아낌e is a customer-participatory green fee service application that allows users to save electricity and enjoy benefits. This service, part of SK Telecom's future-oriented smart grid pilot project, is currently available only to participants in the Gwangju metropolitan area pilot site.

By engaging in activities such as saving electricity, learning about electricity, and trading electricity, users can earn e-points. These e-points can be exchanged for discounts on electricity bills, gift certificates, data coupons, and more. The app offers electricity management services through various IoT devices like IoT power meters and smart plugs, providing real-time electricity consumption data, estimated electricity bills, standby power blocking, and electronic product control through schedule settings.