The grid of tomorrow will need to be flexible, accessible, reliable and economical. Our approach to it will need to include superior simulation tools; advanced communications, metering and business systems. We shall also make use of innovative power electronics to improve quality of supply, while next generation network equipment and technologies will have to provide increased and bi-directional, power transfer and reduced energy losses.
 

There are a number of key challenges that still need to be addressed in order to ensure that a smarter grid can be made a reality - for instance monitoring and control systems to help assure the stability of the system. The UK has the potential for being a major player in renewable energy generation because of the wind energy (and other) opportunities available in the North Sea. An important issue then is not just how to generate the power, but rather how we can ensure that the power will get to where it is needed. The grid of tomorrow will need to have a high degree of flexibility and to be self-healing and reconfigurable. Power electronic technologies such as HVDC (High Voltage Direct Current) transmission and Flexible Alternating Current Transmission System (FACTS) devices will help to address this challenge and allow wind farms to connect to the grid in a more flexible way.
 

It's also important to note that, with a high proportion of (intermittent) renewable generation, situations will occur where more or less power can be generated than actually needed by consumers, which raises the important question: are we equipped to store surplus (green) energy for release when required? Today's answer would be no! This challenge of energy storage will of course be heightened with the growth of micro-generation technologies, possibly including hydroelectric plants and heat pumps, and the possibility of a massive deployment of electric vehicles, which could appear as a load and as storage. This will also call for bi-directional flow of power in the grid.

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