Hi, I am looking for someone to write an article on energy performance review: building performance assessment systems of europe Paper must be at least 1250 words. Please, no plagiarized work! Monitoring of energy systems started in the 1920s. Back then, engineers made use of the airflow modeling algorithm in their study of HVAC systems (Rmi.org, 2014). The practice later changed to tracking heat flows in the 1950s and eventually to the prediction of cooling loads in the 1970s. Energy conservation became a priority in the 1970s as a result of the oil shocks. Measuring energy performance in buildings gained momentum through the aid of advanced computer technologies. The development of energy evaluation methods continued according to the cost- containment and energy security imperatives that the oil crisis had exposed.