Have 4 10 hp fans. Might someday add 2 15 hp fans if I build larger bins.  3 phase is $40,000 just to get close & probley another $10,000 to  get connected.
 Have single phase close.  Rea wants $6000 to connect , but will  need a rotophase to run fans. Seldom will need all 4 fans running at once. Sometimes one at  a time.  Do I want 1 50KW rotophase, or 2 25Kw rotophases? 

 Any "reasonable" places to buy Rotophase's?    Fans  may run a month a yr.  No demand charge on grain bins "here ...Now".