This would make the bc much more maneuverable especially in early and mid game ( the bc is basically just a sitting rock that has lasers in the early part of 90% of games ) and also would make the energy guy not spam the power console to cut power to the engines
Another interesting ideea but one that needs to be thought out properly is redirecting power from one part of the ship to another... right now you just power up what ever you need and power down what you don't ( and it takes a while )...
Example usage:
Let's say you're in a battle and you think you don't have a chance of winning and would like to run and regroup... right now the only way to do is ... is boost and hope you can juice up the engines fast enough. But if you could instantly redirect all power from weapons or shields ( or both ) to the engines and then boost... you would be a sitting duck... but a very very fast sitting duck
Same goes for shields and weapons, example: you have 100GW in shields , 100GW in weapons , 100GW in engines... if you stop ( and taking into account my first suggestion ) the 100GW from the engines would be redirected back to the capacitor because it's not in use but if you could instantly redirect power from the engines to the shields that means you could switch 100GW from engines to shields just like that... and that could be a life saver
And weapons: you're out of power in the weapons capacitor... the enemy also... what can you do? redirect all power from engines and shields to weapons and blast them to hell
Together theese 2 features could make a far more interesting game... both in early and in late game.
Let's say you put 500GW of energy in the engines from the start but keep them off