<div><b><span style="font-size: 16px;">Our Company</span></b></div><div><span style="font-size: 16px;">Welcome to </span><b style="font-size: 16px;">Energy Vault® (NYSE:NRGV)</b><span style="font-size: 16px;">, a global energy storage and power infrastructure company focused on owning, operating, and enabling resilient, dispatchable energy assets. </span></div><div><span style="font-size: 16px;"> </span></div><div><span style="font-size: 16px;">Energy Vault’s focus is to deliver reliable, flexible power that supports the evolving needs of modern grids, communities, and large energy users. Since 2024, the Company has centered its strategy on an Independent Power Producer (IPP) model, developing, building, owning, and operating critical energy assets around the world. </span></div><div><span style="font-size: 16px;"> </span></div><div><span style="font-size: 16px;">Energy Vault operates globally, with headquarters in Westlake Village, California and Lugano, Switzerland, and regional development across North America, Europe, Asia, and Australia. The Company partners with utilities, grid operators, and large energy consumers to deliver infrastructure that strengthens grid reliability, enables renewable integration, and supports long-term energy security. </span></div><div><span style="font-size: 16px;"> </span></div><div><span style="font-size: 16px;">By combining asset ownership with advanced technologies and integration expertise, Energy Vault is building the next generation of critical energy infrastructure, delivering dependable power when and where it matters most. </span></div><div><span style="font-size: 16px;"> </span></div><div><span style="font-size: 16px;">Learn more at </span><a style="font-size: 16px;" href="https://www.energyvault.com/">www.energyvault.com</a><span style="font-size: 16px;">, explore recent updates in our </span><a style="font-size: 16px;" href="https://www.energyvault.com/newsroom">Newsroom,</a><span style="font-size: 16px;"> and connect with us on </span><a style="font-size: 16px;" href="https://www.linkedin.com/company/energy-vault-inc">LinkedIn</a><span style="font-size: 16px;">, </span><a style="font-size: 16px;" href="https://twitter.com/EnergyVaultInc">X</a><span style="font-size: 16px;">, </span><a style="font-size: 16px;" href="https://www.facebook.com/EnergyVaultInc">Facebook</a><span style="font-size: 16px;">, </span><a style="font-size: 16px;" href="https://www.instagram.com/energyvaultinc/">Instagram</a><span style="font-size: 16px;">, </span><a style="font-size: 16px;" href="https://vimeo.com/user91513072">Vimeo</a><span style="font-size: 16px;">, or </span><a style="font-size: 16px;" href="https://www.youtube.com/c/EnergyVaultInc">YouTube</a><span style="font-size: 16px;">. </span></div><div><b><span style="font-size: 16px;"> </span></b></div><div><b><span style="font-size: 16px;">Our Values </span></b></div><div><b><span style="font-size: 16px;">We Commit:</span></b><span style="font-size: 16px;"> To Building a Better Future for Earth and All Its Beings.</span></div><div><b><span style="font-size: 16px;">We Innovate:</span></b><span style="font-size: 16px;"> Cutting Edge Solutions to Accelerate the Unique Energy Aspirations of Our Clients.</span></div><div><b><span style="font-size: 16px;">We Connect: </span></b><span style="font-size: 16px;">To Build Genuine Relationships.</span></div><div><b><span style="font-size: 16px;">We Deliver: </span></b><span style="font-size: 16px;">Going Above & Beyond by Being Fast & Nimble.</span></div><div><b><span style="font-size: 16px;">We Lead: </span></b><span style="font-size: 16px;">With Authenticity and Purpose.</span></div><div><br></div><p><strong>Our Energetic Team:</strong></p> <p>Energy Vault Solution, a division within Energy Vault, is dedicated to delivering customer-focused energy storage products that merge Battery and Clean Hydrogen technologies. The Energy Vault Solution team also develops and manages our AI/ML powered software applications that include EMS, Lifecycle Management, and Energy Trading Platforms.</p> <div> <p><strong>Your Impact as a Intern, Power Electronics Engineering:</strong></p> <p>We are looking for a power electronics student intern with strong power system focus specialized in one of the contemporary research areas including, but not limited to energy storage, data center, DC systems, microgrid, solid-state transformer, advanced grid-interactive inverters.</p> <p>In this role, you will gain practical and technical experience on cutting-edge energy storage and data center technologies while working closely with industry experts to simulate, analyze and troubleshoot complex systems from inverter control to large scale site level controls.</p> <p>This role is estimated to be 3 months in duration with 40 hours per week.</p> </div><br /> Your Mission: <br /> <br /> <li>Help design and perform verification tests in the EMT simulation and hardware-in-the-loop (HIL) platforms.</li> <li>Collaborate with internal and external teams to determine system requirements and verify our solution will meet and exceed project requirements.</li> <br /> Your Background: <br /> <br /> <li>Pursuing a Current Masters or Ph.D. degree with relevant research focus with solid power systems/power electronics background<ins datetime="2026-05-29T14:58" cite="mailto:Jason%20Woolman">.</ins></li> <li>Strong interest in renewable energy, energy storage and data center industry<ins datetime="2026-05-29T14:58" cite="mailto:Jason%20Woolman">.</ins></li> <li>Technical knowledge of grid-forming, grid-following inverters, power plant controller, DC/DC converters and solid-state transformers.</li> <li>Experience with hardware-in-the-loop (HIL) testing, preferably OPAL-RT or other platforms such as Typhoon and RTDS<ins datetime="2026-05-29T14:59" cite="mailto:Jason%20Woolman">.</ins></li> <li>Experience working on PSCAD, PSS/E and other power system modeling software<ins datetime="2026-05-29T14:59" cite="mailto:Jason%20Woolman">.</ins></li> <li>Experience with designing, testing, analyzing, evaluating power electronics systems (AC/DC and DC/DC converters)<ins datetime="2026-05-29T14:59" cite="mailto:Jason%20Woolman">.</ins></li> <li>Experience in testing inverter control board gate drivers and protection circuits<ins datetime="2026-05-29T14:59" cite="mailto:Jason%20Woolman">.</ins></li> <li>Familiarity with power semiconductor devices SiC and IGBT<ins datetime="2026-05-29T14:59" cite="mailto:Jason%20Woolman">.</ins></li> <li>Familiarity with relevant industry standards such as UL 1741, IEEE 1547, IEEE 2800</li> <li>Experience with Matlab/Simulink, embedded control design experience in C/C++ preferably with TI C2000 DSP<ins datetime="2026-05-29T14:59" cite="mailto:Jason%20Woolman">.</ins></li> <li>Experience in voltage source inverter control interfaces such as PWM, ADC; communication interfaces IPC, CAN, ETH<ins datetime="2026-05-29T14:59" cite="mailto:Jason%20Woolman">.</ins></li> <li>No travel is required.</li> <li>Comfortable thriving in fast-paced, rapid growth environments.</li> <li>A passion for sustainability, our mission, and our vision is a bonus!</li> <li>Must successfully pass a pre-employment background check.</li> <li>Energy Vault participates in E-Verify.</li> <br /> <div><b style="font-size: 16px">Join Us in Empowering Change</b><span style="font-size: 16px"> </span></div><div><br></div><div><i><span style="font-size: 16px">At Energy Vault we are committed to providing an environment of mutual respect where equal employment opportunities are available to all applicants. We believe inclusion creates opportunity for collaborative excellence through diversity of thought. We invite individuals of all genders, races, identities, ethnicities, sexual orientations, national origins, abilities, protected veteran status, religions, educational and socioeconomic backgrounds to explore employment with our organization.</span></i></div><div><br></div><div><span style="font-size: 16px">Apply now and become a catalyst for change at Energy Vault! </span></div>