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Photo-thermal Power In The Power Grid Over 30% Will Be More Competitive
- Dec 04, 2017 -

In recent years, Germany has spared no effort in trying out the energy transformation. In 2011, Germany developed a clean energy plan, according to the plan to 2050 by Germany's clean energy grid power generation proportion will increase from the current 30% to 90%. Currently, Germany is looking for the most cost-effective way to power its grid and look forward to achieving substantially zero emissions by 2050.

Given the low native DNI index in Germany, it seems unlikely that CSP will play an important role in the country's energy transformation and in building a low-carbon grid. However, the findings of several papers published in 2016 show that CSP-TES may play an important role in this process.

In order to verify the rationality of the above analysis and to meet the requirements of ESE (Energy Systems Project) of the German Academy of Sciences, RWTH Aachen developed a new calculation tool and used it to study which Flexible and adjustable power is best suited for supporting auxiliary power loads in low-carbon grids.

It is well-known that CSP systems produce flexible and scalable power but have high requirements for normal direct radiation (DNI). Therefore, CSPs are mostly built in the desert areas with abundant solar energy resources.

An analysis by German researchers came to the conclusion that if Germany imported electricity from Spain and Morocco with a high DNI index, CSP with stored energy would be a very economically viable option.

Of course, the import of solar thermal power from these two countries will require the construction of HVDC transmission lines, which is also the most economical option for large-scale power transmission over long distances. Therefore, the calculation of electricity costs should include the cost of solar thermal power generation and the cost of new transmission lines.