Generalized preliminary assessment of no-storage solar and wind grid-intertie systems

T. Agami Reddy

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The objectives of this paper are to estimate and discuss the penetration levels that are technically feasible by solar and wind grid-intertie electric systems that do not include any storage. The associated capacity credit of such systems are also assessed. The results of this study are based on hour-by-hour year-long simulations of how different sizes of such renewable energy systems behave in three widely different geographic locations in the US under three different synthetic electric load scenarios. We find that no energy dumping occurs for penetration levels (defined in terms of peak loads and not average output) up to 0.5 for all-wind systems and up to 0.6 for all-solar systems. These figures correspond to 10-25% of the annual electric energy. Capacity credit of solar systems are around 28-38% for low penetration levels decreasing to 15-20% for penetration levels of 0.5. Those for wind systems are lower and more variable : 1030% for penetration levels of 0.1 and 5-10% for levels of 0.5.

Original languageEnglish (US)
Title of host publicationSolar Engineering
PublisherPubl by ASME
Number of pages9
ISBN (Print)0791809536
StatePublished - Jan 1 1993
Externally publishedYes
EventASME International Solar Energy Conference - Washington, DC, USA
Duration: Apr 4 1993Apr 9 1993

Publication series

NameSolar Engineering


OtherASME International Solar Energy Conference
CityWashington, DC, USA

ASJC Scopus subject areas

  • Engineering(all)


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