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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