The Calistoga Resiliency Center in California is now home to the world's largest utility-scale, ultra-long duration energy storage project. With a history of being threatened by wildfires, the town of Calistoga has transitioned to a unique energy system that combines hydrogen fuel cells and batteries. The project, built by Energy Vault, provides the town with a clean and reliable backup power source capable of sustaining the city for about two days. The system not only ensures power during emergencies but also has the potential to support the electric grid regularly, contributing to a more sustainable energy future. Calistoga's shift from traditional diesel generators to hydrogen fuel cells has been met with enthusiasm by residents and experts alike. Lisa Gift, a city council member, highlighted the importance of moving away from fossil fuels, especially in the face of worsening wildfires due to climate change. Energy Vault's innovative solution has garnered praise for its environmental benefits and efficiency. The development of this energy storage project represents a significant milestone in the journey towards cleaner and more resilient communities. By embracing hydrogen fuel cells and batteries, Calistoga has set an example for other towns and cities looking to enhance their emergency preparedness and combat climate change. The collaboration between Energy Vault, Plug Power, and local authorities showcases the potential of sustainable technologies in ensuring a secure and eco-friendly energy supply for all residents.