Several factors should be considered when deploying onsite solar, including space, site conditions, electricity rate, and state and utility policies and incentives. OnSite Solar is a leading Engineering, Procurement and Construction company (EPC) providing high quality services to the DG and Utility Scale solar marketplace. As organizations explore on-site options, solar energy is an attractive solution for most sustainable energy strategies. These systems are often described as “behind the. Onsite solar is generating and utilizing clean energy directly with the ability to either A. use the power and sell the overage to the local utility. Sep 2024 As solar energy continues to gain popularity, many individuals and businesses are considering whether to install solar panels.