I moved my windowsill Nepenthes outside into full sun a while back, and i found the first obvious sign that it was a good move today while moving the (crowded plants) around a bit. *In spite of the dry days of scorching sun, all three plants are looking better. *The N. sanguinea, in particular, seems happy: two new basal shoots (the first i had on a nep... in the last two months, fully half of my nepenthes have put them out, though!), and... a monster pitcher!
Well, okay, not so huge (6-1/2"), but it seems big to me.
Note that these are all highland/intermediate plants. *I really don't think lowland neps would take these conditions very well.