Maysteel fabricates custom enclosures and cabinets for renewable energy storage, solar inverters, hydro power and other alternative energy applications. Established in 2017, the company specializes in developing and commercializing iron-air batteries, which are designed to store electricity for up to 100 hours. Energy Storage forms part of the Energy industry, which is the 14th most popular industry and market group. Our engineers collaborate with you to ensure you'll have a buildable and scalable renewable. . Discover the perfect blend of style and functionality with our energy storage cabinets. This flexibility enables. .