One of the main challenges of increasing energy efficiency investments is the lack of statistical data on the actual energy and costs savings which are achieved through them. Data is still hard to access because it is decentralized and in different formats....



























![Gerard Laguna [Challenges in energy efficiency]: «To get good data to model the buildings and the implementation of the model predictive control into existing facilities»](http://cimne.com/wp-content/uploads/2020/10/gerard201021130349.png)









































