vitality consumption – {Hardware} to make use of half time with 300KW free solar energy

We’ve a big photo voltaic array and when our tools is just not working we’ve got to curtail the ability to stop tripping the following city.
So for about 45-50 hrs per week we’ve got about 300KW of obtainable and free energy.
New {hardware} is just too costly even with free energy as a result of restricted hours out there every week. Working 24/7 in any case is not less expensive as a result of purchased energy prices extra on a photo voltaic plan.
So should you had this a lot free energy what low cost inefficient {hardware} would you employ?
I am questioning if I can discover a pallet of used servers and setup a farm that simply runs when we’ve got additional energy.