That should work.
I have a 24 volt dc buss in my house that is derived from 4 solar panels on the roof. I went with 24 volt because of the loss over the cable, because it's dc and needs a return path your 100m long cable is 200m long to the circuit. Using heavy gauge wire has lower loss per foot or even using 12-24volts AC would work better over that distance
Remember Remember The 8th of November, When No One Stood, but Kneel, In Surrender
In a popular government when the laws have ceased to be executed, as this can come only from the corruption of the republic, the state is already lost. Montesquieu