I've been playing on a MP server and I'm not sure if it is how the server is setup for CV power consumption but I've been testing it a bit and it seems that my current CV is using up so much power I can't get it to last more than a couple of days with like 19 T3 fuel tanks. I've attempted to turn everything off that has a activation check box in the control panel of the CV but it makes no difference in the amount of fuel packs it burns through. When I turn things off I gain only like 5 to 10...
CV power consumption
CV power consumption