In 2011, energy used in our operations totaled 1.55 billion gigajoules. ExxonMobil pursues a variety of projects to improve energy efficiency. Since 2000, we have used our Global Energy Management System (GEMS) in the Downstream and Chemical business lines to methodically and rigorously identify and act on energy savings opportunities. The GEMS equivalent in the Upstream business is the Production Operations Energy Management System (POEMS). Implementation of GEMS and POEMS is helping us meet our 10 percent energy efficiency improvement target and reduce upstream flaring.
Through 2011, we improved energy efficiency by approximately 9 percent in refining and more than 12 percent in chemical manufacturing since 2002. Combined chemical and refining operations have improved energy efficiency two to three times faster than the industry average.
ExxonMobil recently announced plans to build a new campus on a 155-hectare site just north of Houston, Texas. We carefully considered energy conservation during the design phase of the campus and aim to achieve Leadership in Energy and Environmental Design (LEED) Gold building certification. By optimizing daylight availability and incorporating other energy efficiency measures, we expect to reduce our energy demand in the office buildings by more than 40 percent compared to traditional office buildings, and 30 percent compared to the Bell Street ExxonMobil building in Houston.
ExxonMobil’s Global Real Estate and Facilities group has been working on an initiative to reduce the environmental footprint of our offices. This includes analysis of energy, water, and waste across our facilities. We are developing toolkits to help ExxonMobil facilities understand and implement energy management programs. We are also encouraging our facilities to record baseline energy performance data and metrics to drive performance and measure success. During 2009–2010, a contractor conducted energy assessments at 21 of our international facilities. They performed visual inspections and reviewed operating procedures and utility bills for electricity, natural gas, and water. Sites received a list of potential improvement opportunities and determined which projects to pursue.