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On the wave of the development of new ICT technologies and renewable energy, the power system will certainly experience great changes to its outdated architecture over the next several decades. One of the key drivers of change in the power system is distributed energy resources. They are completely changing the paradigm of the power system as a system with a centralized hierarchy and one-way power flows from generation to customer and from high voltage to low voltage. Because the goals of net zero greenhouse gas emissions are gathering pace and are being accepted by countries around the world, slowdown in the integration of distributed energy resources cannot be expected. Another reason why we can expect faster integration is the development of technology for energy production which is becoming more available to power consumers. Because of the problems that are currently occurring in the distribution system, it is clear that the system must be modernized in line with the development of these technologies. The technology that will likely have the greatest impact on the modernization of the power system is blockchain technology combined with the smart grid paradigm. Blockchain has the ability to completely change the way the power system is managed and optimized for performance.

This paper is a summary of the CIGRE Technical Brochure 824 The Role of Blockchain Technologies in Power Markets [17]. The work of the contributors to the Technical Brochure is recognised. It is proposed to follow up this work in a new working group with a more in-depth look at the potential applications for blockchain in the area of energy trading.

Blockchain technology offers some significant potential benefits for improving electricity markets. This TB reviews the potential applications for blockchain as energy markets transform. The WG also assessed 37 projects which have already implemented blockchain into energy markets to understand the current level of actual implementation and the benefits in the real world.