Smart Grid image

Smart Grid

What is a “Smart Grid”?

A ‘Smart Grid’ is part of an electricity power system which can intelligently integrate the actions of all users connected to it – generators, consumers and those that do both – in order to efficiently deliver sustainable, economic and secure electricity supplies.

An overall aim of a smart grid is to help shift the nature of our electricity supply from a carbon intensive, supply driven and non-responsive network to an efficient, low carbon and highly responsive network. The role of “smart grids” in achieving this is recognised in the Governments Low Carbon Transition Plan.

Shetland’s Smart Grid

The main components of Shetland’s Smart Grid under NINES are:

  • Sophisticated modelling  – to address fundamental issues about Shetland’s power system relating to planning, operation, residents’ interaction with energy systems, and the impact of implementing innovative energy technology. This modelling will help create new commercial arrangements for relevant customers to provide energy storage to help balance the network. More
  • Demand Side Management – the installation of new “smart” water and space heating in 234 homes providing the ability for the grid to cope at ‘peak’ times when more energy is being generated than used. The smart heating systems will provide flexible and cost-effective heating for individual households.  More
  • 4MW thermal store connected to the existing district heating system. The thermal store will allow expansion of the district heating system to supply up to 300 more homes and 30 more businesses.  More
  • A large-scale battery energy storage system – to be installed at Lerwick Power Station to provide energy storage and help balance the energy supply and demand. More
  • An Active Network Management system – to provide the information flows and control needed on the network to make these new technologies and arrangements work. More
  • Facilitating increased connection of renewable generation – the development of new arrangements to allow more generation – approximately 10MW – to connect to the network, utilising the grid capacity freed up by the measures above. The generators would connect under a new ‘flexible’ connection agreement, which would allow their output to be reduced at times when the system cannot accommodate their full output. More