Calistoga, a town in California's Napa Valley, is shifting to a revolutionary energy system combining hydrogen fuel cells and batteries to power the city for up to two days. Developed by Energy Vault, the facility aims to provide clean backup power in emergencies and support the electric grid year-round. Residents express gratitude for the transition to clean energy, highlighting the need to combat climate change and increase resilience against wildfires. The installation, featuring hydrogen fuel cells and lithium-ion batteries, is set to replace traditional diesel generators previously used by PG&E, offering a sustainable and emissions-free solution. Energy Vault's CEO envisions the system as a model for other communities and industries, promoting sustainable energy practices. The project represents a significant step towards reducing reliance on fossil fuels and embracing green hydrogen technology. With safety measures in place and collaboration with local authorities, Calistoga is poised to benefit from a cleaner and more resilient energy infrastructure, ensuring power during outages and emergencies.