I do not think that the energy will flow in bidirectional manner. It is only the data collected by smart devices that can be made to flow in bidirection. This is called full duplex communications.
May be the most advancements will be the more smart control of the power sources and the power consumed by the loads to increase the utilization efficiency.
Also because of the wind and PV generators with the distributed nature brings with it the transformation from strictly centralized electricity generator to hybrid distributed system.
In the largest sense, a smart grid combines the electrical infrastructure with digital technologies that analyze and transmit the information received.
Real-time flow control: sensors installed throughout the grid instantly indicate power flows and consumption levels.
-Integrating renewable energies into the grid: smart grids are based on an information system that makes it possible to forecast production and consumption levels in the short and long term.
In addition to what Nasreddine Attou has noted, DG or distributed generation would become mainstream. In fact, it has already started impacting utility companies (https://www.ge.com/power/transform/article.transform.articles.2017.mar.how-distributed-power-generati#).
Distributed generation (DG) refers to the generation of electricity in a decentralized manner, that is, geographically distributed over the area that is serviced and close to the consumer of energy (which often is the owner of the facility). It used to be the case earlier, the ocmpany servicing dozens of home until the mega-utility companies took over.
The traditional power grid is basically the interconnection of various power systems elements such as synchronous machines, power transformers, transmission lines, transmission substations, distribution lines, distribution substations, and different types of loads. They are located far from the power consumption area and electric power is transmitted through long transmission lines.
The smart grid is a modern form of the traditional power grid which provides more secure and dependable electrical service. It is, in fact, a two-way communication between the utility and the electricity consumer.
The smart grid is capable to monitor activities of the grid-connected system, consumer preferences of using electricity, and provides real-time information of all the events. The key components of smart grid include smart appliances, smart substations, smart meters, and advanced synchrophasor technologies.
I do not think that the energy will flow in bidirectional manner. It is only the data collected by smart devices that can be made to flow in bidirection. This is called full duplex communications.
May be the most advancements will be the more smart control of the power sources and the power consumed by the loads to increase the utilization efficiency.
Also because of the wind and PV generators with the distributed nature brings with it the transformation from strictly centralized electricity generator to hybrid distributed system.
One of the most fundamentals' aspects that will reshape power grids of the future is the employment of machine learning techniques and approaches to smart and adaptively response more effectively and dynamically to the dynamically-varying needs from power distribution grids. This is an essential design concept that would allow real-time implantation and operation of the power grid allowing it to accommodate bigger industry/economic demands and more household users more effectively and efficiently.