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Greg Payne

Modelling & Simulation Lead

Sciurus: Key Findings From Final Insights Report

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Presentation title goes here

About Us

Independent

Not-for-profit

Experts

Lowering your emissions through innovation in transport and energy infrastructure

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Data from each V2G unit on the trial has been collected and analysed.

Results from an online survey of participants was incorporated.

Data collected was run in our in-house model.

The importance of V2G customer archetypes was assessed.

Introduction to Analysis

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Pre-Lockdown National Lockdown 1 Tiered Lockdown 1 Tiered Lockdown 2

National Lockdown 2

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Pre-Lockdown National Lockdown 1 Tiered Lockdown 1 Tiered Lockdown 2

National Lockdown 2

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Plug-in Availability During Trial

Typical Domestic EV Plug-in Availability:

Trial Plug-in Availability:

Lockdown Plug-in Availability:

30%-40%

56%

70%

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Actual Plug-in and Energy Profile

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Modelling from Trial Data

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Modelling Approach

Archetypes & EV

parameters

Tariff, FFR & DC prices

EV Charging/ Driving Data

Optimised Charging Schedules & Grid Service Participation

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£120/€140

£340/€400

£513/€600

£725/€850

£0 £100 £200 £300 £400 £500 £600 £700 £800

Optimised Smart

Optimised V2G

Optimised V2G + FFR

Optimised V2G + DC

Annual Per Chargepoint Revenue

Note: Against a HH settled unmanaged charging baseline

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Weekly Value of Optimisation During 2020

Note: Spot market price spikes occurred in weeks 10, 37 and 49

0

10

20

30

40

50

60

70

80

90

100

£-

£2.00

£4.00

£6.00

£8.00

£10.00

£12.00

£14.00

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51

kWh

Week Number

Value of Optimised Smart Per EV (£) Value of Optimised V2G Per EV (£) Mean Driving Energy (kWh)

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Weekly Value of Grid Services During 2020

40%

45%

50%

55%

60%

65%

70%

75%

80%

85%

£-

£2.00

£4.00

£6.00

£8.00

£10.00

£12.00

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51

Week Number

Absolute FFR Value Per EV (£) Absolute DC Value Per EV (£) Mean Availability per week (%)

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Does Size Matter?

Note: Incremental V2G value is the value of the V2G optimisation above the Smart optimisation

£0

£50

£100

£150

£200

£250

£300

0 10 20 30 40 50 60 70

Incr

emen

tal V

2G

Val

ue

Battery Size (kWh)

Incremental V2G Value

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• Targeted Charging Review will remove time of use based TNUoScharges in April 2022

• DUoS export rates for domestic premises will become shaped from April 2021

• The Net Impact: ~ 50% reduction in tariff optimisation income for V2G

• However, emerging balancing services (e.g. DC), and wider access to the Balancing Mechanism could form additional income.

Future Changes To Revenue (UK, Policy)

£173/€200

£340/€400

£0 £50 £100 £150 £200 £250 £300 £350 £400

Optimised V2G After TCR

Optimised V2G

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Presentation title goes here

High Level Business Case

£1,000 ~ €1,175

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Cenex previously produced a portfolio of V2G customer archetypes.

See our public report “Understanding the True Value of V2G” 2019.

Domestic V2G Archetypes

Home

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40-60%

1k-10k

Usage

Age Range: Parking Pattern: Predictable

Income Bracket: Type of trips: Short/Medium

Employment Status:

Vehicle Ownership Type:

Battery Life Conservation: Charging Location: Mostly at this location

Primary Motivation: Location

Vehicle Building ownership type: Owner

Battery Size: On-site renewables: Yes

Type of vehicle: Parking Location: Varied

Small

Midsize car

Primary User

Varied

Employed

Owned

Key Information:

V2G Location:

High

No. of EVs using charge point:

V2G Availability:

Potential no. in the UK:

40-60

%age of plugged-in time used for

charging:

First Generation EV Owner

This is someone in their 50’s or 60’s who is an early

adopter of technology. They already have PV on their

home, and now an off-street V2G charger. They are

very energy conscious and would like to maximise

battery life. The car is an early EV, used for

commuting in the day but spends most of the rest of

the time plugged in at home.

20-40%

Environmental

Technology Progression

2020 2030 2040

BEVPHEV

N/A

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Archetypes of Survey RespondentsFirst Generation EV Owner, 5

The Conservative Eco-Professional, 15

The Eco Young Professional, 3

The Eco-Professional, 14

The Mid-level Manager, 1

The City Estate Agent (City based), 6

The Family Car, 19The One Car Wonder, 10

The Retired Professional, 22

The Run-around (EV as 2nd Car), 29

The Self-employed Taxi Driver (e.g. UBER), 9

Utility-Style Fleet Vans (Council vehicles/ energy suppliers), 4

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Value of Archetype for Smart Charging

-

1,000

2,000

3,000

4,000

5,000

6,000

£-

£50

£100

£150

£200

£250

£300

kWh

Optimised Smart Value Mean Annual Equivalent Driving Energy (kWh)

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Value of Archetypes for V2G

Note: Incremental V2G value is the value of the V2G optimisation above the Smart optimisation

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

£-

£50

£100

£150

£200

£250

£300

Incremental V2G Value Mean EV Availability

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Conclusions

• With incentives, V2G EV drivers do plug in significantly more.

• Experience of the technology alleviated most concerns from the participants.

• Not all residential customers are equal, the right archetype improves the business case.

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Recommendations

• Value from flexibility can fluctuate significantly. Consequently, value propositions should seek to be able to switch between several revenues streams in order to mitigate risk.

• Being able to stack revenue streams is important:

– More granular tariffs with greater volatility help V2G

– Optimisation should be able to capitalise on wholesale price spikes

– Providing grid services in addition to arbitrage

• Initial financial cost to customers should be reduced, either via hardware cost reductions, or a revised proposition.

• EV with batteries of 40 kWh and above should be targeted in preference to smaller batteries.

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Further Information

• Commercial Viability of V2G –Project Sciurus White Paper

• Sciurus Trial Insights - Report

• A Fresh Look at V2G Value Propositions - Report

• Understanding The True Value of V2G - Report

All available for free.

Search ‘V2G’ on the Cenex website: https://www.cenex.co.uk/?s=V2G

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Thank you for listening

Thank you for listening

Greg Payne

Modelling & Simulation Lead