 The development of electricity pricing has been essential to the evolution of today's power systems. In particular, the integration of renewable energy sources and controllable loads requires new pricing models to ensure efficient operation of the power grid. Furthermore, the increasing use of P2P and M2M energy trading and sharing, as well as demand-side ancillary services, DCS, necessitates the need for more sophisticated pricing schemes. This review article surveys the developments, methods, and frameworks related to electricity pricing and energy trading, focusing on the impact of pricing schemes on resas and batteries, controllable load applications, and DCS for grid frequency support. It also discusses the current frameworks and limitations of electricity pricing in the current energy market, as well as future research directions. This article was authored by Jechi Liu, Hongjie Hu, Samsung SU, and others. We are article.tv. Links in the description below.