Smart Gridm5151117

Yumiko Kimezawa

August 12, 2011 1Colloquium

Outline

• Background• What’s Smart Grid ?• Goal of Smart Grid• Conceptual diagram• Smart meter• Drawback of Smart Grid• Conclusion

August 12, 2011 Colloquium 2

Background

August 12, 2011 Colloquium 3

Traditional electric power•Thermal power plant

- Burn coal- Burn heavy oil

CO2 emission

Alternate energy• Solar electricity• Wind power

Affected by the weather

Smart GridStable electric power supplies

What’s Smart Grid ?

• Introduction of IT into a grid ( power network)- Controlling flow of electricity from both supply

side and demand side- Optimizing the use of electric

August 12, 2011 Colloquium 4

Goals of Smart Grid1. Monitoring amount of power used at office or home in detail

2. Holding electrical needs constantly

3. Adjusting to production of electricity in detail

4. Monitoring production of electricity in unstable way (Solar electricity, Wind power)

5. Management of electric power selling

6. Countermeasure for electrical power saving

August 12, 2011 Colloquium 5

•Decrease of wasteful energy production•Reducing emissions of CO2•Low loss of electrical energy

Advantages

Comparisons with traditional grid

August 12, 2011 Colloquium 6

Traditional grid

Supply

Demand Demand

Demand

DemandDemand

Demand

Smart grid

Supply

Demand

Demand

Demand

DemandDemand

Demand

Supply: Information and telecommunications networks

Flow of electricity: Information and telecommunications networks

Flow of electricity

( Some is supply)※

EV

Smart meter

• Electrical power meter for the realization of Smart Grid- Monitoring electricity use of any houses or business offices- Reporting to electrical power companies on monitoring results- Having functions such as adjusting electricity use automatically

August 12, 2011 Colloquium 7

If smart meters become popular

•Holding electricity use at any time become possible- It’s not necessary to read electricity use by people

•Detailed distribution of electrical power- Cutting wasteful plants for electrical generation

Drawback of Smart Grid

August 12, 2011 Colloquium 8

•Security- Infrastructure of Smart Grid• Advanced communication systems and techniques

- Insufficient measures towards security

It is essential to overcome vulnerability of security

But

Conclusion

• Smart Grid is useful for future generations- Global heating countermeasure- Planned blackouts countermeasure

• In Japan, Smart Grid will be planning gradually

• Smart Grid is facing the problem of security

August 12, 2011 Colloquium 9

August 12, 2011 Colloquium 10

Conceptual diagram

August 12, 2011 Colloquium 11

Hydroelectric plant

Wind power plant

Atomic power plant

Thermal power plant

Photovoltaic power plant Electric

vehicle

Office buildingFactory

Charging facility for EV

Controlled by IT

Substation

Houses

Rechargeable battery

Rechargeable battery

Control for electric transmission

Flow of electricity

Controlled by IT

Equipment for saving energy

Commerce facility

Solar panel

Smart meter

• Electrical power meter for the realization of Smart Grid

• Concept holding electrical needs and the situation of generating electricity in detail and

• Allocating them to every demands in an optimal condition

August 12, 2011 Colloquium 12