Power supply
An electrical substation on the °ÄÃÅÁùºÏ²Ê¸ßÊÖ site is the vital link between the 400kV power line and °ÄÃÅÁùºÏ²Ê¸ßÊÖ's electricity needs.
Electricity requirementsÌýfor the °ÄÃÅÁùºÏ²Ê¸ßÊÖ plant and facilities will range from 110 MW to up to 620 MW for peak periods of 30 seconds during plasma operation. Power will be provided through the 400 kV circuit that already supplies the nearby CEA Cadarache site—a one-kilometre extension now links the °ÄÃÅÁùºÏ²Ê¸ßÊÖ plant into the network.
°ÄÃÅÁùºÏ²Ê¸ßÊÖ will have a steady state distribution system to supply the electricity needed to operate the entire plant, as well as offices and the operational facilities. Together, the cooling waterÌýand cryogenicÌýsystems will absorb about 80% of this supply.
A second pulsed power system will be used during plasma operation to provide the superconducting magnetÌýcoils and the heatingÌýand current drive systems with the large amount of power that they need. Electricity from the 400 kV circuit will be transformed to an intermediate level (69 kV) via 3 step-down transformers. (More information onÌýthis page.)
Emergency backup power for the °ÄÃÅÁùºÏ²Ê¸ßÊÖ plant and facilities will be covered by two diesel generators and associated equipment that can provide an alternate source of steady-state power in the case of an emergency.
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