NYC Energy Codes Pilot Study (IMAGE) DOE/Pacific Northwest National Laboratory Caption Side-by-side comparison of a simplified system performance model (left) versus a typical whole-building energy performance model (right). Credit Composite image by Jeff London | Pacific Northwest National Laboratory Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.