Production building to storage building level difference

It seems too difficult to maintain... I mean that most buildings have a ratio of 4:1 and when one is upgraded, it rises by about 3 times its original amount. Bringing an accumulator to 8 to 12 levels higher than a power plant would put the resource needed at around 3^10, which is near 60K times more that other buildings. Maybe I'll try 1 level per next-tier touches.