Energy Saving in Global Production
Most of the CO2 emissions in the manufacturing process come from the consumption of energy generated with fossil fuels. We are engaging in a variety of energy-saving activities in manufacturing our vehicles.
In production technology, we are introducing highly efficient equipment, improving manufacturing techniques and adopting energy-saving lighting. Our offices use finely controlled lighting and air conditioning for low-energy-use, low-loss operations. We are promoting CO2 emission reduction activities and introducing our cutting-edge energy conservation technology from Japan in Nissan plants worldwide. Meanwhile, our plants in all countries learn and share best practices with each other. In addition, we promote various activities aimed at reducing CO2 emissions, such as by forming a team of technicians called Nissan Energy Saving Collaboration (N-ESCO); this team surveys the status of energy loss at our plants in Japan and overseas and propose new energy-saving countermeasures. With these activities, we set a target of reducing CO2 emissions by 27% below the fiscal 2005 level by fiscal 2016, as measured by the index of "CO2 emissions per global vehicle" (total emissions generated from global Nissan vehicle manufacturing sites divided by the total Nissan vehicle production volume). In fiscal 2012 our CO2 emissions per global vehicle were approximately 0.62 tons, a reduction of 15.2% from the fiscal 2005 level.
N-ESCO: Nissan's Energy Service Collaboration activities
In fiscal 2001, Nissan organized a special team called N-ESCO, "the Nissan Energy Saving COllaboration", to promote measures for efficient energy conservation at five plants in Japan: Yokohama, Oppama, Tochigi, Kyushu and Iwaki. In general, energy service companies (ESCOs) provide comprehensive services to clients seeking to conserve energy at their offices and plants, taking a portion of the money thus saved in return for their services. N-ESCO is our own internal team to carry out these activities, diagnosing energy use at our business locations and recommending measures to take. N-ESCO carries out plant surveys, using them to formulate effective energy-saving plans and helping implement them at all the plants.
N-ESCO also provides input to the departments in charge of designing our manufacturing facilities on ways to improve the facilities so they consume less energy, thereby boosting the energy efficiency of newly introduced equipment at our plants. The team also carries out ongoing work to make our operations more energy-efficient, such as by shutting down equipment completely during plant downtime.
Introducing cogeneration systems
Cogeneration, which involves making effective use of the heat produced when generating electricity, is a valuable means of raising overall energy efficiency and promoting energy conservation. Nissan is actively installing cogeneration systems in its facilities, and their rate of use is on the rise each year. To date we have introduced cogeneration systems at our Oppama, Yokohama, Tochigi and Kyushu plants.
Introducing renewable energy
We are promoting the use of renewable energy sources appropriate to the location of each of our global plant sites. Since 2005, we have installed 10 power-generating wind turbines on the grounds of Nissan Motor Manufacturing (UK) Ltd., which together provide about 5% of the electricity used at the entire site. In Japan, Nissan is co-sponsoring the city of Yokohama's Y-Green Partner program for wind power generation. Nissan Motor Iberica, S.A. in Spain has set up solar energy panels. Nissan Mexicana, S.A. de C.V. in Mexico has installed facilities to produce hot water by solar power at its Cuernavaca Plant, and also started using energy generated from biogas in 2012, and wind power in 2013 in its Aguascalientes assembly plant, raising its renewable energy use ratio to 50%. In other words, starting in 2013 one of every two Nissan vehicles produced in Aguascalientes is assembled using sustainable resources.
Power-generating wind turbines introduced on the grounds of Nissan Motor Manufacturing (UK) Ltd. in 2005
Nissan is a partner in the "Yokohama Large-Scale Wind Power Project" in the city of Yokohama, Japan, and purchases energy generated there.
Solar energy panels set up at the Nissan Motor Ibérica, S.A. (Spain) production plant. These panels were put into operation in May 2007, marking the first attempt by an automobile company in Europe to use solar energy.
Top-Level Energy Management in North America
In May 2012, Nissan's Smyrna Vehicle Assembly Plant in Tennessee obtained certification under ISO 50001, the international standard for energy usage, and Superior Energy Performance (SEP) certification from ANSI, the American National Standards Institute. As the first automobile manufacturing facility to receive either of these certifications, the Smyrna Plant has established its position as a U.S. leader in energy management.
The U.S. Department of Energy began field tests in 2008 as part of the SEP program to gauge energy management standards in preparation for the introduction of ISO 50001. Nissan was one of seven companies taking part in these field tests, which went on for three years. The Smyrna Plant succeeded in improving its energy efficiency by 7% by implementing three steps: (1) crafting approaches to reduce energy consumption, (2) implementing strategies to conserve energy and (3) sustaining efficient practices.
The U.S. Environmental Protection Agency recognized Nissan North America (NNA) as an Energy Star Partner of the Year for three straight years beginning in 2010 as part of the international Energy Star program. In 2012, NNA also received the Energy Star Partner of the Year-Sustained Excellence award. Since first taking part in the program in 2006, NNA has reduced its energy consumption by a total equivalent to some 800 billion BTUs.