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Social InfrastructurePower Systems

Unit 1 of the Haramachi Thermal Power Station, operated by Tohoku Electric Power Co., Inc., suffered the greatest damage among the thermal power plants affected by the Great East Japan Earthquake and subsequent tsunami disaster on March 11, 2011. The 18 m tsunami reached as high as the second floor of the turbine building, and a number of devices were damaged by seawater.

In the chaotic aftermath of the earthquake, Toshiba had to remove damaged equipment, confirm the soundness of the facilities, and harmonize with the recovery work for Unit 2 (made by another manufacturer) so that power generation could be restarted as early as possible. In order to achieve such an unprecedented restoration, we organized “Team Haramachi” together with power companies and equipment manufacturers. We did our best to identify ways to restart the station without sacrificing stable operation, to shorten the delivery terms for the repair or procurement of equipment, and to improve the efficiency of the work.

Restoration of Haramachi Thermal Power Station Unit 1

First floor of turbine building at Haramachi Thermal Power Station Unit 1 after restoration from earthquake damage

The final unit of the Gongguoqiao Hydropower Station located in Yunnan Province, China, started commercial operation in June 2012. The hydropower station consists of four main machines. The time required from the start of design to completion of the machines was only four years, and all of the machines are operating as planned.

Toshiba Hydro Power (Hangzhou) Co., Ltd. (THPC), one of Toshiba’s major overseas production bases, concluded a contract with China Huaneng Lancang River Hydropower Co., Ltd. for the design, manufacture, and supply of turbines and generators for the project. The turbine, with a 7 m runner, was the largest such machine that Toshiba had ever designed and was fabricated together with THPC. A runner manufacturing facility

Start of Commercial Operation of Final Unit at Gongguoqiao Hydropower Station, China

Interior of Gongguoqiao Hydropower Station, China

Installation of generator rotor

was built at the site due to restrictions on transportation. The rotor spokes of the generator were also assembled at the site. The generator stator core was clamped by the through-bolt system. Before detailing the design of the generator, we conducted an electromagnetic analysis to verify that there was no problem with respect to temperature rise or loss via the through bolts.

Although the low-head power station is located below the reservoir dam, the tailrace tunnel is very long including one common tunnel with a surge tank for controlling hydraulic transient phenomena. However, a simultaneous load rejection test on multiple units confirmed the safe operation of the turbines.

The ratings of the turbine and generator are as follows:· Turbine: 230 MW-66 m-93.75 min-1, 4 units· Generator: 250 MVA-15.75 kV-93.75 min-1-50 Hz, 4 units.

As a result, we were able to complete the work dramatically ahead of schedule and the station restarted operation on January 28, 2013, 22 months after the earthquake and about six months earlier than expected. The completion of the station marked the end of restoration work for all the damaged thermal power stations.

First floor of turbine building at Haramachi Thermal Power Station Unit 1 immediately after Great East Japan Earthquake

Manufacture of runner at site factory

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The Yokohama Smart City Project (YSCP) is one of the largest-scale smart city experiments in Japan. The YSCP covers an area of approximately 440 km2 with a population of around 3 700 000. The project, supported by the city and residents of Yokohama and private companies, is testing a wide-area energy management and demand response (DR) system and aims to reduce carbon dioxide (CO2) emissions by 25%.

Toshiba has completed development of the platform for the DR system and started test operation, and a full-scale operating experiment involving about 2 000 households

Contribution to Promotion of Yokohama Smart City Project

Use of Toshiba EMS solutions

CEMS(Toshiba, Accenture)

Smart mansion(MEMS)

(Daikyo Astage)

Apartment HEMS(Tokyo Gas, NTT-F,

NTT Docomo)

Smart BEMS(Toshiba, Taisei)

Clustered BEMS(Toshiba)

Smart FEMS(Meidensha, Sumitomo Electric)

Demand-side storage(Sony Ericsson, Sharp)

Charging station(JX Nippon Oil & Energy)

Commercial facilityBEMS (JGC)

Smart BEMS(Meidensha, NEC)

Home HEMS(Panasonic)

CWD(Nissan)

Storage SCADA system (Toshiba)

Storage SCADA

HEMS

FEMS

BEMS

CEMSEV

HEMS (4 000 homes)BEMS (0.8 million m2)EVs (2 000 cars)

Verification by wide-area EMS and DR

SCADA: supervisory control and data acquisitionMEMS: mansion EMSFEMS: factory EMSCWD: car wings data center

Storage for supply and demand balance (Toshiba, Hitachi, Meidensha, NEC)

Smart home (mansion*) (JX Nippon Oil & Energy, Mitsui Fudosan Residential, Toshiba)

Home HEMS(Mitsui Fudosan

Residential, Toshiba)

EV charging and discharging (Nissan,

Hitachi, Orix, Orix Auto)

Office building BEMS(Toshiba, Marubeni, Mitsubishi

Estate, Mitsui Fudosan)

3.7 million residents1.6 million homes440 km2

Yokohama City

Overview of YSCP

The following field demonstrations of large- and medium-scale stationary battery systems have been launched as a part of the YSCP. These battery systems are based on Toshiba’s SCiBTM rechargeable battery technology, which offers excellent characteristics including high power input and output with a smaller kWh capacity (i.e., a smaller footprint), as well as a long life of more than 10 000 charge-discharge cycles.· For CEMS 2 (to test the battery supervisory control and

data acquisition (SCADA) system)A large-scale battery system rated 300 kW-100 kWh, for balancing the supply and demand of electricity in a community, began operation at the YSCP Battery Aggregation Technology Center in Kohoku-ku, Yokohama, in October 2012. This battery system is controlled by a battery SCADA system for the purpose of peak shifting and load frequency control (LFC) to stabilize the grid.

Commencement of Operation of Smart Battery Systems in YSCP

300 kW-100 kWh battery system package

Interior of battery system package

50 kW-33 kWh battery system

and 12 commercial and residential buildings is scheduled in FY2013. We will also install a building energy management system (BEMS) in commercial buildings covering a combined area of 800 000 m2, in order to optimize power consumption and help reduce CO2 emissions. Furthermore, by developing an infrastructure that makes possible the introduction of 2 000 electric vehicles (EVs) into the entire area, we are aiming to contribute to the reduction of CO2 emissions in the transportation sector.

The YSCP is a typical example of smart community development utilizing three energy management systems: community EMS (CEMS), home EMS (HEMS), and BEMS. The results obtained from the experiment up to FY2014 will be utilized for community planning overseas.

· For BEMSA medium-scale battery system rated 50 kW-33 kWh, connected to photovoltaic (PV) panels as a consumer battery via a DC bus, began operation at the Taisei Corporation Technology Center in Totsuka-ku, Yokohama, in July 2012. The purpose of this battery system is to improve energy efficiency on the demand side. According to the instructions received from the smart BEMS, the system supplies power to the DC load such as light-emitting diodes (LEDs) and PCs.

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Toshiba has constructed two 2 MW wind turbines as an extension of the Tarkhankut Wind Farm located in Tarkhankut on the Crimean peninsula, Ukraine.

The wind turbines, U88 and U93, manufactured by Unison Co., Ltd. of Korea, take advantage of drive train technology based on a medium-speed geared permanent magnet synchronous generator (PMSG). U88’s hub height is 80 m and its rotor diameter is 88 m, while U93 also has a hub height of 80 m but a rotor diameter of 93 m.

Toshiba supplied the two wind turbines and executed overall project management through a special-purpose company that it established in Ukraine. UNR-28, a local Ukrainian company, undertook the procedures for permits, etc. and performed civil and installation work. This project was the first outcome of collaboration between Toshiba and Unison since the two companies entered into a strategic business alliance in the wind power business in 2011. The project is also a significant accomplishment as a track record in Ukraine and eastern Europe as a whole, where the wind power market is expected to grow in the future.

Toshiba will continue to expand its wind power business in both the Japanese and global markets taking advantage of the expertise accumulated through this project.

Toshiba’s First Wind Power Project in Ukraine

Installation of rotor hub at Tarkhankut Wind Farm, Ukraine

U88 and U93 wind turbine systems in operation

The turbine, generator, and auxiliaries for Te Mihi Geothermal Power Station Units 1 and 2 ordered in March 2011 were delivered to Tauranga, New Zealand, in March and May 2012. They arrived at the Port of Tauranga as scheduled.

The Te Mihi Geothermal Power Station is located in the Taupo volcanic zone in the central part of New Zealand’s North Island. The equipment was transported from Tauranga to Taupo by the customer. Toshiba has sent technical advisors in order to support the construction and commissioning work. Commercial operation will start in October and November 2013.

The rated output of the turbine generator is 83 MW. The main equipment for each unit supplied by us is as follows:· intermediate-pressure (IP) and low-pressure (LP)

turbines with optimized performance according to the required steam conditions

· main stop valve (MSV) and control valve (CV) for each IP and LP turbine

· lubrication and control oil system· direct-contact condenser· air-cooled generator.

Delivery of Turbine and Generator for Te Mihi Geothermal Power Station, New Zealand

Turbine for Te Mihi Geothermal Power Station, New Zealand

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The AP1000TM pressurized water reactor (PWR) developed by Westinghouse Electric Company features proven technology and innovative passive safety systems. Currently, a total of eight AP1000TM units are under construction simultaneously at the Sanmen and Haiyang sites in China and the Vogtle and V.C. Summer sites in the United States, with two units being built at each location.

At Sanmen Nuclear Power Plant Unit 1, the world’s first AP1000TM PWR, the containment vessel top head (CVTH) was successfully placed in January 2013 following the installation of major equipment and components, such as large modules, the reactor vessel, reactor vessel internals, steam generators, pressurizer, and polar crane, inside the containment vessel. Haiyang Nuclear Power Plant Unit 1 achieved the same CVTH milestone in March 2013.

In the U.S., the first nuclear concrete pours for the nuclear island basemat of both V.C. Summer Nuclear Station Unit 2 (South Carolina) and Vogtle Electric Generating Plant Unit 3 (Georgia) were successfully completed in March 2013. The achievement of these milestones has enabled work to proceed on important module installation in the nuclear islands of both units.

Toshiba is supplying the main turbine system components for the four AP1000TM units in the U.S. and plans to deliver other components as necessary. Toshiba is also supporting Westinghouse with site construction schedule and method perspectives based on its broad construction experience. Westinghouse continues to focus

Significant Milestones Achieved in AP1000TM Plant Construction at China and U.S. Sites

Placement of CVTH at Sanmen Unit 1, China

First concrete pour for nuclear island basemat of V.C. Summer Unit 2, U.S.A.

Installation of Toshiba condenser at V.C. Summer Unit 2

In February 2013, Toshiba’s Keihin Product Operations completed shipment of the turbine and generator for Unit 3 at the Vogtle Electric Generating Plant of Southern Nuclear Operating Company, Inc., then in the following month completed shipment of the LP turbine rotor for Unit 2 at the V.C. Summer Nuclear Station of South Carolina Electric & Gas Company. This equipment is for the AP1000TM PWRs that are being constructed by Westinghouse Electric Company at both Vogtle Units 3 and 4 and V.C. Summer Units 2 and 3. Toshiba is supplying the turbines, generators, and major components in their balance of plant (BOP) systems.

The designs of the turbine and generator of the AP1000TM, with output in the 1 100 MW-60 Hz class and 52-inch last-stage blades, were certified by the U.S. Nuclear Regulatory Commission (NRC) in 2011.

Shipment of Turbine and Generator to U.S. Nuclear Power Stations

Shipping of turbine rotor for AP1000TM at Vogtle Unit 3, U.S.A.

Shipping of moisture separator reheater (MSR) for AP1000TM at Vogtle Unit 3

The equipment for Vogtle Unit 4 and V.C. Summer Units 2 and 3 is being manufactured at Keihin Product Operations and the Fuchu Complex, and is planned to be shipped as scheduled.

on the successful delivery of the eight AP1000TM units currently under construction and will make full use of its experience in future AP1000TM plant projects.

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Westinghouse Electric Company has received orders for the AP1000TM PWR for V.C. Summer Nuclear Station Units 2 and 3 of South Carolina Electric & Gas Company, which is under construction in the United States. Toshiba has received an order from Westinghouse for the core barrels for both units, and is in the process of manufacturing the core barrel for Unit 2.

The core barrel is an integral part of the AP1000TM reactor vessel internals that supports the load of the core components (fuel assemblies) and other internal structures and directs the main coolant flow to the fuel assemblies. Advanced quality control compliant with U.S. safety-related component standards and the American Society of Mechanical Engineers (ASME) code is required in its manufacture. It is a cylinder-shaped component of about 3.5 m in diameter and about 8.5 m in height. In order to install fuel assemblies with a high degree of accuracy, it is necessary to manufacture the barrel within a tolerance of ±1 mm using sophisticated machining, can fabrication, and welding technologies.

Completion of the core barrel for V.C. Summer Unit 2 is scheduled for September 2013, and manufacturing of the core barrel for Unit 3 is expected to take place concurrently.

Manufacturing of Core Barrels for AP1000TM for V.C. Summer Nuclear Station Units 2 and 3

Core barrel for AP1000TM

Toshiba has developed a remote-controlled quadruped robot with exceptional ability to walk and carry out tasks in harsh environments such as disaster-affected areas. This robot has high adaptability to rough surfaces, can climb stairs with risers of up to 22 cm in height, and carry objects weighing up to 20 kg. Furthermore, it can carry equipment such as an investigation vehicle and multiple joint manipulators if required.

Utilizing these features, this quadruped robot is contributing to the investigations inside Unit 2 of the Fukushima Daiichi Nuclear Power Station for restoration of the plant.

We will continue to improve the robot’s capabilities for work in harsh conditions including decontamination, maintenance, and investigation tasks in high-radiation environments at nuclear power plants. We are also expanding the application of the robot to a wide variety of areas including security and nursing care.

Quadruped Robot for Work in Hazardous Areas

Approx. 1 m

Quadruped robot for work in hazardous areas

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In the wake of the accident at the Fukushima Daiichi Nuclear Power Station, Toshiba has directed its efforts in this field to improving the reliability of nuclear power plants including the development and upgrading of emergency procedures, while offering proposals to enhance the safety margin of facilities.

These measures to enhance the safety margin ensure that water continues to be injected into the reactor and

Measures to Enhance Safety Margin of Nuclear Power Plants

PP

PP

PP

P

P P

RHR

RCW

Hx

Hx RHRCSPCSP

Reactorbuilding

Countermeasures against tsunami

Waterproofing management

Enhancement of power supply

Alternate power source

Enhancement of cooling system

Alternative RCW cooling unitSpares of seawater pump and motor

Modification of instrumentationto handle severe accident

Device for monitoring SFPwater level and temperature

Mitigation of effects on environment and removal of heat

Filtered vent

RCICRCIC

HPCSHPCS

PSFP

Enhancement of injection system (high pressure)

HPCS, AFI

P

Enhancement of injection system (low pressure)Enhancement of injection system (low pressure)

Low-pressure injection(seismic MUWC)

Seawall

Intake chamberIntake chamberSeaSea

Discharge pitDischarge pit

Prevention and mitigation

Prevention

Mitigation

SFP: spent fuel poolHPCS: high-pressure core spraying systemRCW: reactor building closed water systemRCIC: reactor core isolation cooling systemAFC: air fin coolerDG: diesel generatorMUWC: make-up water condensation systemRHR: residual heat removal systemCSP: condensate storage poolHx: heat exchangerAFI: alternative feedwater injection systemP: pump

Enhanced safety features

Toshiba has developed a new spent fuel pool water level and temperature monitoring system for nuclear power plants. Our system has the following features: · The system can make measurements from the normal

water level to the water level at the top of the spent fuel storage rack. The interval of measuring points is typically one meter, based on our analysis of decreases in the water level of spent fuel pools. The interval and number of measurement points can be changed, if required.

· The detector consists of a stainless steel protection tube and mineral insulated (MI) cables. Each cable contains a sheath type thermocouple and heater. This structure offers robustness against severe environmental conditions, such as a temperature of 100°C (boiling), 100% relative humidity, and high radiation levels.

· Power for the system can be supplied by either an AC or DC power source (including portable generators and

Spent Fuel Pool Water Level and Temperature Monitoring System for Enhancement of Nuclear Power Plant Safety Power

Signal processing unit

Indicator

Recorder

Sheath typethermocouple

HeaterMeasuring point

DetectorControl panel

In water

In air

TimeTem

pera

ture

Hea

ter

OffOn

MI cable tip

Spent fuel pool water level and temperature monitoring system

replaceable batteries). To achieve power saving, the heater is heated intermittently by the pulse-regulated method.

containment vessel, heat is removed properly, and the power supply that drives such functions is secured in the event of a power plant suffering a disaster that is beyond the design standards. The measures, which include the installation of filtering devices to limit the release of radioactive substances into the environment, are modified to strengthen the independence of safety facilities in conjunction with existing facilities so as to improve the level of protection. It is planned to introduce these measures into each power plant at the optimal timing according to the global trends and new national safety regulations that are being formulated in Japan.

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Tata Power Company Limited successfully started commercial operation of the first unit of its supercritical pressure turbine/generator (242.2 bar absolute/565°C/593°C, rated output 830 MW) at the Mundra Ultra Mega Power Plant in the Kutch District of Gujarat, India, in April 2012.

This is one of seven Ultra Mega Power Projects being led by the Indian government. The power plant consists of five large-sized supercritical-pressure machines (830 MW each), which require high efficiency and reliability since the station is expected to play a key role in providing stable power supplies throughout the rapidly developing country.

The TC4F-42” turbine and 960 MVA generator were developed by Toshiba. A 50 Hz, 830 MW tandem steam turbine requires state-of-the-art technology and fine-tuned manufacturing capability to stabilize the axis.

Among the Ultra Mega Power Projects, this was the first to start commercial operation. Units 2 through 5 are expected to follow suit.

Completion of Ultra Mega Power Project in India

Steam turbine generator for Unit 1 of Mundra Power Plant, India In June 2012, Toshiba was awarded a contract to supply the power plant system for Unit 7 of the Nishi-Nagoya Thermal Power Station operated by Chubu Electric Power Co., Inc. The new system is composed of two blocks of gas turbine combined-cycle power plants with a rated power output of 1 100 MW per block.

Each block is based on a multishaft power train configuration consisting of three gas turbines, three heat recovery steam generators, and one steam turbine. The key features of this state-of-the-art, environmentally friendly power plant are high efficiency, high power output, and low emissions of nitrogen oxides (NOX).

Utilizing General Electric Company’s latest 7F 7-series gas turbine coupled with our most advanced high-efficiency steam turbine, this power plant is configured to achieve the world’s highest thermal efficiency(*) of 62% (in terms of lower heating valve: LHV) among combined-cycle power generation facilities.

(*) As of June 2012 (as researched by Toshiba)

Acceptance of Order for High-Efficiency Combined-Cycle Power Plant System for Nishi-Nagoya Thermal Power Station Unit 7 of Chubu Electric Power Co., Inc.

Overview of Nishi-Nagoya Thermal Power Station

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Toshiba has upgraded the turbine for Hekinan Thermal Power Plant Unit 1 (700 MW) of Chubu Electric Power Co., Inc., reusing the existing high-pressure (HP) and IP rotors. As a result, the turbine has achieved the guaranteed performance.

The turbine was upgraded by implementing measures in the following areas:· advanced flow pattern (AFP)· snubber blades · clearance control technology with abradable coating and

sensitized packing seals.These measures have contributed to reductions in the

secondary loss, steam leakage, and heat rate. In particular, the heat rate has been improved by 1.48% after the modification (note that this figure includes degradation recovery).

Turbines are generally upgraded with new rotors, but we reused the existing rotors at the request of the customer. Turbine modification using existing rotors would normally be expected to take longer to complete compared with that using new rotors, because the rotors must be transported to the factory for replacement of their blades. However, due to our efforts to shorten the manufacturing time and accelerate the construction work, we were able to complete the turbine upgrade in the same time as would have been required if new rotors had been built.

We also renewed all of the computation and control equipment as a countermeasure against degradation and to improve maintainability. In addition, we took other measures to improve the quality of the products made both at the factory and on-site, and to enhance the efficiency of the procedures. As an outcome of these measures, we successfully completed the upgrading of a total of 59 panels, and gained a high evaluation of our work from the customer.

Upgrade of High- and Intermediate-Pressure Turbine and Replacement of Computation and Control Equipment at Hekinan Thermal Power Plant Unit 1 of Chubu Electric Power Co., Inc.

HP and IP (and low-pressure) turbine rotors for Hekinan Thermal Power Plant Unit 1

Toshiba has delivered four new runners each to the Ohakuri Hydro Power Station of Mighty River Power Ltd., New Zealand, and the Tumut 2 Hydroelectric Power Station of Snowy Hydro Ltd., Australia.

A number of hydraulic turbine runners in existing power plants have recently been replaced to improve hydraulic turbine performance for the purpose of using renewable energy more effectively. Taking this opportunity, we have been utilizing our advanced technologies for the upgrading of hydraulic turbines.

Under the condition that both the Ohakuri and Tumut 2 stations use the existing stationary parts made by the original equipment manufacturer (OEM), we took advantage of our latest computational fluid dynamics (CFD) technology to build a highly sophisticated runner, and achieved improved performance as a result. Specifically, the efficiency at Ohakuri was improved by 5%, while the output at Tumut 2 was improved by 5%.

The ratings of the hydraulic turbines are as follows:· Ohakuri Hydro Power Station:

30.4 MW-31.8 m-125 min-1

· Tumut 2 Hydroelectric Power Station: 85.3 MW-285 m-428 min-1.

Improvement of Hydraulic Turbine Performance by Replacement of Existing Runners

Runner for Ohakuri Hydro Power Station, New Zealand

Runner for Tumut 2 Hydroelectric Power Station, Australia

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The National Institute of Radiological Sciences (NIRS) has started operation of the next-generation irradiation system developed by Toshiba in 2011. NIRS commenced government-certified cancer treatment using three-dimensional (3D) high-speed scanning irradiation in September 2012.

This technology involves scanning by a narrow carbon beam in a raster-like pattern in the vertical and horizontal directions at high speed. The beam also scans depthwise with multistage energy control. Thus, beam irradiation conforming to the shape of the targeted tumor is made possible in a short period of time while reducing damage to normal tissues. In FY2012, NIRS treated about 20 cancer patients per day and completed treatment of more than 120 patients in total.

The Kanagawa Cancer Center, which is constructing a new facility, will also adopt this beam irradiation technology. We expect this technology to play a major role in treatment utilizing heavy-ion radiotherapy equipment.

Start of Government-Certified Treatment by Heavy-ion Radiotherapy Equipment Performing 3D High-Speed Scanning Irradiation

Heavy-ion beam

Scanning magnet

Urethra

Prostate

Rectum

Overview of 3D raster scanning irradiation and dose distribution of scanning irradiation (Radiation exposure of important organs such as the urethra and rectum is reduced by this system.)(Figure and photo courtesy of NIRS)

Toshiba has developed an advanced high-temperature superconducting yttrium barium copper oxide (YBCO) magnet with rapid cooling and cold storage capability.

In general, although a superconducting magnet that does not require coolant is easy to use, it has the disadvantages that a long time is required for initial cooling and that the magnet temperature rises quickly when the cryocooler becomes inoperative.

We have established a technology for rapid cooling that realizes initial cooling within 24 hours and allows continued use of the magnet for more than an hour due to high cold storage capability, even if the cryocooler suddenly comes to a halt. This was achieved by modifying and optimizing the cooling structure of the YBCO coil. We plan to apply this technology on a wide scale to our high-temperature superconducting YBCO magnets.

High-Temperature Superconducting YBCO Magnet with Rapid Cooling and Cold Storage Capability

830 mm

High-temperature superconducting YBCO coil with rapid cooling and cold storage capability

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Landis+Gyr AG, a member of the Toshiba Group and a leading company in the global market for electric power smart meters through its development of meters and system products based on the latest smart grid technologies, completed development of its advanced S650 smart grid terminal (SGT) and E650 smart meter in 2012. These two products have the following features:· S650

The S650 SGT is Landis+Gyr’s first smart grid product that supports utilities by controlling their low-voltage network and streetlight feeders. The S650 terminal is installed in low-voltage transformers at photovoltaic connection points or in power distribution splitters. In addition to measuring the power consumed by users, the terminal is capable of addressing the following requirements for power companies to control their medium- and low-voltage power grids: power flow control, loss identification, harmonic detection, demand response (load control or photovoltaic output control during tight power supply), and advanced alarming based on the short message service (SMS). Furthermore, as a front-end component, the terminal works in coordination with Landis+Gyr’s smart grid solutions and Toshiba’s Micro Energy Management System (μEMS) solutions that control renewable-energy power generation and power storage.

· E650The E650 smart meter is the first meter to realize direct recording of power at mW·h resolution for the entire current measurement range. It also offers smart grid wireless transmission and secure remote firmware upgradability. Furthermore, the E650 sets the standard in monitoring of electric meters for tampering by such means as a cover removal sensor, a vibration sensor to monitor meter installation and removal, a magnetic field sensor to detect data tampering, and detection of power flow reversal.

Smart Grid Terminal and Smart Meter with Advanced Features

E650 smart meter

The large-scale integrated system for meter data management is an application suite for managing and utilizing the huge amounts of data collected from smart meters. The system consists of the head end system (HES) and meter data management (MDM) software provided by Landis+Gyr AG.

The system offers the following features: · high scalability of up to 10 million meters · highly flexible international standard interfaces · sophisticated administrator graphical user interface

(GUI) promptly reflecting customer demand and trends in the global market. The system provides the core technology for the

Toshiba Group to achieve its smart grid/smart community program.

Large-Scale Integrated System for Meter Data Management

International standard interfaces such as IEC and ANSI

Sophisticated GUI corresponding to global trends

MDM

HES

High scalabilityTrack record of large-scale operations

Utility back end system

ERP CISEAM

Smart meters

RF mesh/PLC/Mobile network

ERP: enterprise resource planningEAM: enterprise asset managementCIS: customer information systemIEC: International Electrotechnical CommissionANSI: American National Standards InstituteRF: radio frequencyPLC: power line communication

System overview

S650 smart grid terminal

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Toshiba has delivered two 63 MVA-220/21 kV gas-insulated transformers (GITs) to the Skolkovo Substation of the Federal Grid Company of the Unified Energy System (FSK UES), Russia. The installation work and site testing were successfully completed in January 2013 and the units began operation two months later.

The project involved delivery of the first GITs to Russia for an underground substation. Since both Toshiba and the engineering, procurement, and construction (EPC) contractors had limited experience in Russia, there had been a delay in the initial stage of construction. However, our team, committed to completion of the project in cooperation with customers and factories, successfully conducted site testing without encountering any major issues and started operation of the GITs in March 2013.

Furthermore, another two GITs having the same ratings

Completion of Site Testing of 63 MVA-220/21 kV Gas-Insulated Transformer for Skolkovo Substation, Russia

63 MVA GIT for Skolkovo Substation, Russia

The market for medium-voltage (MV) switchgears for power distribution systems is expected to grow, particularly in the Middle East and Southeast Asia. Such switchgears must comply with the International Electrotechnical Commission (IEC) standards and are also required to be compact.

In response to this situation, Toshiba has developed the GFE compact cubicle type gas-insulated switchgear (C-GIS) for the IEC market including those regions. We are establishing a manufacturing line for the switchgear at a Malaysian subsidiary company.

The ratings of the GFE type C-GIS are as follows:

Compact 36 kV Cubicle Type Gas-Insulated Switchgear

0.9652

Minimum value0

Maximum valueDeformation (mm)

Example of structural analysis (1 250 A panel at 70 kPa gauge)

Rated voltage 36 kV

Rated withstand voltageLightning impulse 170 kV

Power frequency 70 kV

Rated busbar current 2 500 A

Rated current 1 250/2 500 A

Rated frequency 50/60 Hz

Rated short-time withstand current 31.5 kA (3 s)

Standards IEC 62271-100, 102, 200

as those at the Skolkovo Substation were delivered to the Smirnovo Substation (also an underground substation). We were able to carry out the work at the Smirnovo Substation smoothly due to our experience at Skolkovo.

Taking advantage of these projects, we will continue our efforts to participate in projects involving GITs for underground substations around Moscow.

operation or direct manual operation using a chain on the main shaft.

· The panel has also been downsized, with its weight reduced (to 1 500 kg for the 2 500 A panel) by the use of thin plates (thickness: 3 mm) for the gas frame while ensuring that the requirements for the withstand gas pressure are satisfied through structural analysis.

· A current flow of 2 500 A through the busbar with a cross-sectional area of 2 500 mm2 has been achieved through the optimal arrangement of conductors taking the skin effect and heat radiation into consideration.

DS/ES

VCB

TT

CT

1 800 mm

2 30

0 m

m

DS: disconnecting switch, ES: earthing switch, VCB: vacuum circuit breaker, TT: test terminal,CT: current transformer

Newly developed C-GIS

The features of the newly developed C-GIS include the following:· The C-GIS has been downsized by combining the main

circuit of the disconnecting switch with the busbar. · The number of parts of the disconnecting switch

mechanism has been reduced through direct motor

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Toshiba International Corporation (TIC) has completed the construction and commissioning of five large PV projects in Massachusetts with a combined capacity of 9.2 MWDC. These projects are being developed and are owned by Citizens Enterprises Corporation, a subsidiary of Citizens Energy Corporation, a non-profit organization. Citizens Energy uses revenues from its commercial enterprises to channel millions of dollars into charitable programs in the United States and other countries. TIC was responsible for the design, equipment procurement, and construction of the systems. TIC will also be responsible for monitoring and maintaining the systems for the next 10 years.

All five facilities are ground-mounted systems consisting of 250 W monocrystalline PV panels. The systems were constructed on five underutilized sites in Massachusetts, including a landfill. The power generated by each system is sold to different customers, including municipal utilities, neighboring businesses, and local municipal government facilities, in accordance with power purchasing agreements or net metering agreements concluded with Citizens.

Japan and many other countries are promoting feed-in tariff schemes for purchasing of renewable energy. In contrast, the U.S. encourages renewable power projects with federal tax incentives. However, since the financing for a project is extraordinarily complex, the program is subject to a great deal of scrutiny by lenders and investors.

TIC played a critical role in assisting Citizens to secure a tax equity investor and a lender for the projects. By making the contracts and payment terms flexible, we were able to complete the projects successfully within the budget and on schedule.

Completion of Toshiba’s First Megasolar Projects in U.S.A.

1.8 MWDC Whately Solar Project, U.S.A.

Toshiba has developed the world’s first line differential protection relay that uses built-in Ethernet communication for real-time data transmission(*). This protection relay has been installed and is operating successfully in two 154 kV substations of The Tokyo Electric Power Co., Inc.

In order to detect and eliminate faults, a line differential protection relay compares the locally measured data with data received from the remote ends of transmission lines via communication channels. This protection relay requires a synchronized data sampling function in all terminals. To achieve this synchronization, existing protection relays utilize expensive dedicated communication technologies such as plesiosynchronous digital hierarchy (PDH) technology to avoid the effects of jitter and channel asymmetry.

We have developed a new line differential protection relay utilizing built-in wide-area Ethernet communication to reduce costs, including the cost of the communication system. This new protection relay is created by adding two functions to Ethernet: one to precisely control the data transmission time, and the other to measure the data receiving time. In addition, the new protection relay can improve reliability through duplicated communication channels.

(*) As of December 2012 (as researched by Toshiba)

Line Differential Protection Relay Based on Wide-Area Ethernet Technology

Tripcommand

Analogdata

Tripcommand

Analogdata

Transmission lineCircuit breaker Circuit breaker

Switching hub(L2 switch)

Wide-area Ethernet (1 Gbit/s)

Wide-area Ethernet (1 Gbit/s)

Line differential protection relay based on wide-area Ethernet technology

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The on-line integrated stability control (ISC) system of Chubu Electric Power Co., Inc., constructed for the purpose of stabilizing the power system in the Nagano area including the newly established Joetsu Thermal Power Station, entered commercial operation in May 2012. The power transmission line linking the 500 kV trunk network and the Joetsu Thermal Power Station extends over a long distance of approximately 300 km, giving rise to the need for a system to ensure the quality of the electricity supply.

In order to meet this need, the comprehensive ISC system has been introduced to maintain the stability of the voltage and frequency as well as the overall power system in the Nagano area. Toshiba developed the central processing unit (A series) and peripherals including the intersection for the ISC system.

On-line Integrated Stability Control System of Chubu Electric Power Co., Inc.

Scene of system operation in ISC room

Electric current is supplied to DC electric trains via DC switchgears, which consist of a DC circuit breaker, disconnecting switch, measurement and protection equipment, and other devices. Toshiba has manufactured DC switchgears for the Japanese railway system since the 1970s and has recently developed a DC switchgear that is operable in overseas railway systems.

The new DC switchgear was dramatically downsized by reducing the floor area of one feeder by 57.5%. Furthermore, a DC protection relay containing protection, control, measurement, and international-standard network functions in a single unit was concurrently developed to enhance the efficiency of the sequence circuit. The protection relay has reduced the need for protection and control panels that had been installed separately. The relay also contributes to space saving for the entire substation.

As of December 2012, we have delivered 21 panels for three substations belonging to the Directorate General of Railways of the Ministry of Transportation, Indonesia.

DC Switchgear and DC Protection Relay for Railway Systems

DC switchgear for Klender Railway Substation, Indonesia

Operation panel of DC protection relay