By combining technical insights with real-world case studies and techno-economic evaluations, this paper aims to accelerate the deployment of next-generation TES solutions for a resilient, low-carbon energy future. . In high-temperature TES, energy is stored at temperatures ranging from 100°C to above 500°C. High-temperature technologies can be used for short- or long-term storage, similar to low-temperature technologies, and they can also be categorised as sensible, latent and thermochemical storage of heat. . Energy Res., 27 August 2025 Thermal energy storage (TES) technologies are emerging as key enablers of sustainable energy systems by providing flexibility and efficiency in managing thermal resources across diverse applications. These devices include molten salt storage systems, 2. advanced. . To enhance electric power resilience (robustness to endure a significant and sudden unbalance between supply and demand while regulating reserve capabilities) in line with the increasing use of renewable energy, thermal storage systems are incorporated into the turbine bypass system, etc.