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9. Property, plant and equipment (Details Narrative) - ARS ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Property Plant And Equipment Details Narrative Abstract
Direct costs	$ 1,000,000	$ 869,700

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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Name:	EDN_PropertyPlantAndEquipmentDetailsNarrativeAbstract
Namespace Prefix:	EDN_
Data Type:	xbrli:stringItemType
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