Evaluating a commercial solar proposal requires looking far beyond first-year energy savings. This comprehensive guide outlines the essential financial, legal, and operational factors building owners must review before committing to a 20-year agreement. Learn how to navigate the long-term complexities of system ownership, annual price escalators, roof maintenance responsibilities, production guarantees, and the shifting 2026–2027 federal tax incentive landscape to ensure your solar investment delivers true long-term value.