30.20 Jul 31, 2026
PCC Sep 25, 2026
IEC
TC 23/SC 23K
International Standard
PROJECT
IEC 63402-2-1 ED1
30.20
CD study/ballot initiated
Jul 31, 2026
Energy efficiency - Customer energy management systems - Part 2-1: Data model and messaging - Interface between the distribution system operator/ energy management gateway and customer energy manager/ building energy manager (Proposed horizontal publication)
10.99 New project approved
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