Off Grid Solar Works is a division of Antara Ltd., a Nevada LLC with a rich history in technology development dating back to the 1990s. Initially, Antara focused on international project development, partnering with a company in Malaysia. However, in 2010, the company pivoted to concentrate exclusively on solar energy. During the early years of the American Recovery and Reinvestment Act (ARRA), Antara played a key role in the start - up manufacturing of ARRA - compliant solar panels, utilizing offshore components. The company also ventured into the emerging field of U.S. - based lithium battery manufacturing for the off - grid market, which ultimately led to its specialization in off - grid solar solutions. Over the past fifteen years, Antara has de signed hundreds of off - grid systems, utilizing a wide array of inverters, panels, and batteries. The company has also provided extensive technical support for the repair and maintenance of existing off - grid systems. Throughout this time, Antara developed proprietary software specifically for designing off - grid projects. This software has evolved into a sophisticated planning tool, incorporating insights from hundreds of real - life installations. Branded as the Off Grid System Estimator — or simply, "the Estim ator" — this tool generates detailed charts, graphs, and summary reports that simplify the process of balancing system components, adjusting for seasonal appliance loads, and accommodating customer lifestyle preferences. All of this is backed by location -specific data from NREL PVWatts