@MISC{batterie,
	author={chemie.de},
	title={Batterie},
	YEAR={2021-08-27},
	url = {https://www.chemie.de/lexikon/Batterie.html}
}

@misc{wiki:Duck_curve,
   author = "Wikipedia",
   title = "{Duck curve} - {W}ikipedia{,} The Free Encyclopedia",
   year = "2021",
   url = {https://en.wikipedia.org/wiki/Duck_curve},
   note = "[Online; accessed 2021-08-27]"
 }

@Misc{speicher,
	publisher = {© 2021 Greenhouse Media GmbH},
	title = {Energiespeicher-Technologien im Überblick},
	year={2021-10-16},
	url = {https://www.energie-experten.org/erneuerbare-energien/oekostrom/energiespeicher},
}

@Misc{kondensator,
	publisher = {© 2021 Greenhouse Media GmbH},
	title = {So funktionieren Super- und Ultrakondensatoren als Stromspeicher},
	year={2021-10-24},
	url = {https://www.energie-experten.org/erneuerbare-energien/oekostrom/energiespeicher/superkondensator},
}

@MISC{hydro_capacity,
	author = {N. Sönnichsen},
	title = { Capacity of pumped storage hydropower worldwide in 2020, by select country*},
	year = {2021-08},
	publisher = {statista.com},
	url = {https://www.statista.com/statistics/689667/pumped-storage-hydropower-capacity-worldwide-by-country/},
	Note = {* All figures are estimates}
}

@MISC{density,
	author= {Alexandra Zablocki},
	publisher = {eesi.org},
	year={2019-02-22},
	url = {https://www.eesi.org/papers/view/energy-storage-2019},
	title = {Fact Sheet | Energy Storage (2019)}
}

@misc{energy,
	publisher = {Duden Learnattack GmbH},
	year = {2021-09-29},
	url = {https://www.lernhelfer.de/schuelerlexikon/physik/artikel/energie},
	title = {Energie}
}

@misc{Etherm,
	publisher = {Duden Learnattack GmbH},
	year = {2021-10-30},
	url = {https://www.lernhelfer.de/schuelerlexikon/physik/artikel/thermische-energie},
	title = {Thermische Energie}
}

@misc{Emech,
	publisher = {Duden Learnattack GmbH},
	year = {2021-10-30},
	url = {https://www.lernhelfer.de/schuelerlexikon/physik-abitur/artikel/mechanische-energie-und-ihre-erhaltung},
	title = {Mechanische Energie und ihre Erhaltung}
}

@misc{Eelek,
	publisher = {Duden Learnattack GmbH},
	year = {2021-11-07},
	url = {https://www.lernhelfer.de/schuelerlexikon/physik/artikel/elektrische-energie},
	title = {Elektrische Energie}
}

@misc{Echem,
url = {https://www.chemie.de/lexikon/Chemische_Energie.html},
year = {2021-11-07}
}

@book{sterner2017energiespeicher,
  title={Energiespeicher - Bedarf, Technologien, Integration},
  author={Sterner, M. and Stadler, I.},
  isbn={9783662488928},
  url={https://books.google.de/books?id=jl02vgEACAAJ},
  year={2017},
  publisher={Springer Berlin Heidelberg}
}

@book{sterner2014energiespeicher,
  title={Energiespeicher - Bedarf, Technologien, Integration},
  author={Sterner, M. and Stadler, I.},
  isbn={9783642373800},
  url={https://books.google.de/books?id=MFajBAAAQBAJ},
  year={2014},
  publisher={Springer Berlin Heidelberg}
}

@book{denholm2015overgeneration,
  title={Overgeneration from Solar Energy in California: A Field Guide to the Duck Chart},
  author={Denholm, P.},
  series={NREL/TP},
  url={https://books.google.de/books?id=Mh3pAQAACAAJ},
  year={2015},
  publisher={National Renewable Energy Laboratory}
}}

@misc{duck2,
url={https://www.youtube.com/watch?v=YYLzss58CLs},
year = {2021-09-29},
}

@misc{wiki:Silicium,
   author = "Wikipedia",
   title = "{Silicium} - {W}ikipedia{,} The Free Encyclopedia",
   year = "2021",
   url = {https://de.wikipedia.org/wiki/Silicium},
   note = "[Online; accessed 23-October-2021]"
 }
 
 @misc{wiki:Solar_cell_efficiency,
   author = "Wikipedia",
   title = "{Solar cell efficiency} - {W}ikipedia{,} The Free Encyclopedia",
   year = "2021",
   url = {https://en.wikipedia.org/wiki/Solar_cell_efficiency},
   note = "[Online; accessed 23-October-2021]"
 }
 
@misc{methanisirung,
url= {https://www.energie-lexikon.info/methanisierung.html},
year= "2021",
}

@misc{paschotta_2021, 
title={Methanisierung}, 
url={https://www.energie-lexikon.info/methanisierung.html}, 
publisher={RP Photonics}, 
author={Paschotta, Dr. Rüdiger}, 
year={2021}, 
month={Sep},
note = "[Online; accessed 26-October-2021]"
}

@misc{BHKW,
url= {https://www.rebholz.de/wp-content/uploads/BHKW-Funktionszeichnung-1030x728.png},
year = {2021-10-26},
}

@misc{Elektrodenkessel,
url = {https://www.parat.no/de/produkte/parat-ieh-hochspannung-elektrodenkessel/},
year = {2021-10-30}
}

@misc{powerwall,
url = {https://www.tesla.com/de_de/powerwall},
publisher = {Tesla Germany GmbH},
year = {2021-10-31},
}

@misc{akkutable1,
URL = {http://elektronik.david-froehlich.de/akkus/},
year = {2021-10-31},
}

@misc{wiki:Akkumulator,
   author = "Wikipedia",
   title = "{Akkumulator} - {W}ikipedia{,} The Free Encyclopedia",
   year = "2021",
   howpublished = {\url{http://de.wikipedia.org/w/index.php?title=Akkumulator&oldid=216563305}},
   note = "[Online; accessed 31-October-2021]"
}
 
@misc{hs:redox,
url = {https://ei.hs-duesseldorf.de/personen/braun/lehre/Documents/Energiespeicher%20SS16/Energiespeicher%2008%20-%20Redox-Flow-Batterien.pdf} ,
year = {2021-10-31},
}

@misc{harding,
url = {https://www.hardingenergy.com/lithium-2/},
year = {2021-10-31},
}

@misc{gebattery,
url = {https://web.archive.org/web/20131103220103/http://www.gebattery.com.cn/product/High_energy_battery.html},
year = {2021-10-31},
}

@misc{helmholtz,
author = {Peters, Jens and Fulton, Jacob and Baumann, Manuel and Weil, Marcel},
year = {2021-10-31},
url = {https://www.researchgate.net/publication/317249223_Life_Cycle_Costs_Model_for_Vanadium_Redox_Flow_Batteries},
title = {Life Cycle Costs Model for Vanadium Redox Flow Batteries}
}

@article{osti,
title = {Energy Storage Technology and Cost Characterization Report},
author = {Mongird, Kendall and Viswanathan, Vilayanur V. and Balducci, Patrick J. and Alam, Md Jan E. and Fotedar, Vanshika and Koritarov, V S. and Hadjerioua, Boualem},
doi = {10.2172/1573487},
url = {https://www.osti.gov/biblio/1573487},
place = {United States},
year = {2019},
month = {7}
}

@misc{vrfb-bild,
url = {https://www.heise.de/select/tr/2020/12/2028015123018135275/konzept_vanadium_redox_flow_batterie.png},
year = {2021-11-03},
note = {edited}
}

@misc{liIon-bild,
url = {https://upload.wikimedia.org/wikipedia/commons/c/cc/Li-Ion-Zelle_%28CoO2-Carbon%2C_Schema%29.svg},
year = {2021-11-03}
}

@misc{LiIonfunktionvideo,
url = {https://www.youtube.com/watch?v=G5McJw4KkG8},
year = {2021-11-03}
}

@misc{wiki:Lithium-Cobaltdioxid-Akkumulator,
   author = "Wikipedia",
   title = "{Lithium-Cobaltdioxid-Akkumulator} - {W}ikipedia{,} The Free Encyclopedia",
   year = "2021",
   howpublished = {\url{http://de.wikipedia.org/w/index.php?title=Lithium-Cobaltdioxid-Akkumulator&oldid=199896141}},
   note = "[Online; accessed 03-November-2021]"
}

@misc{Interkalation,
url = {https://www.chemie.de/lexikon/Interkalation_%28Chemie%29.html},
year = {2021-11-03}
}

@misc{Vsalze,
url = {https://upload.wikimedia.org/wikipedia/commons/3/32/Vanadiumoxidationstates.jpg},
year = {2021-11-03}
}

@misc{Elektrolyt,
url = {https://www.chemie.de/lexikon/Elektrolyt.html},
year = {2021-11-03}
}

@misc{Redox,
url = {https://www.chemie.de/lexikon/Redoxreaktion.html},
year = {2021-11-03}
}

@misc{vrfbreaktion,
url = {https://www.energie-und-chemie.de/fileadmin/downloads/Service_und_Informationen/Presse_OEffentlichkeitsarbeit/Sonstige/Presentation_TAK-ENERGIE__2014-03-27_Tuebke_FhG_ICT.pdf},
year = {2021-11-04}
}

@misc{wiki:Vanadium_redox_battery,
   author = "Wikipedia",
   title = "{Vanadium redox battery} - {W}ikipedia{,} The Free Encyclopedia",
   year = "2021",
   howpublished = {\url{http://en.wikipedia.org/w/index.php?title=Vanadium\%20redox\%20battery&oldid=1052349618}},
   note = "[Online; accessed 05-November-2021]"
 }
 
@misc{caes,
	url = {https://www.ingenieur.de/technik/fachbereiche/energie/wie-schweizer-druckluft-in-tunnel-am-gotthard-energiespeicher-nutzen/},
	year = {2021-11-04}
}

@misc{pefc_image,
url = {https://de.wikipedia.org/wiki/Polymerelektrolytbrennstoffzelle#/media/Datei:Schema-PEMFC.svg},
year = {2021-11-05}
}

@misc{pefc_history,
url = {https://www.dlr.de/next/desktopdefault.aspx/tabid-6328/11118_read-25340/},
year = {2021-11-05}
}

@misc{pefc_function,
url = {https://www.chemie.de/lexikon/Polymerelektrolytbrennstoffzelle.html},
year = {2021-11-05}
}

@misc{sofc_function,
url = {https://www.chemie.de/lexikon/Festoxidbrennstoffzelle.html},
year = {2021-11-06}
}

@misc{fc_reaction,
url = {https://www.chemie.de/lexikon/Brennstoffzelle.html},
year = {2021-11-05}
}

@misc{sofc_image,
url = {https://image.ajunews.com/content/image/2020/05/25/20200525130301722928.jpg},
year = {2021-11-05}
}

@misc{wiki:sofc,
   author = "Wikipedia",
   title = "{Festoxidbrennstoffzelle} - {W}ikipedia{,} The Free Encyclopedia",
   year = "2021",
   howpublished = {\url{http://de.wikipedia.org/w/index.php?title=Festoxidbrennstoffzelle&oldid=213803621}},
   note = "[Online; accessed 05-November-2021]"
 }
 
@article{MAY2018145,
title = {Lead batteries for utility energy storage: A review},
journal = {Journal of Energy Storage},
volume = {15},
pages = {145-157},
year = {2018},
issn = {2352-152X},
doi = {https://doi.org/10.1016/j.est.2017.11.008},
url = {https://www.sciencedirect.com/science/article/pii/S2352152X17304437},
author = {Geoffrey J. May and Alistair Davidson and Boris Monahov},
keywords = {Energy storage system, Lead–acid batteries, Renewable energy storage, Utility storage systems, Electricity networks},
}

@misc{h2_stats,
url = {https://www.youtube.com/watch?v=f7MzFfuNOtY},
year = {2021-11-06}
}

@misc{h2_desnity,
url = {https://rmi.org/run-on-less-with-hydrogen-fuel-cells/},
year = {2021-11-06}
}

@misc{Permeation,
url = {https://www.chemie-schule.de/KnowHow/Permeation},
year = {2021-11-07}
}

@misc{oeko,
url = {https://www.oeko.de/presse/archiv-pressemeldungen/presse-detailseite/2020/lithium-graphit-fuer-die-batterieproduktion-zukunft-der-lieferkette},
year = {2021-11-06}
}

@misc{h2_density,
url = {https://rmi.org/run-on-less-with-hydrogen-fuel-cells/#:~:text=By%20contrast%2C%20hydrogen%20has%20an,12%E2%80%9314%20kWh%20per%20kg.},
year = {2021-11-06}
}

@misc{electro,
url = {https://spiderman.fandom.com/de/wiki/Electro},
year = {2021-11-07}
}

@misc{nrel_h2,
url = {https://www.nrel.gov/docs/fy20osti/76055.pdf},
year = {2021-11-07}
}

@article{osti_1660255,
title = {2019 Annual Progress Report: DOE Hydrogen and Fuel Cells Program},
author = {Ramsden, Todd},
url = {https://www.osti.gov/biblio/1660255}, journal = {},
place = {United States},
year = {2020},
month = {9}
}

@misc{stromschlag,
url = {https://www.suva.ch/de-ch/news/2019/stromschlag},
year = {2021-11-08}
}

@misc{werk,
url = {https://www.twl-kurier.de/wie-funktioniert-ein-umspannwerk-2099},
year = {2021-11-08}
}

@misc{duck_graph,
url = {https://image.pngaaa.com/143/55143-middle.png},
year = {2021-11-08}
}