Overview

IHI Terrasun Solutions provides end-to-end battery energy storage systems (BESS) and solar-plus-storage solutions for utilities, renewable developers, and grid operators across North America. Its approach combines engineering and system integration with proprietary software, long-term service agreements, and unique procurement capabilities to deliver lifecycle services from deployment to ongoing operation. Core offerings include Assured Controls™, a software platform that manages batteries and inverters and enables grid functions, and Assured Procurement™, which streamlines direct battery procurement to reduce costs and risk. The company differentiates itself as a technology-agnostic system integrator that integrates hardware, software, and services to optimize performance, cost, and grid services over the life of a project.