I think that the energy required to produce pv panels batteries and converters is more than the energy produces by the same panel in its life time, i need a research article to prove me wrong
it is depends on which kind of renewable you wanna use and each one have condition even size also
You have raised a very valid point Djilani, We need to compare with the benefit to communities who otherwise would not have access to electricity.
Dear Djilani,
It is an interesting reasoning the one that you are having. In fact, in many cases the net produced energy is not even sufficient to repay the energy invested in the construction of the facility. However, nowadays there is a growing concern about this type of NEA (Net Energy Analysis) to assess the performance of energy services. A good indicator for the comparison of renewable vs non-renewable technologies is the EROI (Energy Return On Investment), which compares the energy produced to the energy invested, very similar to the economic indicator. You can check these articles on the topic:
- Article Evaluation of sustainable useful index (SUI) by fuzzy approa...
- Article EROI of Different Fuels and the Implications for Society
I hope that this helps you,
Carlos
Good question.....It depend on the kind of renewable energy and the condition even size also.
this following article has gone through this question and investigated the life cycle GHG emissions associated with different types of energy production feedstock which can be correlated to to energy consumption
Article Greenhouse gas emissions reduction potential of Jordan's uti...
it does not need lots of thoughts .. if it was what you mentioned .. the world would not go for it
The sustainability of any process (including renewable energy) is done through the life cycle analysis (LCA). The LCA ReciPe and EcoIndicator99 measurement tools are highly recommended. The limited availability of data (on chemical compounds, materials, etc.) and the uncertainty of these are the main drawback of these methods.
See the following links:
Article Correlations in Life Cycle Impact Assessment methods (LCIA) ...
Article ReCiPE 2008: A life cycle impact assessment method which com...
thank you all for your responses, i think it will be gradually self sustainable when the production process of the renewable energy generators come from green energy.
Sustainability are very different concept from renewability of an energy source. Renewability is basically its own nature but sustainability concerns the way human beings use it. A renewable means that it can be generated or recovered naturally after exploitation. Sustainability is assured by the using it at a reasonable rate of extraction. It is generally possible to achieve renewability and sustainability in solar, wind and geothermal energy sources.
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