Hello people
i have solar power installed in my house and lets say i have about free 500w that i can spend to a rig (with more than 500w i would spend more than i produce)
i have two options 
A) i can sell the extra power that i produce back to the electricity company thats about 1000smth euro per year or 100-120 per month and thats a stable profit
b) i can use all the remaining free kW to mine something
what would you do if you were me?
thanks in advance