Integrators of Battery Energy Storage Systems (BESS) are positioned at the very core of the value chain for large-scale energy storage systems. Their decisions such which BESS component design to use, which product and software portfolio to offer or which supply chain approach to be taken very well reflect the requirements and trends in the energy storage market.In this panel session, some of the industry's leading BESS integrators and developers will be discussing the developments, opportunities and challenges of the energy storage market, and which BESS products and business models are best suited to address them today and in the future.