Weights-Based Gravity Energy Storage Looks to Scale Up

[1]	Energy Vault Holdings, Inc., begins trading on the New York Stock Exchange [Internet]. San Francisco: Business Wire; 2022 Feb 14 [cited 2022 Mar 31]. Available from: https://www.businesswire.com/news/home/202202 14005285/en/Energy-Vault-Holdings-Inc.-Begins-Trading-on-the-New-YorkStock-Exchange.

[2]

Energy Vault announces appointments to its board of directors and formation of new strategic advisory board [Internet]. San Francisco: Business Wire; 2022 Feb 24 [cited 2022 Mar 31]. Available from: https://www.businesswire.com/ news/home/20220224005343/en/Energy-Vault-Announces-Appointments-toIts-Board-of-Directors-and-Formation-of-New-Strategic-Advisory-Board.

[3]

Energy Vault announces energy storage agreement with DG fuels to provide 1.6 GWh of energy storage capacity in support of sustainable aviation fuel projects [Internet]. San Francisco: Business Wire; 2021 October 27 [cited 2022 Mar 31]. Available from: https://www.businesswire.com/news/home/20211027005554/ en/Energy-Vault-Announces-Energy-Storage-Agreement-with-DG-Fuels-toProvide-1.6-GWh-of-Energy-Storage-Capacity-In-Support-of-Sustainable-AviationFuel-Projects.

[4]

Energy Vault announces strategic agreement with BHP to support decarbonization of natural resources production [Internet]. San Francisco: Business Wire; 2021 Dec 15 [cited 2022 Mar 31]. Available from: https://www. businesswire.com/news/home/20211215005317/en/Energy-Vault-AnnouncesStrategic-Agreement-With-BHP-to-Support-Decarbonization-of-Natural-ResourcesProduction.

[5]	Saudi Aramco Energy Ventures Invests in energy vault [Internet]. San Francisco: Business Wire; 2021 Jun 2 [cited 2022 Mar 31]. Available from: https://www.businesswire.com/news/home/20210602005350/en/Saudi-AramcoEnergy-Ventures-Invests-in-Energy-Vault.

[6]	Gravitricity Projects—renewable energy storage [Internet]. London: Gravitricity [cited 2022 Mar 31]. Available from: https://gravitricity.com/projects/.

[7]

Longer duration energy storage demonstration programme [Internet]. London: UK Government; 2022 Feb 23 [cited 2022 Mar 31]. Available from: https://www. gov.uk/government/publications/longer-duration-energy-storage-demonstrationprogramme-successful-projects/longer-duration-energy-storage-demonstrationprogramme-stream-1-phase-1-details-of-successful-projects.

[8]	Utility-scale batteries and pumped storage return about 80% of the electricity they store [Internet]. Washington, DC: US Energy Information Administration; 2021 Feb 12 [cited 2022 Mar 31]. Available from: https://www. eia.gov/todayinenergy/detail.php?id=46756.

[9]	EV1 commercial demonstration unit [Internet]. Lugano: Energy Vault; [cited 2022 Mar 31]. Available from: https://www.energyvault.com/cdu.

[10]	Blakers A, Stocks M, Lu B, Cheng C. A review of pumped hydro energy storage. Prog Energy 2021;3:022003.

[11]	O’Neill S. Giant turbines poised to claim offshore wind. Engineering 2021;7:894–6.

[12]	O’Neill S. Perovskite pushes solar cells to record efficiency. Engineering 2021;7:1037–40.

[13]	Leonard MD, Michaelides EE, Michaelides DN. Energy storage needs for the substitution of fossil fuel power plants with renewables. Renew Energy 2020;145:951–62.

[14]	Executive summary—hydropower special market report—analysis [Internet]. Paris: International Energy Agency; 2021 July [cited 2022 Mar 31] Available from: https://www.iea.org/reports/hydropower-special-market-report/ executive-summary.

[15]	Introducing megapack: utility-scale energy storage [Internet]. Austin: Tesla Inc; 2019 Jul 29 [cited 2022 Mar 31]. Available from: https://www.tesla.com/ blog/introducing-megapack-utility-scale-energy-storage.

[16]	Global energy storage market set to hit one terawatt-hour by 2030 [Internet]. London: BloombergNEF; 2021 Nov 15 [cited 2022 Mar 31]. Available from: https://about.bnef.com/blog/global-energy-storage-marketset-to-hit-one-terawatt-hour-by-2030.

[17]	Stover D. We’re going to need a lot more grid storage. New iron batteries could help [Internet]. Cambridge: MIT Technology Review; 2022 Feb 23 [cited 2022 Mar 31]. Available from: https://www.technologyreview.com/2022/02/23/ 1046365/grid-storage-iron-batteries-technology.

[18]	Morstyn T, Botha CD. Gravitational energy storage with weights. In: Cabeza LF, editor. Encyclopedia of energy storage. Amsterdam: Elsevier; 2022. p. 64–73.

[19]	Barnard, M. Energy vault loses $1.2 billion/40% market cap, CO2e/kWh worse than natural gas [Internet]. Long Beach: CleanTechnica; 2022 Apr 20 [cited 2022 April 27]. Available from: https://cleantechnica.com/2022/04/20/energyvault-loses-1-2-billion-40-market-cap-co2e-kwh-worse-than-natural-gas.

[20]	Gravity-based storage [Internet]. London: Storage Lab; 2018 Oct [cited 2022 Mar 31]. Available from: https://www.storage-lab.com/gravity-based-storage.

[21]	da Silva Lima L, Quartier M, Buchmayr A, Sanjuan-Delmás D, Laget H, Corbisier D, et al. Life cycle assessment of lithium-ion batteries and vanadium redox flow batteries-based renewable energy storage systems. Sustain Energy Technol Assess 2021;46:101286.

[22]	O’Neill S. Battery recycling challenge looms as electric vehicle business booms. Engineering 2021;7:1657–60.

[23]	Dehghani-Sanij AR, Tharumalingam E, Dusseault MB, Fraser R. Study of energy storage systems and environmental challenges of batteries. Renew Sustain Energy Rev 2019;104:192–208.