Open AccessSimulation of hybrid solar power plants
Author(s) -
Simon Dieckmann,
Jürgen Dersch
Publication year - 2017
Publication title -
aip conference proceedings
Language(s) - English
Resource type - Conference proceedings
eISSN - 1551-7616
pISSN - 0094-243X
DOI - 10.1063/1.4984539
Subject(s) - cost of electricity by source , parabolic trough , concentrated solar power , photovoltaics , dispatchable generation , power station , thermal energy storage , process engineering , electricity generation , solar power , environmental science , capital cost , engineering , solar energy , photovoltaic system , renewable energy , electrical engineering , power (physics) , distributed generation , ecology , physics , quantum mechanics , biology
Hybrid solar power plants have the potential to combine advantages of two different technologies at the cost of increased complexity. The present paper shows the potential of the software greenius for the techno-economic evaluation of hybrid solar power plants and discusses two exemplary scenarios. Depreciated Concentrated Solar Power (CSP) plants based on trough technology can be retrofitted with solar towers in order to reach higher steam cycle temperatures and hence efficiencies. Compared to a newly built tower plant the hybridization of a depreciated trough plant causes about 30% lower LCOE reaching 104 $/MWh. The second hybrid scenario combines cost-efficient photovoltaics with dispatchable CSP technology. This hybrid plant offers very high capacity factors up to 69% based on 100% load from 8am to 11pm. The LCOE of the hybrid plant are only slightly lower (174 vs. 186 $/MWh) compared to the pure CSP plant because the capital expenditure for thermal storage and power block remains the same while the electricity output is much lower
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