Dear sir / madam, On Sunday 31-mrt-2019 the winter-/summertime transition will take place in the Netherlands. This will happen from 02h00 till 03h00. To avoid operational problems, we would like your attention to the following procedures: T-programs Please send in your T-programs for 31-mrt-2019 and 01-apr-2019 beginning from Monday 25-mrt-2019. For UTC details see the text mentioned down below. E-programs Please send in E-programs without import and export contracts (Year and Month contracts) for 31-mrt-2019 and 01-apr-2019 beginning from Monday 25-mrt-2019. If you have any import and/or export contracts, we would like you to send them in from Friday 29-mrt-2019, after 02h00 pm. UTC Details We would like to remind you of the following facts: 30-mrt-2019 has 96 PTE's and UTC 1, 31-mrt-2019 has 92 PTE's and UTC 2, 01-apr-2019 has 96 PTE's and UTC 2  (up to and including Sunday 27-okt-2019) Please read the reply-messages from TenneT very carefully. If you have any problems, call TenneT on: 003126 373 1730

Regards,

TenneT TSO B.V.