Batteries are taking on an increasingly important role in decentralized energy systems and constitute the heart of off-grid systems. They can also be increasingly found in on-grid systems, where they can cut energy purchase costs by means of increased self-consumption or peak load shaving. Battery monitoring plays a key role here. After all, PV system operators want to know whether their systems are actually working as intended, because downtime costs money and causes hassle. That is why SMA is offering a comprehensive upgrade for battery analysis via ennexOS.