Green Engage, an online tool used since late 2009 by InterContinental Hotel Group properties to measure, manage and report environmental impact, has received a LEED volume precertification. According to IHG, volume precertification is a step that provides a streamlined path to LEED certification for a large group of hotels, based on a preapproved prototype and process. Individual IHG hotels now can expedite their own LEED certifications by using the tool. Green Engage is designed to make hotels 15 to 20 percent more energy efficient, resulting in annual savings of more than $90,000 a year per property. According to IHG, currently there are more than 1,000 hotels registered for the program. The company plans to grow that base and to release Green Engage Version 2.0 this year.