How are you going to optimise the mining costs? The miners are all over the world, I guess it will be difficult.
We have developed a monitoring and control system that controls both the mining equipment and auxiliary systems (ventilation, room temperature, humidity). That allows us to have constant control over the systems with minimum efforts.
For now the rest of the systems stay the same. The only thing that changes is electricity price. Constant reliable source of renewable energy allows us to save money on electricity bills. But of course we are always looking for ways to optimize mining costs even more.