Ouch, that's 1080 kWh per month. Average monthly power usage in the United States is around 900 kWh per month, so you're looking at doubling your electric bill, if you can't use solar.
Steve, the reason why I'm interested in the solar is for exactly what you brought up. Elec Co Ops are expensive when it comes to electric bills. I also understand that A good hatchery, like Overton's should make enough to cover electrical expenses where a private pond owner may not be able to justify the expense. But on the other hand if you want a 3 acre pond that will support more than a couple of double digit lmb the cost to do so is not cheap. And a fish kill will cost you some money also. Considering what it cost to grow out some DD lmb. You are looking at the price of the lmb genetics, forage fish, grass carp, herbicides, daily supplemental feeding the forage fish, shock surveys, aeration and time and labor (effort) just to mention a few cost and if you want to do this in a short period of time, there will be supplemental forage fish stocking, or the cost for a forage fish pond with more supplemental feeding. Hobbies are not cheap!
