A key objective of Demand Side Management in Shetland is to reduce peak electricity demand thus expanding the capacity of the current network to accommodate more energy sources to be connected to the grid; and provide a more comfortable and economic solution for customers.

Shetland is the largest non-grid connected network in the UK, and with no gas network, Shetland has a high penetration of all electric households – 53%.  These traditional electric storage and hot water heating systems rank poorly with customers – frustrated at the lack of control and level of comfort. 

Utilising this significant source of electrical load to influence the overall demand on the system will help to avoid requirements for larger new generation plants (to replace the ageing Lerwick Power Station) and larger network reinforcements, thereby minimising the capital costs for such developments.

The existing district heating scheme that is currently supplied by waste heat from the Islands’ waste to energy plant also relies on significant quantities of oil to meet the requirements of the scheme. In addition to the individual domestic heating loads, NINES Demand Side Management is employing the power supplied to a new electric 4MW boiler with the integration of a new 6.15MW wind farm  -reducing oil dependency and reducing emissions.

Consumer appreciation of the new solutions is also vital, and an objective of this trial is to understand the product and commercial arrangements that need to be in place for the widespread adoption of the new technologies.