Core Insights - The emergence of molten salt energy storage technology is transforming energy storage and utilization, becoming a key support for new power systems due to its large-scale, long-duration, and low-cost advantages [1][6] - The first operational molten salt energy storage power plant marks a significant transition from theory to practice for this technology [3][5] Technology Characteristics - Molten salt energy storage utilizes a mixture of nitrates, such as 60% sodium nitrate and 40% potassium nitrate, which has a low melting point, high thermal stability, and a remarkable specific heat capacity of approximately 1.5 kJ per kg, over three times that of water [3][5] - The power plant employs a dual-tank thermal storage system, where excess electricity heats solid molten salt to 565°C during low demand periods, storing it in a hot salt tank for later use during peak demand [3][5] Innovations and Efficiency - Research teams have innovated to address challenges such as low-temperature solidification and high-temperature corrosion, reducing the melting point from 220°C to 190°C and enhancing equipment corrosion resistance [5] - The energy storage efficiency of the molten salt power plant exceeds 90%, with a daily storage duration of up to 12 hours, significantly surpassing traditional energy storage technologies [5] Commercial Applications - The commercial value of molten salt energy storage has been validated in various sectors, including a solar thermal project in Gansu that can achieve 24-hour continuous power generation, reducing coal consumption by 600,000 tons annually [5] - In flexible coal power modifications, a project in Anhui has improved peak-shaving capabilities, allowing for the consumption of 128 million kWh of renewable energy each year [5] Future Outlook - By 2030, China's molten salt energy storage capacity is expected to exceed 16 GW, with total investments surpassing 200 billion yuan, expanding applications to industrial waste heat recovery and integrated energy services [6] - Continuous technological advancements and cost reductions are anticipated to further unlock the potential of molten salt energy storage, positioning it as a cornerstone for new power systems and supporting the transition to a zero-carbon future [6]