi-tech company, The Circle, in his novel of the same name, representing how new technologies manipulate data and images for economic, social and political control. Spike Jonze’s film Her explores the relationship between surveillance and intimacy through the interaction between a human and an operating system. As with Eggers’ The Circle, Her investigates how data confuses definitions of identities as it allows for the fusion of surveillance and intimacy. These novels and films suggest some of the ways in which new forms of surveillance promise or threaten to fashion the worlds of the future. As with all such texts, they suggest options and present narratives and characters that enable readers and viewers to think and act so that the future approximates the eutopian rather than the dystopian.


Author(s):  
Maheswari Maruthakutti ◽  
Loganathan Nachimuthu ◽  
Suthanthira Vanitha N.

Smart grid provides the digital technology that allows for two-way communication between the utility and the customers. The smart grid consists of controls, computers, automation, and new technologies and equipment working together. The smart grid will move the energy industry into a new era of reliability, availability, and efficiency with economic and environmental health. A smart meter plays a major role in the smart grid and it is an electronic device that measures and records the energy consumption. It enables two-way communication between the meter and the supplier through advanced metering infrastructure (AMI). The mode of communication is enabled by either wireless or wired. The wireless communication includes Wi-Fi, wireless mesh networks, Zig Bee, cellular communications, and low power range Wi-Fi. This chapter deliberates about the evolution of electricity metering, major components of smart meter, communication infrastructure and protocols for smart metering, demand-side integration, recent developments, issues faced and solutions, merits and demerits.


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