Energy Vault SPAC Presentation Deck

Energy Vault's Technology Meets Customer Needs and Outperforms Other Alternatives | Cost Size / Scale Flexibility Sustainability Efficiency ESG Profile ■ ENERGY VAULT ■ ■ ■ ■ H ■ I ■ Capex, opex and end-of-life Degradation ■ Ability to serve GWh / utility scale storage needs Significant localized supply chain Location and environment agnostic Operating temperature range Duration Technical life Safety (no fire/ gas risks) Round-trip Efficiency (RTE) Energy density ■ Waste remediation Local manufacturing minimizes carbon footprint Full lifecycle sustainability Source: Bloomberg NEF, DOE global storage database Per S&P Global, Tesla owns ~83% of the US lithium-ion battery capacity. Novus Capital Corporation II ENERGY VAULT Enabling a Renewable World Pumped Hydro Lithium¹ ENERGY VAULT, INC. ALL RIGHTS RESERVED Other Mech. / Thermal Energy Vault Solves Utilities' Needs 1. Low cost - levelized (Capex, Opex, EoL) 2. Highly scalable (GWh+); local supply chain (jobs+) 1 ! 3. Flexibility - power and duration (2 to 12+ hours) ! 4. No degradation in storage medium; long asset life I I 5. Safe and sustainable - no fire / chemical risk, net zero 17 2050 Global Energy Storage Market Existing Storage 3% New Storage Opportunities 97% Enabling a Renewable World

View entire presentation