Reconstruction support in disaster-stricken areas affected by the Great East Japan Earthquake
In 2012, KDDI set up the Reconstruction Support Office to assist full-fledged community-building efforts in the 3 Tohoku prefectures (Iwate, Miyagi and Fukushima) stricken by the Great East Japan Earthquake. This office is actively participating in new community-building efforts by leveraging KDDI’s experience and expertise in the use of ICT and cooperating with government agencies and people in the local communities.
The Reconstruction Support Office dispatches KDDI employees to government agencies in the stricken areas, plans ICT services and provides expertise to promote the development of reconstruction support activities in a way that only KDDI can. Members of the Reconstruction Support Office live in temporary housing as they seek to meet needs that are expressed, uncover hidden needs, and direct reconstruction support activities in the regions to which they are assigned.
Initiatives to reduce electricity consumption and boost disaster preparedness
The dense blanket of KDDI’s “au mobile” phone base stations covering Japan accounts for 60% of the total energy consumed by KDDI. Furthermore, expanding the 4G LTE service area is causing this consumption to increase, so KDDI is placing topmost priority on initiatives to reduce the electricity that base stations consume.
Other risks came to the fore in March 2011 when the Great East Japan Earthquake struck, namely the risk of base station power outages. Some 77% of the base stations that ceased to operate in the aftermath of the earthquake (in 6 Tohoku prefectures, as of March 12, 2011) did so because of power outages. Clearly, disaster preparedness measures that address power outages are a pressing topic.
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KDDI has been using 3 types of power—commercial electric power, solar generation, and batteries—for its base stations since 2009. These “au mobile” base stations employing Tribrid* Power Control Technology (Tribrid Base Stations) determine the type of power used according to the time of day and changes in the weather. KDDI is using this know-how to reduce environmental impact and ensure disaster preparedness by increasing the number of Tribrid Base Stations and base stations whose battery life has been extended to 24 hours. Serving as backup in case power is interrupted, KDDI has installed batteries with life extended to 24 hours at 2,000 base stations (as of March 31, 2013) in prefectural and municipal government offices and train stations serving more 100,000 passengers per day.
Technological development to improve communications quality - providing the shortest route between seven Asian countries and the United States through SJC
In 2013, KDDI began operations of the optical submarine cable, the South-East Asia Japan Cable (SJC) in order to meet the large capacity communication needs of the internet age. Japan is at its hub connecting the shortest route between Singapore and other Southeast Asian data centres to the United States' west coast data centre. SJC connects Japan to Singapore and branches out to all regions of Southeast Asia (Mainland China, Hong Kong, Brunei, Philippines, Singapore and Thailand) for a total length of 8,900 km and 28Tbps of large volume broadband communications made possible with optical submarine cables. Asian countries will be able to use this huge capacity for the demand such as ultra-high speed internet including High Definition video or increasing demand on Intranet. By introducing SJC, KDDI will continue to provide even more reliable communication services to the Asian and Pacific Ocean regions in order to meet the expected growth in communication needs.
Using Natural Energy
The "+α Project" for Employee-participatory Social Contribution Activities
The "+ Project" is a social contribution program run proprietarily by KDDI and driven by employee participation. In this project, KDDI grants points to project members for their social contributions, whether performed in conjunction with or independent of KDDI. Accumulated points are converted to monetary amounts, at the rate of ¥100 per point, based on which KDDI makes donations to charity groups recommended by members. As of March 31, 2013, approximately 6,800 employees throughout Japan were registered as project members. In FY2012, KDDI made contributions to 30 charity groups, including "Tamashiro no Sato," an institution that provides support to people with hearing and other disabilities.
In order to actualise better energy conservation and CO2 emissions cuts at KDDI, a portion of the electric power used at large scale communications stations like the Yamaguchi Satellite Earth Station, Oyama Network Center No. 2, the Tokyo Technical Center and almost all electrical power at six mobile telephone base stations including Hokkaido and Aomori come from natural energy sources such as solar power. Since 2013, KDDI has been making great progress in introducing renewable energy, focusing on its Tribrid Base Stations.
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