Terra Steward, Inc.

Terra Steward, Inc., also known as Terra Steward Energy Group (TSEG), is a fully integrated renewable energy company headquartered in San Diego County, California. Founded in 2004, TSEG specializes in delivering efficient solar and storage solutions primarily to commercial and industrial customers through its subsidiaries such as Foshay Solar Energy, Power Park Energy, and Power Port Energy. The company boasts over a century of combined experience across energy generation and storage sectors.
TSEG’s comprehensive offerings span the entire project lifecycle—from development to engineering/procurement/construction (EPC), financing options tailored for clients’ needs, system installation/management services for renewable energy assets—including both standard solar installations as well as custom-designed carport structures that integrate advanced technology solutions. A notable aspect of their portfolio is their scalable NiZn battery technology: these compact systems are wall-mountable with multi-functionality including bi-directional power flow—addressing modern demands for flexible onsite energy storage.
The company positions itself not just as an installer but also an educator—providing hands-on experiences with green technologies at its facilities to help consumers make informed decisions about going green. Their market focus includes consumers ranging from small businesses to local governments seeking sustainable alternatives.