Limit to the total # of special energy in deck?

[slap_shot_12]

I can't seem to find out if there is a limit to the number of special energy cards you can have in a deck. I'm putting together a deck that I think would benefit from several types of special energy, and from severl cards of each (so, 5 rainbow energy and 8 scramble energy, for example) (those are just examples, not really what I'm thinking of using....)

ANyway, I've done a fair bit of searching to find an answer for this because for some reason I thought there was a limit, so if anyone can answer it'd be much apprecaited.

 

[PokePop]

Per the Rule Book, you can only have 4 copies of a card with the same name.
That includes Special Energy cards since each one has a name.
So, that would be 4 Double Rainbow, 4 Scramble, etc.