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Environment

Systems Solutions that Help Reduce CO2 Emissions

(Updated on August 31, 2011)

In addition to taking steps to lower greenhouse gas emissions from its operations, Sony is developing energy-saving products and IT technologies that help reduce CO2 emissions from Sony products during use by customers.
  • SRW-9000 high-definition camcorder (HDCAM-SR series)
    SRW-9000 high-definition camcorder (HDCAM-SR series)

Digital Cinema Systems
The movie industry is shifting rapidly to digital technology. Sony developed the world's first digital cinema camera, the HDW-900, in 2000, an achievement that brought dramatic changes to the front lines of filmmaking. The use of high-definition video (HDV) rather than film greatly improves efficiency on several fronts. For example, one reel of film holds only about 10 minutes' worth of action, whereas one reel of digital video allows 50 minutes of consecutive filming. Moreover, shots can be reviewed on the spot, greatly simplifying the post-production editing process, thereby making production more efficient and reducing associated costs.

Released in 2009, the SRW-9000 -- the first digital high-definition camcorder in the HDCAM-SR series -- delivers superb image quality and performance and outstanding maneuverability. The unit is approximately 60% smaller and lighter than would be the case with a comparable separate camera and camcorder and uses only about half the energy.*1

Moreover, because digital data is delivered to digital cinema-compatible movie theaters on a hard disk drive (HDD), there is no need to develop film, substantially reducing the need for water and chemicals used during the developing process. Further, whereas a single two-hour movie on film requires six reels of positive film, the same movie made with digital cinema needs only one HDD, thus increasing the efficiency of shipping and contributing to the reduction of associated CO2 emissions.
Total emissions of CO2 associated with a two-hour movie made using digital cinema -- from production of complete digital cinema package through to distribution to and showing at 300 digital cinema-compatible movie theaters across Japan and final disposal -- are estimated to be approximately 160 tons lower than those associated with a movie made using film.*2

*1
Compared with the Sony F23 and SRW-1 combined
*2
Based on Sony data; premise for calculation is as follows:


Movie made using film
CO2 emissions from the following processes associated with a two-hour movie made using film, assuming six rolls of film per movie theater:

  • CO2 emissions during manufacture and developing of film
  • CO2 emissions during transport of film
    Calculated in ton-kilometers assuming round-trip between Tokyo and each movie theater in a two-ton truck: Weight x distance traveled x fuel used per ton-kilometer x coefficient of CO2 emissions per unit of fuel used
  • CO2 emissions from projectors during showing of movie
    Power consumption by projectors during showing of two-hour film x coefficient of CO2 emissions per unit of power consumed
  • CO2 emissions from disposal of film Calculated assuming incineration of all positive film used

Movie made using digital cinema
CO2 emissions from the following processes associated with a two-hour movie made using film, assuming one HDD per movie theater:

  • CO2 emissions during manufacture of HDDs
    Distributed proportionally assuming one HDD can be used for a total of 120 movies
  • CO2 emissions during transport of HDDs
    Calculated in ton-kilometers assuming round-trip between Tokyo and each movie theater in a two-ton truck: Weight x distance traveled x fuel used per ton-kilometer x coefficient of CO2 emissions per unit of fuel used
  • CO2 emissions from projectors during showing of movie
    Power consumption by projectors during showing of two-hour film x coefficient of CO2 emissions per unit of power consumed
  • CO2 emissions from disposal of HDDs
    Calculated assuming landfilling of HDDs
  • CO2 emissions over the life cycle of digital cinema projectors (except during showing of movie)




Video Conferencing Systems
Meetings involving individuals from different locations generate significant CO2 emissions -- the principal component of which is emissions from travel. The use of video conferencing systems can greatly reduce CO2 emissions associated with employee business trips and other travel. For example, CO2 emissions associated with a single meeting involving two employees each from five cities across Japan and held using Sony's PCS-XG80 HD video conferencing system are estimated to be approximately 1.1 tons*3 lower than would be the case if the same two employees from each of the five cities were to travel to Tokyo to participate in the meeting in person. For a meeting held 24 times a year, therefore, the total annual reduction would amount to approximately 26 tons.

*3
Based on Sony data; premise for calculation is as follows:


CO2 emissions associated with meeting in which employees participate in person
  • Meeting with participation of two employees each from five cities (Fukuoka, Sapporo, Hiroshima, Osaka and Nagoya) traveling to Tokyo
  • Participants traveling between Tokyo and Fukuoka, Tokyo and Sapporo, and Tokyo and Hiroshima, by air; participants traveling between Osaka and Tokyo, and Nagoya and Tokyo are by Shinkansen. Emission coefficient is taken from "CO2 Emissions per Unit of Transport (Passengers) – fiscal year 2008 data" by Ministry of Land, Infrastructure, Transport and Tourism. emission coefficient for emissions for aircraft: 0.108 kg of CO2/passenger kilometer; emission coefficient for Shinkansen: 0.019 kg of CO2/passenger kilometer.

CO2 emissions associated with meeting held using video conferencing system
  • CO2 emissions from meeting held associated with use of PCS-XG80 HD video conferencing system linking six locations and six displays (KDL-32EX300) for two hours plus CO2 emissions during manufacture of equipment distributed proportionally over the number of times the equipment is used (assuming 24 times annually for 10 years)

    Emission coefficient is taken from "The Federation of Electric Power Companies of Japan's calculation for emissions per unit of end-user electricity for actual figures in fiscal year 2008"; emission coefficient : 0.444 kg of CO2/kWh.


  • PCS-XG80 HD video conferencing system
    PCS-XG80 HD video conferencing system






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