--- res: bibo_abstract: - "Due to the strong reduction of PV prices, storage plays a dominating role in overall system costs. A \r\nsteeper elevation angle would result in a more balanced seasonal PV yield, at the cost of PV yield reductions during \r\nsummer, but allowing reduced storage capacities. Additionally, the effect of a single-axis tracking system has been \r\ninvestigated, generating more electricity during the morning and evening hours, thus reducing daily storage \r\nrequirements. The necessary PV size and storage capacities required for the German energy supply (1,500 TWh after \r\nelectrification of all sectors) via 100% renewable energies and a 50% solar share have been calculated via the \r\nHOMER Pro software, considering the bridging of periods of \"dark lulls“ in winter, using costs of 2030 (Table 1). \r\nResults: The increase of module elevation angles above the typical 30° leads to a reduction of investment and supply \r\ncosts. The optimum is reached at a cost reduction of -1.5% for an elevation angle at the latitude of the installation \r\nsite. An explanation is that high elevation angles are favorable for clear winter days, but not at all for the critical days \r\nwith diffuse irradiance only, so the battery capacity must be increased. For the same reason, tracking systems do not \r\noffer any cost advantage (at least for the ones without an option for horizontal positioning during diffuse days).@eng" bibo_authorlist: - foaf_Person: foaf_givenName: Stefan foaf_name: Krauter, Stefan foaf_surname: Krauter foaf_workInfoHomepage: http://www.librecat.org/personId=28836 orcid: 0000-0002-3594-260X - foaf_Person: foaf_givenName: D. foaf_name: Rustemovic, D. foaf_surname: Rustemovic - foaf_Person: foaf_givenName: Arash foaf_name: Khatibi, Arash foaf_surname: Khatibi foaf_workInfoHomepage: http://www.librecat.org/personId=43538 bibo_doi: 10.4229/EUPVSEC20202020-6BV.5.10 dct_date: 2020^xs_gYear dct_isPartOf: - http://id.crossref.org/issn/3-936338-73-6 dct_language: eng dct_subject: - Energy Storage - PV system integration - Large Grid-connected PV systems - Simulation - Energy Supply Options dct_title: Reduction of required storage capacities for a 100% renewable energy supply in Germany, if new PV systems are installed with east-west tracking systems at increased elevation angles@ ...