The Hysopt servers are continuously up and running, performing the most complex calculations to optimise HVAC systems. In 2020 the Hysopt software reduced more than 8000 ton CO2 and 750.000 euros on yearly energy bills worldwide. A new record, and an incredible achievement of you and the entire Hysopt community! To continue this rapid growth, we recently have updated our calculation servers with state of the art technology. With this update the URL of the Hysopt webportal changed from "https://secure.hysopt.com" to "https://app.hysopt.com".