Electricity-Saving Measures to Be Taken at Data Centers This Summer
NRI's Response to "Restrictions on the Use of Electricity under Article 27 of the Electricity Business Act"

Under "Concerning Restrictions on the Use of Electricity under Article 27 of the Electricity Business Act" announced by the Ministry of Economy, Trade and Industry on May 25, 2011, data centers were designated as "demand facilities essential for stable economic activities and civil life" eligible for the mitigation of restrictions on the use of electricity. Therefore, Nomura Research Institute, Ltd. has filed an application for the mitigation measure for the data centers we operate, which has been granted by the Ministry of Economy, Trade and Industry.

We will strive to achieve the criteria for restrictions on the use of electricity by taking the following electricity-saving measures while maintaining the stable operations of the data centers that support social infrastructure.

Main electricity-saving measures to be taken at the data centers this summer:

• Upgrading of air-conditioning equipment to energy-saving types (already completed);
• Reduction of electricity necessary for air conditioning through procurement of cold water from district heating and cooling (DHC) suppliers using gas facilities; and
• Reduction of lighting equipment (restrained use) and adjustment of air conditioning in places other than computer rooms.

We would like to ask for your understanding as we intend to continue as much as possible to implement electricity-saving measures even after the application of the mitigation measure to our data centers.

With the supply and demand of electricity remaining very tight this summer, we see it necessary to anticipate contingencies such as an interruption of electricity supply. Therefore, we will take every possible measure to ensure the stable operations of the data centers, including a checkup of our private electricity generation equipment, fuel servicing and our readiness in the event of an interruption of electricity supply.