With 20 offerings either approved or pending, there’s more variety but still not much choice. : Editor’s Note: This is Part II of a two-part series on utility renewable energy programs. Part I describes the rise of renewable energy tariffs and core elements that meet the needs of corporate buyers. To date, utility renewable energy offerings aimed at meeting the needs of large commercial and industrial (C&I) customers have had mixed success. These programs, which have evolved over the past five years, vary greatly.