Hi Viktor, I am in line with Michal, that you should consider to have some sort of "savings sharing model". However to make this work, you would need to have a "spacinig fit service" in place. Without you selling this as a service I find it unlikely that your customers would be willing to share savings with you. I do not know the competitive situation in your market, but if no-one else is offering this service for free, it could be a great service to include in your portfolio, meaning in such case you should also consider how easy it should be for your customers to get to this conclusion by themselves by using your advanced analytics. Hope you can use the above :-).