Media type: E-Article Title: Optimization of Hybrid Energy System of Building to Operate as Frequency Containment Reserve (FCR) Contributor: Savolainen, Rebecka; Einolander, Johannes; Lahdelma, Risto Published: Elsevier BV, 2021 Published in: SSRN Electronic Journal (2021) Language: English DOI: 10.2139/ssrn.3948376 ISSN: 1556-5068 Keywords: Pharmacology (medical) Origination: Footnote: