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Power electronics consumers are elsewhere »To transport the energy from where it is generated to where it is needed we estimate that we need a global energy system for the generation transmission and distribution of electrical energy « Boroyevich explains »Not only do we have new sources of energy such as solar wind 21st Century Electronic Energy Network Image CPES Power Electronics Building Block PEBB for Modular Multilevel Converters MMC Image CPES Professor Dushan Boroyevich CPES USA »Over the next 30 years humanity may need to spend 6 percent of the world’s gross domestic product each year to build the global intergrid that will meet all desired energy needs - without emitting CO 2 - and thus limit global warming to below 1 5°C This task will not fail for lack of technology or resources If it fails it will be for lack of will « etc but we also have new large loads such as electric vehicles or data centers that we need to power The current power grid cannot transport this energy so new means for energy transport are needed for this as well « Boroyevich continues From a global perspective he believes that an additional electrical energy network about ten times the size of today’s grids will be needed New power networks require new technologies »In the past loads and energy sources were relatively stable but this has changed with renewables and new large loads The problem with this is that a synchronous constant frequency electromechanical grid cannot compensate for fluctuating power generation and consumption in real time « says Boroyevich But he also questions whether this type of grid is even necessary He explains »If you compare the world of 130 years ago with today technology has clearly advanced in many areas Just look at cars then and now or trains or the way farming is done The only thing that has remained the same for 130 years is a 50 60 Hz synchronous AC power system « According to Boroyevich a grid that can transmit electricity generated anywhere to any consumer even a distant one in milliseconds is a »power electronics network« that uses highvoltage direct current HVDC transmission because HVDC allows large amounts of energy to be transmitted over long distances »Apower electronics network can react within milliseconds and switch the power flow to other lines « Boroyevich says Now The power electronics are ready the raw materials are available and Boroyevich urges that the development of new electronic power network architectures and of an »e-TCP IP« protocol for controlling power transmission and connection should begin now »We need to start building a new network now even if 9 PCIM Magazine 02 2025