Apologies @jpuigsegur, I thought I had replied to you and only just found the unfinished and unposted draft, I must of been distracted and forgot to come back to it.
@BMJ it is possible with both the local emoncms schedule module and the cron method to have multiple tariff periods.
I will finish off what I was writing and hopefully post further on this tomorrow if I can (over the weekend otherwise), as it’s been a long day today.