Version 3.0.0 is now released. For the sake of simplicity, I opened a new thread which can be found at Spot Price Optimizer: Advanced algorhitms to optimize heating, charging of electric vehicles or water boilers
As written on the opening post of the new thread, this original thread has gone through so many cycles of evolution from my early, very first experiments with openHAB two years ago that this thread is quite hard to follow.
Further discussion to the new thread, please. @mstormi I believe you can lock this thread?