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General Motors

General Motors

Energy Performance

GOAL

25% Reduction in Energy Intensity by 2019 from a 2008 Baseline

CHALLENGE COMMITMENT

31 Plants

PROGRESS TO DATE

Cumulative (vs. Baseline) 12%
Annual (2013) 0%

GM building skyline

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 2013. GM's energy management program emphasizes innovative technology solutions, replication of best practices and non-production shutdowns. With an energy intensity improvement of 12% since its baseline year of 2008, GM is on track to meet its 25% reduction in energy intensity target by 2019. GM has shared its energy efficiency practices with its global industrial partners and is 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. Close to half of GM's facilities participating in the Challenge have improved energy performance by >10% 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).

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.



YEAR

NUMBER OF
PLANTS
SOURCE ENERGY CONSUMPTION
(MMBtu/year)
2008 26 43,612,679
2010 26 41,952,400
2011 26 41,770,256
2012 26 41,474,726
2013 31 49,979,551