The creation of a smart grid in Shetland requires innovative thinking as to how energy will be produced, distributed and used, and how new and developing technologies can be used to deliver change. The innovations trialled in the project include:
- A large battery at Lerwick Power Station, which will store or discharge electrical energy will allow greater control of generation in response to variations in demand, and facilitate the best use of renewable generation. For instance, when a lot of energy is being generated by wind turbines at a time when demand for electricity is low, the battery can be charged to store the energy for later use. This stored energy can then be used to provide electricity in a more efficient manner.
- Advanced domestic space and water heaters, will also be used to store energy in the form of heat when a lot of renewable energy is being generated.
- 4MW electrical boiler with a 130MWh hot water store for non domestic demand side management
- An Active Network Management system allowing the management of renewable energy and energy storage devices thus making Shetland’s energy system more secure.
- Connection of renewable generation through ‘managed connections’, contributing to an improvement of air quality and reduction of CO2 emissions.
- Demand Side Management, which encourages customers to shift their energy demand, will improve Shetland’s load profile reducing peak energy demand providing greater capacity on the network and reducing the need for network reinforcements.