Energy storage systems are not just an optional add-on but are an essential enabler for achieving truly zero-carbon commercial complexes. They provide the flexibility, control, and reliability needed to integrate renewable energy, optimize energy consumption, and ensure a sustainable and resilient future for commercial properties. The specific application and type of ESS chosen will depend on the complex's specific energy needs, location, and budget, but the fundamental role of ESS in facilitating zero-carbon operations is clear.