Honestly, at low speeds, it isn't worth the effort unless you want something pretty to look at in your yard.  I'm going to stack a low voltage inverter mostly for my own peace of mind that it's generating a small amount a majority of the day instead of just big bursts occasionally or when there's a storm.  

The power company doesn't store overproduced electricity, they pay the going rate at the time it is fed into the grid.  Having our own battery storage might be an attractive option, as it would allow us to go off the grid, saving our hardware from potential failure due to blackouts and allow us to continue mining, as well as sell any electricity produced during off peak times at peak rates.  Peak rate pricing doesn't hit until 12:00 and it is very common looking at the stats that we overproduce electricity in the hours just before.  If we had a battery storage solution, we could store this overproduced energy (as well as fully charge our battery cells using cheap rates) and dump it back into the grid or use it when the peak electricity rates hit.



Thank you.  It has been a lot of fun.