Editing Energy storage (section)

== References ==
<!--  NOTE: Older retired references have been relocated to the very bottom -->
{{Reflist
|refs =
<ref name="Aifantis et al">{{cite book |first1=Katerina E. |last1=Aifantis|first2=Stephen A. |last2=Hackney|first3=R. Vasant |last3=Kumar |title=High Energy Density Lithium Batteries: Materials, Engineering, Applications |url={{google books |plainurl=y |id=IJBq21jyzjkC}} |date=March 30, 2010 |publisher=John Wiley & Sons |isbn=978-3-527-63002-8 }}</ref>

<ref name="Alchemy white paper">[http://www.alcres.com/docs/alydro-energy-storage.pdf White Paper: A Novel Method For Grid Energy Storage Using Aluminum Fuel] {{Webarchive|url=https://web.archive.org/web/20130531060548/http://www.alcres.com/docs/alydro-energy-storage.pdf |date=May 31, 2013 }}, Alchemy Research, April 2012.</ref>

<ref name="Auner">Auner, Norbert. [https://www.econstor.eu/dspace/bitstream/10419/21871/1/PROD0000000000079095.pdf Silicon as an intermediary between renewable energy and hydrogen] {{Webarchive|url=https://web.archive.org/web/20130729073713/https://www.econstor.eu/dspace/bitstream/10419/21871/1/PROD0000000000079095.pdf |date=July 29, 2013 }}, Frankfurt, Germany: Institute of Inorganic Chemistry, Johann Wolfgang Goethe University Frankfurt, Leibniz-Informationszentrum Wirtschaft, May 5, 2004, No. 11.</ref>

<ref name="Auto.com-2004.03.18">Diem, William. [https://web.archive.org/web/20040320020939/http://www.freep.com/money/autonews/aircar18_20040318.htm Experimental car is powered by air: French developer works on making it practical for real-world driving], Auto.com, March 18, 2004. Retrieved from Archive.org on March 19, 2013.</ref>

<ref name="Bird">{{cite book
| title = Electrical and Electronic Principles and Technology
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 | year = 2010 
 | publisher = Routledge
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| access-date =March 17, 2013}}</ref>

<ref name="Bloomberg-2012.09.06">Downing, Louise. [https://www.bloomberg.com/news/print/2012-08-27/ski-lifts-help-open-25-billion-market-for-storing-power-energy.html Ski Lifts Help Open $25 Billion Market for Storing Power] {{Webarchive|url=https://web.archive.org/web/20160917090233/http://www.bloomberg.com/news/print/2012-08-27/ski-lifts-help-open-25-billion-market-for-storing-power-energy.html |date=September 17, 2016 }}, [[Bloomberg News]] online, September 6, 2012</ref>

<ref name="Calmac">[http://www.calmac.com/whatsnew/a6maccracken1.pdf Thermal Energy Storage Myths] {{webarchive|url=https://web.archive.org/web/20100326100309/http://www.calmac.com/whatsnew/a6maccracken1.pdf |date=March 26, 2010 }}, Calmac.com website.</ref>

<ref name="Cartlidge">{{cite journal
  | url = https://www.science.org/doi/full/10.1126/science.334.6058.922
  | title=Saving for a rainy day
  | author=Edwin Cartlidge
  | date=November 18, 2011
  | journal=Science
  | volume=334
 | issue=6058
 | pages=922–924| doi=10.1126/science.334.6058.922
 | pmid=22096185
 | bibcode=2011Sci...334..922C
 }}</ref>

<ref name="Cheung-Cheung-De Silvia-Juvonen-Singh-Woo">Cheung K.Y.C; Cheung S.T.H.; Navin De Silvia; Juvonen; Singh; Woo J.J. ''Large-Scale Energy Storage Systems'', [[Imperial College London]]: ISE2, 2002/2003.</ref>

<ref name="Complexity-Vol14.Iss3">{{cite journal
  | title=Digital Batteries
  | first=Alfred W.| last=Hubler
  | journal=Complexity
  | volume=14| issue=3
  | pages=7–8
  | date=Jan–Feb 2009
  | doi=10.1002/cplx.20275| bibcode=2009Cmplx..14c...7H| doi-access=free
  }}</ref>

<ref name="Conway">{{cite book
| author=B. E. Conway
  | title=Electrochemical Supercapacitors: Scientific Fundamentals and Technological Applications
  | year=1999
  | publisher=Springer
  | location=Berlin
  | isbn=978-0306457364
  | url={{google books|plainurl=y|id=8yvzlr9TqI0C|page=1}}
  | access-date=May 2, 2013}}</ref>

<ref name="Cowan">Cowan, Graham R.L. [http://www.eagle.ca/~gcowan/boron_blast.html Boron: A Better Energy Carrier than Hydrogen?] {{Webarchive|url=https://web.archive.org/web/20070705214652/http://www.eagle.ca/~gcowan/boron_blast.html |date=July 5, 2007 }}, June 12, 2007</ref>

<ref name="Democrat and Chronicle-2014.04.30">Loudon, Bennett J. [http://www.democratandchronicle.com/story/money/2014/04/30/ny-best-energy-storage-batteries/8505487/ NY-BEST Opens $23M Energy Storage Center] {{Webarchive|url=https://web.archive.org/web/20200728083139/https://www.democratandchronicle.com/story/money/2014/04/30/ny-best-energy-storage-batteries/8505487/ |date=July 28, 2020 }}, [[Rochester, New York]]: ''[[Democrat and Chronicle]]'', April 30, 2014.</ref>

<!--unused<ref name="Deutsche Welle-2014.07.21">[http://www.dw.de/norway-energy-storage-for-europe/av-17762986 Norway: Energy storage for Europe] (video report), [[Deutsche Welle]], July 7, 2014. Retrieved July 21, 2014.</ref>-->

<ref name="DistributedEnergy.com">[http://www.distributedenergy.com/march-april-2009/fire-and-ice.aspx Fire and Ice based storage] {{Webarchive|url=https://web.archive.org/web/20090825160658/http://www.distributedenergy.com/march-april-2009/fire-and-ice.aspx |date=August 25, 2009 }}, DistributedEnergy.com website, April 2009.</ref>

<ref name="DistrictEnergy.org-a">Wong, B. (2011). [http://www.districtenergy.org/assets/pdfs/2011Annual_Conf/Proceedings/A24WONG-v03.pdf ''Drake Landing Solar Community.''] {{webarchive|url=https://web.archive.org/web/20160304030520/http://www.districtenergy.org/assets/pdfs/2011Annual_Conf/Proceedings/A24WONG-v03.pdf |date=March 4, 2016 }}</ref>

<ref name = DLR2020>{{cite web
 | title = World's first Carnot battery stores electricity in heat
 | date = 20 September 2020
 | publisher = German Energy Solutions Initiative
 | url = https://www.german-energy-solutions.de/GES/Redaktion/EN/News/2020/20200930-carnot-battery.html
 | access-date = 29 Oct 2020
 | archive-date = October 23, 2020
 | archive-url = https://web.archive.org/web/20201023081147/https://www.german-energy-solutions.de/GES/Redaktion/EN/News/2020/20200930-carnot-battery.html
 | url-status = live
 }}</ref>
 
<ref name="DOE Global Energy Storage Database">[http://www.energystorageexchange.org/ DOE Global Energy Storage Database] {{Webarchive|url=https://web.archive.org/web/20131113220029/http://www.energystorageexchange.org/ |date=November 13, 2013 }}, [[United States Department of Energy]], Office of Electricity and Sandia National Labs.</ref>

<ref name="DumontFrate2020">{{cite journal
 | last1=Dumont | first1=Olivier | last2=Frate | first2=Guido Francesco
 | last3=Pillai | first3=Aditya | last4=Lecompte | first4=Steven
 | last5=De paepe | first5=Michel | last6=Lemort|first6=Vincent
 | title=Carnot battery technology: A state-of-the-art review
 | journal=Journal of Energy Storage|volume=32|year=2020|pages=101756
 | issn=2352-152X|doi=10.1016/j.est.2020.101756| bibcode=2020JEnSt..3201756D | hdl=2268/251473 | s2cid=225019981 | url=https://biblio.ugent.be/publication/8675786 | hdl-access=free}}</ref>
<ref name="Economist-2012.03.03">[http://www.economist.com/node/21548495 Packing Some Power: Energy Technology: Better ways of storing energy are needed if electricity systems are to become cleaner and more efficient] {{Webarchive|url=https://web.archive.org/web/20140707040818/http://www.economist.com/node/21548495 |date=July 7, 2014 }}, ''[[The Economist]]'', March 3, 2012</ref>

<ref name=EconomistPSH>{{cite news|url=http://www.economist.com/node/21548495?frsc=dg%7Ca|title=Energy storage – Packing some power|newspaper=[[The Economist]]|date=March 3, 2011|access-date=March 11, 2012|archive-date=March 6, 2020|archive-url=https://web.archive.org/web/20200306081719/https://www.economist.com/technology-quarterly/2012/03/03/packing-some-power|url-status=live}}</ref>

<ref name="ECNMag.com-2014.05.02">[http://www.ecnmag.com/news/2014/05/new-supergen-hub-set-uks-energy-storage-course New SUPERGEN Hub to set UK's energy storage course] {{Webarchive|url=https://web.archive.org/web/20140508030622/http://www.ecnmag.com/news/2014/05/new-supergen-hub-set-uks-energy-storage-course |date=May 8, 2014 }}, ECNMag.com website, May 2, 2014.</ref>

<ref name=Elton>{{cite web |url=http://www.elton-cap.com/products/capacitor-cells/ |title=Capacitor cells – ELTON |publisher=Elton-cap.com |access-date=May 29, 2013 |url-status=dead |archive-url=https://web.archive.org/web/20130623101014/http://www.elton-cap.com/products/capacitor-cells/ |archive-date=June 23, 2013 }}</ref>

<ref name="Engineer-Poet">Engineer-Poet. [http://ergosphere.blogspot.com/2005/06/zinc-miracle-metal.html Ergosphere Blog, Zinc: Miracle metal?<!-- Bot generated title -->] {{Webarchive|url=https://web.archive.org/web/20070814054357/http://ergosphere.blogspot.com/2005/06/zinc-miracle-metal.html |date=August 14, 2007 }}, June 29, 2005.</ref>

<ref name="EPA-2002.a">[http://www.eere.energy.gov/afdc/pdfs/epa_fischer.pdf Clean Alternative Fuels: Fischer-Tropsch] {{Webarchive|url=https://web.archive.org/web/20070710110040/http://www.eere.energy.gov/afdc/pdfs/epa_fischer.pdf |date=July 10, 2007 }}, Transportation and Air Quality, Transportation and Regional Programs Division, [[United States Environmental Protection Agency]], March 2002.</ref>

<ref name="Frackowiak1">{{cite journal|doi=10.1016/S0008-6223(00)00183-4|title= Carbon materials for the electrochemical storage of energy in Capacitors |journal=Carbon|volume=39|issue=6|pages=937–950|year=2001|last1=Frackowiak|first1=Elzbieta|author1-link=Elżbieta Frąckowiak|last2=Béguin|first2=François|bibcode= 2001Carbo..39..937F }}</ref>

<ref name="Freep-2004.03.18">[http://science.slashdot.org/article.pl?sid=05/04/03/2335206&from=rss Slashdot: Car Powered by Compressed Air] {{Webarchive|url=https://web.archive.org/web/20200728083051/http://science.slashdot.org/article.pl?sid=05%2F04%2F03%2F2335206&from=rss |date=July 28, 2020 }}, Freep.com website, 2004.03.18</ref>

<!--<ref name="GreenEnergyNews-2005.05.01.Vol10.No.6">[http://www.green-energy-news.com/arch/nrgs2005/20050081.html Home heat and power: Fuel cell or combustion engine], GreenEnergyNews.com website, May 1, 2005, Vol.10 No.6.</ref>-->

<ref name="Halper">{{cite tech report |author= Marin S. Halper, James C. Ellenbogen |title= Supercapacitors: A Brief Overview |publisher= MITRE Nanosystems Group |date= March 2006 |url= http://www.mitre.org/sites/default/files/pdf/06_0667.pdf |access-date= January 20, 2014 |archive-url= https://web.archive.org/web/20140201231754/http://www.mitre.org/sites/default/files/pdf/06_0667.pdf |archive-date= February 1, 2014 |url-status= dead }}</ref>

<ref name="Hassenzahl">Hassenzahl, W.V., "Applied Superconductivity: Superconductivity, An Enabling Technology For 21st Century Power Systems?", IEEE Transactions on Magnetics, pp. 1447–1453, Vol. 11, Iss. 1, March 2001.</ref>

<ref name=heco>[http://www.heco.com/portal/site/heco/menuitem.508576f78baa14340b4c0610c510b1ca/?vgnextoid=94600420af0db110VgnVCM1000005c011bacRCRD&vgnextchannel=ab020420af0db110VgnVCM1000005c011bacRCRD&vgnextfmt=default&vgnextrefresh=1&level=0&ct=article Energy Storage] {{webarchive|url=https://web.archive.org/web/20140407064054/http://www.heco.com/portal/site/heco/menuitem.508576f78baa14340b4c0610c510b1ca/?vgnextoid=94600420af0db110VgnVCM1000005c011bacRCRD&vgnextchannel=ab020420af0db110VgnVCM1000005c011bacRCRD&vgnextfmt=default&vgnextrefresh=1&level=0&ct=article |date=April 7, 2014 }} ''[[Hawaiian Electric Company]]''. Accessed: February 13, 2012.</ref>

<ref name="Hellström">Hellström, G. (May 19, 2008), ''Large-Scale Applications of Ground-Source Heat Pumps in Sweden,'' IEA Heat Pump Annex 29 Workshop, Zurich.</ref>

<ref name="HVNPlus">[http://www.hvnplus.co.uk/news/supergen-hub-to-set-the-direction-of-the-uks-energy-storage/8662163.article SUPERGEN hub to set the direction of the UK's energy storage] {{Webarchive|url=https://web.archive.org/web/20140509000932/http://www.hvnplus.co.uk/news/supergen-hub-to-set-the-direction-of-the-uks-energy-storage/8662163.article |date=May 9, 2014 }}, HVNPlus.co.uk website, May 6, 2014. Retrieved May 8, 2014.</ref>

<ref name="Hyunder">{{Cite web|url=http://www.hyunder.eu/images/Deliverables/D3.3_Benchmarking%20of%20selected%20storage%20options.pdf|title=Benchmarking of selected storage options}}{{Dead link|date=May 2025 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>

<ref name="Hyunder.eu-b">{{Cite web|url=http://www.hyunder.eu/images/Presentations%20EUSEW/2%20HyUnder%20EUSEW%20workshop%20Luis%20Correas.pdf|title=Storing renewable energy: Is hydrogen a viable solution?}}{{Dead link|date=May 2025 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>

<ref name="Hyweb.de">{{Cite web|url=http://www.hyweb.de/Knowledge/Ecn-h2a.html|title=HyWeb – The LBST Information Portal on Hydrogen and Fuel Cells|website=hyweb.de|access-date=September 28, 2008|archive-date=January 2, 2004|archive-url=https://web.archive.org/web/20040102122446/http://www.hyweb.de/Knowledge/Ecn-h2a.html|url-status=live}}</ref>

<ref name="Ingebretsen-Johansen">{{cite journal
 |title        = The Potential of Pumped Hydro Storage in Norway (abstract)
 |url          = https://www.nhh.no/Admin/Public/DWSDownload.aspx?File=/Files/Filer/institutter/for/conferences/beeer/2013/abstracts/Ingebretsen-Johansen.pdf
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 |date         = July 16, 2013
 |author1      = Erik Ingebretsen
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<ref name="Kernan">Kernan, Aedan. [http://www.leonardo-energy.org/storing-energy-rail-tracks Storing Energy on Rail Tracks] {{Webarchive|url=https://web.archive.org/web/20140412182442/http://www.leonardo-energy.org/storing-energy-rail-tracks |date=April 12, 2014 }}, Leonardo-Energy.org website, October 30, 2013</ref>

 <ref name = Kraemer2019>{{cite web
 | title = Make Carnot Batteries with Molten Salt Thermal Energy Storage in ex-Coal Plants
 | url = https://www.solarpaces.org/make-carnot-batteries-with-molten-salt-thermal-energy-storage-from-ex-coal-plants/
 | date = 16 April 2019
 | author = Susan Kraemer
 | publisher = SolarPACES
 | access-date = October 31, 2020
 | archive-date = October 30, 2020
 | archive-url = https://web.archive.org/web/20201030141956/https://www.solarpaces.org/make-carnot-batteries-with-molten-salt-thermal-energy-storage-from-ex-coal-plants/
 | url-status = live
 }}</ref>
 
<ref name=LAES2012>{{Cite web|date=May 2012|title=Electricity Storage|url=https://custom.cvent.com/2A4273FF30A84F3194B3668DAC5E13F7/files/d6022910c6e749d5908ef249bfa2d640.pdf|publisher=Institute of Mechanical Engineers|access-date=October 31, 2020|archive-date=January 10, 2020|archive-url=https://web.archive.org/web/20200110215543/https://custom.cvent.com/2A4273FF30A84F3194B3668DAC5E13F7/files/d6022910c6e749d5908ef249bfa2d640.pdf|url-status=live}}</ref>

<ref name=LAES2019>{{Cite news|url=https://www.environmentalleader.com/2019/12/liquid-air-energy-storage-first/|title=First Long-Duration Liquid Air Energy Storage System Planned for the US|last=Danigelis|first=Alyssa|date=2019-12-19|newspaper=Environment+Energy Leader|language=en-US|access-date=2019-12-20|archive-date=November 4, 2020|archive-url=https://web.archive.org/web/20201104180220/https://www.environmentalleader.com/2019/12/liquid-air-energy-storage-first/|url-status=live}}</ref>

<ref name=Levine>Levine, Jonah G. [http://www.colorado.edu/engineering/energystorage/files/MSThesis_JGLevine_final.pdf Pumped Hydroelectric Energy Storage and Spatial Diversity of Wind Resources as Methods of Improving Utilization of Renewable Energy Sources] {{Webarchive|url=https://web.archive.org/web/20140801113053/http://www.colorado.edu/engineering/energystorage/files/MSThesis_JGLevine_final.pdf |date=August 1, 2014 }} page 6, [[University of Colorado]], December 2007. Accessed: February 12, 2012.</ref>

<ref name="Loisel et al">{{cite journal | last1 = Loisel | first1 = Rodica | last2 = Mercier | first2 = Arnaud | last3 = Gatzen | first3 = Christoph | last4 = Elms | first4 = Nick | last5 = Petric | first5 = Hrvoje | year = 2010| title = Valuation framework for large scale electricity storage in a case with wind curtailment | journal = Energy Policy | volume = 38 | issue = 11| pages = 7323–7337 | doi = 10.1016/j.enpol.2010.08.007 | bibcode = 2010EnPol..38.7323L }}</ref>

<ref name="Milwaukee Journal Sentinel-2014.05.05">Content, Thomas. [http://www.jsonline.com/business/johnson-controls-uw-open-energy-storage-systems-test-lab-in-madison-b99262516z1-258043381.html Johnson Controls, UW Open Energy Storage Systems Test Lab In Madison] {{Webarchive|url=https://web.archive.org/web/20140508042902/http://www.jsonline.com/business/johnson-controls-uw-open-energy-storage-systems-test-lab-in-madison-b99262516z1-258043381.html |date=May 8, 2014 }}, Milwaukee, Wisconsin: ''[[Milwaukee Journal Sentinel]]'', May 5, 2014.</ref>

<ref name="Miller">Miller, Charles.  ''[https://books.google.com/books?id=RSsJAAAAQBAJ&pg=PA445 Illustrated Guide to the National Electrical Code] {{Webarchive|url=https://web.archive.org/web/20200819211120/https://books.google.com/books?id=RSsJAAAAQBAJ&pg=PA445 |date=August 19, 2020 }}'', p. 445 (Cengage Learning 2011).</ref>

<ref name="NaturalResourcesCan">Oprisan, Morel. [http://www.ieawind.org/wnd_info/KWEA_pdf/Oprisan_KWEA_.pdf Introduction of Hydrogen Technologies to Ramea Island] {{webarchive|url=https://web.archive.org/web/20160730110344/http://www.ieawind.org/wnd_info/KWEA_pdf/Oprisan_KWEA_.pdf |date=July 30, 2016 }}, CANMET Technology Innovation Centre, [[Natural Resources Canada]], April 2007.</ref>

<ref name="NégaWatt">{{cite web|url=http://www.negawatt.org/scenario-negawatt-2011-p46.html|title=Association négaWatt – Scénario négaWatt 2011|access-date=October 19, 2011|archive-url=https://web.archive.org/web/20120105152711/http://www.negawatt.org/scenario-negawatt-2011-p46.html|archive-date=January 5, 2012|url-status=dead}}</ref>

<!-- <ref name="NYTimes-1991.09.29">Wald, Matthew L. [https://www.nytimes.com/1991/09/29/business/technology-using-compressed-air-to-store-up-electricity.html Using Compressed Air To Store Up Electricity], ''[[The New York Times]]'', September 29, 1991. Discusses the McIntosh CAES storage facility.</ref> -->

<ref name="NYTimes-2010.07.07">Wald, Matthew, L. [http://green.blogs.nytimes.com/2010/07/07/sudden-surplus-calls-for-quick-thinking/ Sudden Surplus Calls for Quick Thinking] {{Webarchive|url=https://web.archive.org/web/20140606204548/http://green.blogs.nytimes.com/2010/07/07/sudden-surplus-calls-for-quick-thinking/ |date=June 6, 2014 }}, ''[[The New York Times]]'' online website, July 7, 2010.</ref>

<ref name="NYTimes-2010.07.28">Wald, Matthew, L. [https://www.nytimes.com/2010/07/28/business/energy-environment/28storage.html Wind Drives Growing Use of Batteries] {{Webarchive|url=https://web.archive.org/web/20191205102332/https://www.nytimes.com/2010/07/28/business/energy-environment/28storage.html |date=December 5, 2019 }}, ''[[The New York Times]]'', July 28, 2010, p. B1.</ref>

<ref name="NYTimes-2011.11.05">Wald, Matthew L. [https://www.nytimes.com/2011/11/05/business/energy-environment/as-wind-energy-use-grows-utilities-seek-to-stabilize-power-grid.html?pagewanted=all&_r=0 Taming Unruly Wind Power] {{Webarchive|url=https://web.archive.org/web/20121202231507/http://www.nytimes.com/2011/11/05/business/energy-environment/as-wind-energy-use-grows-utilities-seek-to-stabilize-power-grid.html?pagewanted=all&_r=0 |date=December 2, 2012 }}, ''[[The New York Times]]'', November 4, 2011, and in print on November 5, 2011, p. B1 of the New York edition.</ref>

<ref name="NYTimes-2012.01.03">Wald, Matthew. [http://green.blogs.nytimes.com/2012/01/03/the-convoluted-economics-of-storing-energy/ Green Blog: The Convoluted Economics of Storing Energy] {{Webarchive|url=https://web.archive.org/web/20130402102457/http://green.blogs.nytimes.com/2012/01/03/the-convoluted-economics-of-storing-energy/ |date=April 2, 2013 }}, ''[[The New York Times]]'', January 3, 2012.</ref>

<ref name="NYTimes-2012.10.01">Gies, Erica. [https://www.nytimes.com/2012/10/02/business/energy-environment/a-storage-solution-is-in-the-air.html?pagewanted=all Global Clean Energy: A Storage Solution Is in the Air] {{Webarchive|url=https://web.archive.org/web/20190508092207/https://www.nytimes.com/2012/10/02/business/energy-environment/a-storage-solution-is-in-the-air.html?pagewanted=all |date=May 8, 2019 }}, ''[[International Herald Tribune]]'' online website, October 1, 2012, and in print on October 2, 2012, in The International Herald Tribune. Retrieved from NYTimes.com website, March 19, 2013.</ref>

<!-- <ref name="NYTimes-2013.07.17">{{cite news
  | title=Battery Seen as Way to Cut Heat-Related Power Losses
  | url=https://www.nytimes.com/2013/07/17/business/energy-environment/battery-seen-as-way-to-cut-heat-related-power-losses.html
  | access-date=July 17, 2013
  | newspaper=The New York Times
  | date=July 16, 2013
  | author=Diane Cardwell}}</ref> -->

<ref name="NYTimes-2013.10.13">Galbraith, Kate. [https://www.nytimes.com/2013/10/03/business/energy-environment/Filling-the-Gaps-in-the-Flow-of-Renewable-Energy.html Filling the Gaps in the Flow of Renewable Energy] {{Webarchive|url=https://web.archive.org/web/20170410212050/http://www.nytimes.com/2013/10/03/business/energy-environment/Filling-the-Gaps-in-the-Flow-of-Renewable-Energy.html |date=April 10, 2017 }}, ''[[The New York Times]]'', October 22, 2013.</ref>

<ref name="NYTimes-2014.04.21">Wald, Matthew L. [https://www.nytimes.com/2014/04/22/business/energy-environment/ice-or-molten-salt-not-batteries-to-store-energy.html Ice or Molten Salt, Not Batteries, to Store Energy] {{Webarchive|url=https://web.archive.org/web/20201112021117/https://www.nytimes.com/2014/04/22/business/energy-environment/ice-or-molten-salt-not-batteries-to-store-energy.html |date=November 12, 2020 }},  ''[[The New York Times]]'' website, April 21, 2014, and in print on April 22, 2014, p. F7 of the New York edition. Retrieved May 29, 2014.</ref>

<ref name="Physics.org.a">Aschenbrenner, Norbert. [http://phys.org/news/2014-05-automated-battery-production.html Test Plant For Automated Battery Production] {{Webarchive|url=https://web.archive.org/web/20140508224655/http://phys.org/news/2014-05-automated-battery-production.html |date=May 8, 2014 }}, Physics.org website, May 6, 2014. Retrieved May 8, 2014.</ref>

<ref name="PhysOrg.com-news-85074285">{{cite news
 |first        = Lisa
 |last         = Zyga
 |title        = Why A Hydrogen Economy Doesn't Make Sense
 |date         = December 11, 2006
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