SmartGrids for e-mobility

Connecting electric vehiclesto the local grid

BEAMA 2011

Roger HeyEnergy Projects Manager

Central Networks

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© 2007 E.ON

© 2007 E.ON

The way customers use energy is changing….

…. . many customers will increasingly make their own,

….. and many will use it in different ways to ….

….. heat their homes ….. and move around

20 April 2023, E.ON, Page 3

© 2007 E.ON

The way customers use energy is changing ….

…. but what they want from their network company is very similar to today

20 April 2023, E.ON, Page 4

Make it easy for customers to connect Low Carbon Solutions

Del

iver

exc

elle

nt s

ervi

ce

“Kee

p th

e lig

hts

on”

Keep customer bills as low

as

possible

FUTURE NETWOR

KS = INNOVAT

ION

© 2007 E.ON Page 5

0.00

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0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0

Time (hrs)

Po

wer

(W

)

9kWh battery capacity charging12kWh battery capacity charging35kWh battery capacity charging

Electric Vehicle Charging – disruptive change?

Increasing battery capacity

Nominal 13A

• More obvious issues with wiring capacity and connectors

• Less obvious issues with local grid constraints (designed for typically 1.5kW to 2.5kW per household)

© 2007 E.ON Page 6

Modelled Impact of Charging Electric Vehicles

• Indicative test results of Household demand/ EV charging in a small/medium sized city.

• Demonstrating the effects of people returning home in the evening and plugging in their vehicles.

• Graph shows 10% to 50% uptake of households with EVs.

• Based on 5-7% of miles travelled by Electric Vehicles by 2020 .

0 2 4 6 8 10 12 14 16 18 20 22 240.00

50.00

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Lo

ad (

MW

)

Time of day (hours)

EV uptake: 50%

EV uptake: 40%

EV uptake: 30%

EV uptake: 20%

EV uptake: 10%

Nominal load

© 2007 E.ON

The “SmartGrid”

20 April 2023, E.ON, Page 7

© 2007 E.ON 20 April 2023, E.ON, Page 8

E-ON-Smart-Grids.flv

© 2007 E.ON

A new energy system requires more intelligent networks

Invest in copperDescriptionReinforce the networks

ConclusionRisk of unnecessary costs

Invest in intelligenceDescriptionInvest in energy network intelligence and flexibility:

Conclusion Increased flexibility Future-proof solution Efficient investment Support sustainability

…and how we get the electricity to them is even smarter!

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Combining these steps

allows for the optimum

network of the future

© 2007 E.ON

E-Mobility / Low Carbon Network

– Demonstration Projects (1)

CABLED

•Network of 40, fully monitored,

charging points in Coventry and

Birmingham

•Measure impact of vehicles on local

grid and test innovative remedial

actions

•Customer behavioural insight

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0

5

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Nu

mb

er o

f u

nit

s at

th

e b

egin

nin

g o

f ea

ch M

on

th # of Electric Vehicles

# of Charge Points

0

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14

Cu

rren

t (A

)

Recharge Time (hh:mm)

Smart ED

iMiEV

© 2007 E.ON

E-Mobility / Low Carbon Network

– Demonstration Projects (2)

ELVIS – Milton Keynes PiP•Three phase charge points -monitored and controllable•Inductive charging – network implications and opportunities

MIDLANDS PiP (Extension CABLED)•Quick DC charging at selected motorway services (100kWh – 20 mins)•Local storage and generation opportunities

Page 11

© 2007 E.ON

Key goals ……..

1. Confirm impact on the Local Grid

2. Determine the most cost effective way of providing connections

3. Better understand customer uptake profile and pattern of use

4. Evaluate regulatory models for funding infrastructure

Page 12

What would help? More electric cars please!