During 2010, a total of ten nuclear power stations were chosen to have their legacy Emergency Plume Gamma Monitoring Systems (EPGMS) replaced. Servelec Controls has over twenty years’ experience in the provision of EPGMS to the nuclear power generation industry. The primary function of EPGMS systems is to provide essential information to an emergency team on site to assist in the assessment of the local population's radiation dose in the unlikely event of an accidental release of radioactivity.

NGC has a statutory duty under the Electricity Act 1989 to develop and maintain an efficient, co-ordinated and economical Transmission System for the supply of electricity. One of NGC’s statutory obligations is the requirement to maintain system frequency within the range 49.5Hz - 50.5Hz. This is achieved through the management of changing generation and/or demand. These services are automatic and can be required at any time to contain frequency deviations and recover it back to normal. To date these services have been provided by Generators, obliged to have a frequency control capability by virtue of their Grid Code connection conditions, and large industrial electricity consumers capable of interrupting firm loads for a required time. Given the limited number of production processes able to offer a firm interruptible load, NGC has been developing a frequency response service through the aggregation of fluctuating electrical loads. By combining a large number of cyclic demands, a relatively firm level of response can be derived and delivered when required.

Following the Fukushima incident in Japan, EDF-Energy NGL undertook a rigorous assessment into the resilience of its fleet of UK nuclear power stations against the highly unlikely occurrence of an extreme weather or other natural event. Through this process, they identified a requirement for the provision of mobile emergency response systems which will be deployed on the occurrence of such an event.