The org I mentioned in my previous post was not a reseller but an energy producer; they were the largest producers of energy both in our country and the neighbo

The org I mentioned in my previous post was not a reseller but an energy producer; they were the largest producers of energy both in our country and the neighboring countries. The calculations for plant scheduling took a gazillion of parameters into account (CO2 emission rights, pricings of different kinds of fuel, weather predictions, ...) These markets not only trade energy, but also fuel, logistics, CO2 emissions, ... (using direct quantities, options, leveraged products, things like insurance, ... If you could imagine it, there was probably someone trading it.) If you are into this stuff: I built the prototype that validated their portfolio position with the other suppliers; it was a protocol called EPM (Electronic position matching), developed by the EFET (European Federation of Energy Traders). I am not sure how it evolved, as this was the first iteration of the protocol...