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Winter margin: tight, but with new tools 'no worse than recent years'

"The risk of disruption to energy supplies this winter is no higher than it has been in recent years," Rachel Fletcher, senior partner for markets at Ofgem, told attendees at the regulator's winter outlook seminar at the end of October.
But achieving that level of comfort  had required National Grid to implement two emergency measures: demand side balancing reserve (DSBR) and supplemental balancing reserve (SBR).

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