Rush gameplay change

It seems to me as though Rush has become the primary steam-roll faction. This is because of a few things:

Turtle players are unwilling to build artillery pieces to bombard civilian structures.
Rush players tend not to attack until they have an overwhelming force, while using their force build up to harrass any attack forces that leave an enemy base.

So, I have a change proposal:
Each Rush unit will take up power. Each Rush command building will give around 15-30 power. If the Rush player runs out of power, then his production stops.

This means that Rush players will either have to build a lot of command buildings (wasteful), or fairly constantly harrass opposing players (which is what I want). Hopefully, players will choose the latter, and come up with relatively creative ways to attack their opponents so that each strike does at least some damage.