In our concerted efforts to secure electricity supply, we have organized 
an action plan to introduce a combined cycle system by upgrading the gas 
turbine facilities that we are installing on the grounds of Chiba Thermal 
Power Station.

To be precise, in the wake of the earthquake of March 11, 2011, under the 
stringent condition of demand and supply balance, we will start commercial 
operation of three gas turbines (1,002MW: 334MW×3units) in order to secure 
electricity supply as emergency measures, for which we will compete 
installation on the grounds of Chiba Thermal Power Station by July 2012, 
as per scheduled. After that, we will have all of the three gas turbines 
upgraded to combined cycle system for regular use by July 2014.

As a result, the total output will reach 1,500MW (500MW×3units) with the 
thermal efficiency of 58%, adding 500MW to the existing plan, as well as 
reducing environmental impact.

We will continuously make utmost efforts to secure electric power supply. 
In response to the demand and supply balance changes due to unplanned 
outages and demand increase, we will be steadfast in electricity supply by 
running the emergency power sources we installed last year. 

Attachment: Overview of the plan for upgrading gas turbine facilities to 
            combined cycle system (PDF 107KB) 
Reference: Upgrade of gas turbine facilities to combined cycle system 
                                                              (PDF 105KB)