Despite substantial market growth and momentum in the past 2 years, the commercial and industrial (CAndI) energy storage market remains in its infancy throughout most of the world. As a result of their dynamic operation, energy storage systems (ESSs) for CAndI buildings are both poorly understood and undervalued by many stakeholders in the industry. Notwithstanding these challenges, there is significant momentum in the industry, including regulatory reforms and technological advances, that will help bring CAndI energy storage into the mainstream. The landscape of vendors offering CAndI ESSs is growing increasingly diverse and competitive. Vendors are approaching the market from a variety of different angles, and partnerships are forming to help companies leverage their strengths. Incumbent building energy management providers are competing with startups in this market to offer compelling solutions for various customers. The solutions and business models offered to different customers vary considerably across building types and regions, leading to a complex industry that will evolve rapidly. According to Navigant Research, global CAndI ESS power capacity deployments are expected to grow from 499.4 MW in 2016 to 9.1 GW in 2025. This Navigant Research report analyzes the global market for CAndI energy storage, with a focus on advanced lead-acid, flow, and lithium ion (Li-ion) batteries. The study provides an overview of the market developments, technology trends, and business models that are converging to drive significant growth in this space during the next 10 years. A particular emphasis is placed on the energy storage issues that vendors must consider for the nine unique building types covered in this report. Global market forecasts for capacity and revenue, segmented by building type, technology, and region, extend through 2025.