NINES Demand Side Management trials will allow the devices located in customers’ properties to store energy when, for instance, there is a lot of wind energy available but not enough demand to use it. This storage will be via the installation of “smart” heaters and storage capabilities, as well as 4MW electric boiler associated with an extended district heating scheme. The domestic space heaters and immersion water cylinders while working similarly to the existing devices will incorporate additional insulation to minimise heat loss and will be fitted with programmable timers to allow users much better control of temperature and operating times, and allowing them to charge at times that best suit the network.

Using such advanced systems will improve home comfort levels, as customers will be able to control their heating to a greater degree than they can now, while at the same time helping to make the supply of electricity more efficient and more reliable.

The new 4MW boiler will be able to store 130MWh of hot water, thus providing the capacity to extend the existing popular district heating scheme and substantially reduce the current schemes’ use of oil. The key benefit of installing such a scheme is thermal store’s ability to respond instantaneously to situations arising on the network. For example, if there is insufficient demand on the island system relative to generation, the thermal store can increase demand and ‘soak up’ the surplus generation, or vice versa, thereby helping to maintain a balanced system.