power plant issue questions I need answered

[OrignlGaminGeneration (OGG)]

Every time I get a new ship from different regions I always get the "power plant reduced to 75% or 90%. Is there a list somewhere that gives you a heads up or do you have to buy from the base, NPC faction equipment dealer or region of space where ship was purchased? Also Do you have to take the scanner, engine and shields that came with ship even if you have that on current ship? I hope someone has these answers. Thank you for your time.