Increased power draw after resume from suspend

Hi there, I have started noticing that my battery lasts a lot less when I resumed it from suspend. I have started monitoring the power draw under different scenarios using powertop. I managed to reduce the power draw to around 8W (by disabling the GPU completely and using tlp, but if I suspend and come back the power draw immediately jumps to 17W, with peaks of up to 30W for no apparent reason and nothing running on background. This obviously reduces my battery life by 50-70% compared to not suspending at all.
Is there any way to begin diagnosing what is causing this?
could it be a kernel issue?

Once place to start investigating is here:

While your description appears detailed, is quite generic. We would need more information about your setup: