scholarly journals Techno-economic analysis of hydrogen production from PV plants

2022 ◽  
Vol 334 ◽  
pp. 01001
Author(s):  
Angelica Liponi ◽  
Andrea Baccioli ◽  
Lorenzo Ferrari ◽  
Umberto Desideri

Hydrogen production through electrolysis from renewable sources is expected to play an important role to achieve the reduction targets of carbon dioxide emissions set for the next decades. Electrolysers can use the renewable energy surplus to produce green hydrogen and contribute to making the electrical grid more stable. Hydrogen can be used as medium-long term energy storage, converted into other fuels, or used as feedstock in industry thus contributing to decarbonise hard-to-abate-sectors. However, due to the intermittent and variable nature of solar and wind power, the direct coupling of electrolysers with renewables may lead to high production fluctuations and frequent shutdowns. As a consequence, accelerated electrolyser degradation and safety issues related to low load operation may arise. In this study, simulations of hydrogen production with an electrolyser fed by a PV system are performed in Matlab for a reference year. The effect of PV power fluctuations on the electrolyser operation and production is investigated. The impact of the electrolyser size for a fixed nominal power of the PV plant is also analysed from both energetic and economic points of view.

2009 ◽  
Vol 31 (3) ◽  
pp. 425-445 ◽  
Author(s):  
Richard S.J. Tol ◽  
Stephen W. Pacala ◽  
Robert H. Socolow

2017 ◽  
Vol 9 (4) ◽  
pp. 227-255 ◽  
Author(s):  
Sébastien Houde ◽  
Joseph E. Aldy

Through an evaluation of the 2009 Recovery Act's State Energy Efficient Appliance Rebate Program, this paper examines consumers' response to energy efficiency rebates. The analysis shows that 70 percent of consumers claiming a rebate were inframarginal and an additional 15 percent–20 percent of consumers simply delayed their purchases by a few weeks. Consumers responded to rebates by upgrading to higher quality, but less energy-efficient models. Overall the impact of the program on long-term energy demand is likely to be small. Measures of government expenditure per unit of energy saved are an order of magnitude higher than estimates for other energy efficiency programs. (JEL D12, H31, H71, Q48)


Author(s):  
Mykola Stetsiuk

The article analyzes the underlying foundations of Germany’s position regarding the construction of Russia’s Nord Stream 2 pipeline, as well as the impact of this position on the European Union’s joint energy policy and energy security. Against the backdrop of the constantly growing energy consumption both globally and in EU specifically, supplies of energy sources are being increasingly used by exporters as an instrument of political influence. In this context, the Nord Stream-2 pipeline is regarded as such an instrument, primarily by Russia itself. On the other hand, Germany has been supporting the construction of the new Russian pipeline due to the need to ensure uninterrupted supply of cheap natural gas. The latter is of particular significance for the realization of Germany’s long-term energy transformation strategy. However, by sticking to such a position, Germany prioritizes its own political and economic interests over those of EU and individual Member States, which is contrary to one of the main principles of EU’s functioning, i.e., the principle of solidarity. With this in mind, it is reasonable to conclude that Germany is almost single-handedly defining the strategic direction of the entire EU’s energy policy without paying due attention to alternative suppliers and sources.


2015 ◽  
Vol 51 (5) ◽  
pp. 3353-3369 ◽  
Author(s):  
Bin Xu ◽  
Ping-An Zhong ◽  
Zachary Stanko ◽  
Yunfa Zhao ◽  
William W.-G. Yeh

2021 ◽  
pp. 17-23
Author(s):  
Szira Zoltán ◽  
Bárdos Kinga Ilona ◽  
Alghamdi Hani ◽  
Enkhjav Tumentsetseg ◽  
Erika Varga

2019 was Earth's second warmest year since 1850. In 2019 the global mean temperature was cooler than in 2016, but warmer than any other year explicitly measured. Consequently, 2016 is still the warmest year in historical observation history. Year-to-year rankings are likely to reflect natural fluctuations in the short term, but the overall pattern remains consistent with a long-term global warming trend. This would be predicted from global warming caused by greenhouse gases, temperature increase across the globe is broadly spread, impacting almost all areas of land and oceans. Climate change" and "global warming" are often used interchangeably but are of distinct significance. Global warming is the long-term heating of the Earth's climate system observed since the pre-industrial period as a result of human activities, mainly the combustion of fossil fuel, which raises the heat-trapping greenhouse gas levels in the Earth's air. The term is often used interchangeably with the term climate change, as the latter applies to warming caused both humanly and naturally, and the impact it has on our planet. This is most generally calculated as the average increase in global surface temperature on Earth. Carbon dioxide emission is one of the main reasons for global warming. Since the Industrial Revolution, human sources of carbon dioxide emissions have been growing. Human activities such as the burning of oil, coal and gas, as well as deforestation are the primary cause of the increased carbon dioxide concentrations in the atmosphere. In our research, let’s examine the relationship between the amount of carbon dioxide emissions and the GDP/capita in developed and developing countries.


2017 ◽  
Vol 141 ◽  
pp. 91-95 ◽  
Author(s):  
Po-Chien Hsu ◽  
Bin-Juine Huang ◽  
Po-Hsien Wu ◽  
Wei-Hau Wu ◽  
Min-Jia Lee ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document