Samsung SDI America has signed an agreement to supply 1 GWh of battery energy storage systems to Alpha Omega Power. The deal takes the companies’ combined agreements to 1.5 GWh. Samsung SDI will deliver Indiana-made SBB 1.7 systems for utility-scale projects in the WECC and ERCOT markets by the end of 2026.
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South Korean battery and electronic-materials manufacturer Samsung SDI has announced a 1 GWh battery energy storage system (BESS) supply agreement with Alpha Omega Power (AOP). The US company develops, owns and operates utility-scale storage projects. Samsung SDI’s Michigan-based subsidiary, Samsung SDI America, signed the agreement, which was announced on October 26, 2026.
The companies signed an initial supply contract in late 2025. The latest agreement takes their combined contracted volume to 1.5 GWh. AOP plans to use the systems in utility-scale storage projects in the Western Electricity Coordinating Council (WECC) and Electric Reliability Council of Texas (ERCOT) markets. Project construction the scheduled to begin in 2027.
Under the agreement, Samsung SDI will supply its Samsung Battery Box (SBB) 1.7, an integrated BESS using high-nickel nickel cobalt aluminum (NCA) prismatic cells. All cells and modules will be produced at the StarPlus Energy plant in Kokomo, Indiana. Deliveries are due by the end of 2026.
Samsung SDI says the SBB 1.7 offers 17% higher energy density than the SBB 1.5 while retaining a 20-foot container footprint. Its software uses algorithms for early anomaly detection and battery-life prediction. The company says the system is designed for 25 years of continuous use; it did not disclose the operating profile, cycling assumptions or augmentation requirements behind that claim.
Samsung SDI says the SBB 1.7 has obtained certifications and meets safety standards including UL 9540 and NFPA 855. NFPA 855 is an installation standard rather than a product certification.
The system also uses Samsung SDI’s Enhanced Direct Injection technology to inject fire-suppression agent into individual battery modules. AOP CEO Paul Choi said the second agreement strengthens the company’s domestic supply chain for new energy infrastructure.
