General Motors: Energy performance

Energy Performance
Cumulative (vs. Energy Baseline)26%
Annual (2017)3%
Water Performance
Cumulative (vs. Water Baseline)28%
Annual (2016)10%
PORTFOLIO ENERGY PERFORMANCE

Better Buildings, Better Plants Challenge partners strive to decrease portfolio-wide source energy use intensity (EUI), and to increase the percent improvement compared to a set baseline. GM's portfolio consists of 31 plants as of 2017. GM's energy management program emphasizes innovative technology solutions, replication of best practices and non-production shutdowns. With an energy intensity improvement of 26% since its baseline year of 2008, GM has met its 25% reduction in energy intensity target in 2017. GM has shared its energy efficiency practices with its global industrial partners and planning to do the same through DOE's Better Plants Challenge Program.

ENERGY PERFORMANCE BY FACILITY

Looking at the percent improvement in energy performance across all facilities can provide insight into how an organization is saving energy. Over 74% of GM's facilities participating in the Challenge have improved energy performance by >15% since the baseline year of 2008. A number of actions taken by GM at the facility level since 2008 have contributed to its overall energy efficiency improvement, including: direct centrally-managed energy reduction projects, energy performance contracting, direct product program changes (which are product driven but reduce energy), and locally-managed reduction projects/behavior changes (low cost with quick payback). Three of GM's 31 facilities have experienced no improvement or an increase in energy intensity, indicating the company still has room to improve on its already significant energy efficiency accomplishments.

METHOD FOR CALCULATING ENERGY PERFORMANCE

GM produces different products and as a result uses different metrics to calculate plant-level energy intensity. Depending on the plant, GM calculates energy intensity in terms of source energy consumed (in MMBtus) divided by number of vehicles produced, number of engines, or power train components produced. The percent change in energy intensity is tracked for each facility on both a monthly and annual basis. GM normalizes its plant-level numbers to account for changes in production volume and heating and cooling degree days. These metrics are rolled up to the corporate level, with a corporate-wide percent improvement in energy intensity calculated by taking a weighted average of the percent change in energy intensity at the individual facilities.

General Motors
PORTFOLIO WATER PERFORMANCE

Better Plants Water Savings Pilot partners strive to decrease portfolio-wide water use intensity (WUI), and to increase the percent improvement compared to a set baseline. GM's portfolio consists of 31 plants as of 2017. GM's water management program emphasizes innovative technology solutions, replication of best practices and non-production shutdowns. With a water intensity improvement of 28.3% since its baseline year of 2010, GM has met its 20% reduction in water use intensity target in 2016. GM is planning to sign another voluntary pledge to reduce water intensity further and in the process of selecting new baseline year and goal.