Recent publication and special issues I'm looking to know how to get notifications when there is a recent publication (in IEEE Transaction Journal and MDPI Energies). Moreover, If there are any special issues (Smart grid or something related to it) I want to be aware of these. Can someone guide how to get notified with these two journals? 

P.s: (Although I have accounts in these) 

Thank you in advance.
To the best of my knowledge there is no way to get MDPI to notify you of upcoming special issues without knowing about everything else they publish.

If you're looking to submit to those special issues, I recommend looking for subject-specific communities (e.g. mailing lists or similar) that people might advertise calls for papers to.

If you're simply looking to read them, I suggest setting up some good Google Scholar alerts around the subjects; if you get these right then as well as giving you interesting articles from all over the place, they will tend to show up multiple articles from the same special issues.