Overcharged Power Plant = additional heat when jumping?

[Cmdr Snuffler]

Well, I was getting over capacity when deploying. I already had set the AFMU to a lower priority, as long as the vehicle hangar, the cargo hatch and the fuel scoop. But even with those to a lower priority, I was still over what the power plant could provide. What's the link to edsy? Does it have the Type-8 yet? Coriolis doesn't...

An explorer doesn't need a class 7 shield, even if playing in open. A class <=5 prismic, or regular, shield with enhanced engineering + low draw would be much better. Then an E rated shield booster with thermal resist.
For an explorer I'd not only set the AFMU to low priority, but I would also disable it completely in the modules panel. I disable both the AFMU and the repair limpet controller until I need them. Disabled modules use 0 power.
Do you have an EDSY link to your ship build?
Why do you have weapons on an explorer? You really only need a small/medium pulse/beam on a guardian site explorer ship.