SECTION 01 | ENERGY 22 07 SILICON-AIR BATTERY REACHES A DURATION OF OVER 1000 HOURS FOR THE FIRST TIME The development of energy storage capabilities is crucial for the integration of renewables into the power grid or in off-grid areas. Silicon-air batteries have the potential to outperform current technology. They have a much higher energy density, are smaller and lighter than today’s lithium- ion batteries, as well as being environmentally friendly and insensitive to external influences. Silicon is also relatively low-cost and almost indefinitely available. On the downside, silicon-air batteries have a relatively short runtime The AlSiBat project is seeking to overcome this. Having discovered this weakness was caused by the consumption of the electrolyte, a pump system was developed to refill the electrolyte fluid as required achieving a runtime of over 1,100 hours. Ways to keep the battery running without refilling the electrolyte are now being explored. GERMANY SECTION 01 23 08 DEVELOPMENT AND DEMONSTRATION OF AN IOT-BASED CAMPUS MICROGRID AT SEOUL NATIONAL UNIVERSITY Seoul National University has developed an Internet of Things- based campus microgrid. It uses various resources including renewable energy to optimise power consumption and save energy. The microgrid analyses the characteristics of each load to develop precise campus models. Supplying surplus power from one microgrid to another microgrid manages the power consumption of the entire grid system, especially during peak demand. At the same time, technologies for effective load management and economic grid management can be developed. In the future, demonstration of microgrids needs to be conducted in a wide variety of conditions so that the economics and reliability of the campus microgrids model can be thoroughly verified. KOREA SMART GRIDS & ENERGY STORAGE