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Nissan North America
25% Reduction in Energy Intensity by 2019 from a 2008 baseline
PROGRESS TO DATE
Cumulative (vs. Baseline) 8%
Annual (2013) 10%
Portfolio Energy Performance
Better Buildings, Better Plants Challenge partners strive to decrease portfolio-wide source energy use intensity (EUI) from a baseline year. Nissan North America’s portfolio consists of three manufacturing plants. Their energy management activities are a part of the company's corporate social responsibility initiative, and focus on establishing a culture of energy awareness and efficiency. Nissan uses extensive sub-metering and monitoring equipment to benchmark and identify energy improvement opportunities.
Energy Performance by Facility
In 2013, investments and activities to reduce energy intensity produced dramatic results. Leading the improvement, the Smyrna vehicle plant realized a year over year improvement in energy intensity of 15.2%, ending the year with a 14.7% overall improvement at the halfway point of the Better Plants commitment. New paint and boiler plants were completed in March of 2013 contributing significant energy savings. At the Decherd powertrain plant, the year over year improvement in energy efficiency improvement was 12.5%, ending 2013 at 10.7%. The Decherd Machining and Assembly plant has significantly improved energy efficiency since mid 2012 with a renewed focus on reducing compressed air leaks and operational efficiency. The Casting shop has dramatically improved energy efficiency with the introduction of a gas fired stack melting furnace as well as general improvements in melt shop operational efficiency. Overall equipment efficiency (OEE) improvements also contributed to recent improvements for the Canton vehicle plant. Beginning in May of 2013 this plant realized a 3.5% improvement in energy intensity over the prior 12 months. The Canton plant has targeted an improvement in OEE for the next 12 months of 6%, in addition to capital investment in specific energy saving projects.
Method for Calculating Energy Performance
Each Nissan plant has its own energy intensity metric described as source energy per unit of output, with each plant producing a different product. These outputs include number of vehicles produced, number of engines, and power train components (castings and forgings) produced. The absolute change and percent change in source energy use, production output and energy intensity are tracked for each facility on both a monthly and annual basis. Nissan normalizes its plant-level numbers to account for external factors that impact energy use such as 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.
|SOURCE ENERGY CONSUMPTION