The Ararat synchronous condenser, Australia's largest of its kind, has commenced testing in western Victoria. Weighing 150 tonnes, it will help stabilize the electricity grid by providing inertia, which is essential for managing frequency fluctuations. This technology, dating back to the 1950s, is becoming increasingly important as Australia transitions to renewable energy. The Ararat syncon is expected to unlock an additional 600MW of renewable energy in the region. It operates using a small amount of electricity and replaces the stabilizing qualities of traditional generators without emissions. The Australian Energy Market Operator anticipates that a mix of synchronous condensers, batteries, and advanced inverters will ensure system security in a renewable-dominated grid.