"We have had over 300 engineers working in the Wigtownshire and Barrhill areas today.
"We have also contacted customers throughout the day and offered hotel accommodation for anyone who was due to remain off supply into this evening.
“We would again like to thank customers for the patience they have shown, and apologise for the inconvenience caused. Our engineers have encountered some of the most difficult conditions they have ever faced attempting to restore supplies.
"We would also like to thank staff at Dumfries and Galloway Council and Transport Scotland for the support they have provided.”
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Pictures from the commemoration marking the centenary of the Quintinshill rail disaster, which killed more than 200 people, is underway.
The 100th anniversary of Britain's worst rail disaster will be commemorated at a special service today.