As an exhibitor you can park for free during the fair at P1, P3 and P4 by MCH Messecenter Herning and therefore you do not need a special parking permission.
Electric cars can be parked and recharged at P1 and P3 in the marked area. There are 2 passages to entrance Vest and entrance Syd 1 from P3.
Please see the overview below for further information in regards to offloading of goods. In english at page 2.