Low Power Electric Vehicle Charging · Balancing and Settlement Code (BSC) Requires consumption to...
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Low Power Electric Vehicle Charging Sept 2016 Presented by Tom Chevalier
Transcript of Low Power Electric Vehicle Charging · Balancing and Settlement Code (BSC) Requires consumption to...
Low Power Electric Vehicle Charging
Sept 2016
Presented by Tom Chevalier
Content
Overview
What is the challenge?
Who are ubitricity?
What is the hardware?
Electricity Settlement
Mobile meter
CMS approach
Trial
Summary
Stakeholder engagement
Next steps
Overview
What is the challenge?
Who are ubitricity?
What is the hardware?
Challenges facing local authorities:
EV usage expected to rapidly increase
Requirement to provide charging points for EV drivers
Planning permission for designated EV charging spaces
Non EV resident complaints about preferential treatment
Planning permission for a designated fast/rapid charging
cabinet with a meter (cost, street clutter, length of time to
install, line painting, signage, reduced parking revenue…)
Proximity of fast/rapid charging point to EV resident
High cost of fast/rapid chargers
ubitricity has developed a solution for residents with
electric vehicles without off-street parking
What is the challenge?
Who are ubitricity?
Problem:
How to facilitate on-street residential charging?
How to make charging points more ubiquitous?
Developed a hardware & software solution to enable
electric charging points to be more ubiquitous
ubitricity is a German company www.ubitricity.com/en
Other ‘behind the meter’ use cases:
Company vehicles – charge at home & work
Communal parking in apartments
What is the hardware?
Functionality of all EV charging infrastructure:
Power supply
Metering/measurement – determine energy used
Authorisation – enable power only to authorised users
Communication – enable authorisation & capture energy usage
User interface – to enable information display and access
Typically this has been achieved through fast and rapid chargers which incorporate all the functionality in a single box
The ubitricity approach is:
“Slower” charging - up to ~16A or 3.5kW
Split the functionality between the SimpleSocket and the SmartCable
Keeping the SimpleSocket as cheap as possible to enable it to be ubiquitous
SimpleSocket
Cheap so can become ubiquitous
Installed in street furniture by local authority staff or their lighting contractor
Standard EV charging socket & interface
Socket physically retains plug when powered, released by EV driver
Authorisation with SmartCable required before socket is powered
Each socket has a unique identity
Ubitricity maintain a live inventory, including:
Unique socket identify
Location, including relevant Distributor
Unmetered or ‘behind a meter’
SmartCable
Stays with vehicle
Includes MID* approved meter
Includes mobile communication
Meter records data by quarter hour
User display and keypad
Without authorisation the SmartCable will not initiate power from the socket
Each SmartCable has a unique identity
Lost or stolen SmartCable can be ‘unauthorised’
Communication of meter reads, SmartCable and SmartSocket identities after each charge to ubitricity
*MID – Metering Instruments Directive, see SI1679.2006
Energy Settlement
Mobile meter
Mobile meter via CMS
Trial
Mobile meter
The ubitricity solution is a mobile meter
GB settlement arrangements cannot [currently]
accommodate a meter which moves across different
Distribution Networks and GSP Groups
Using the measured consumption through the CMS
unmetered arrangements will provide a robust solution:
Accurate settlement volume (kWh)
Accurate settlement profile (quarter to half hourly)
Attributes the mobile measured energy to the correct Distributor
and GSP Group
Mobile meter via CMS
Inventory - SimpleSockets Ubitricity maintain a live inventory of all sockets – essential for authorisation
Regular listing of all unmetered sockets within the Distribution area – inventory submission to UMSO
A charge code of nominal 1000 watts used for each socket
Inventory submission converted into CMS Control file
Event Log – measured consumption Metered quarter hour consumption from MID meter
During the authorisation process the SmartCable captures the identity of the SimpleSocket used for a charge
The metered consumption is thereby associated with the SimpleSocket
An event log is created for events for every SimpleSocket within each Distribution area
The metered energy is converted to a percentage (0-999.99%) which enables a single socket to reflect a load range of 0-9.999kW
HH data reflects actual time of use
Mobile meter via CMS Detailed Inventory of SimpleSockets
(incl. location & CMS ID)
Supplier billing on
actual ‘metered’ data
CMS
Control File
PDA calculates Half Hourly kWh
Submitted to energy supplier daily
Local Authority
owns/maintains
SimpleSockets
Energy
Supplier
ubitricity
maintains
inventory of
SmartCables
SSE Networks has agreed to a
trial within the LB of Hounslow
Ubitricity have connection
agreement with SSEN
Half Hourly unmetered MPAN
created by SSE Networks
Ubitricity are the customer of the
MPAN with SSE as Supplier
Nine SimpleSockets were installed
in Jul/Aug 2016
Energy accounted for through
unmetered arrangements
Trial – LB of Hounslow
Chiswick
Trial consumption data
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1.0
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kW
h
Time Periods (GMT)
3 Aug 2016
4 Aug 2016
5 Aug 2016
6 Aug 2016
7 Aug 2016
8 Aug 2016
9 Aug 2016
10 Aug 2016
Summary
Stakeholder engagement
Next steps
Stakeholder engagement
Regulatory Delivery (incorporating National
Measurement and Regulation Office)
Ofgem
Office of Low Energy Vehicles (OLEV)
ELEXON
Distribution Network Operators
London Lighting Engineers Group (LoLEG)
Discussion with most stakeholders has included technical
assurance of hardware which is not relevant to BSC
Summary
The Unmetered Supplies Regulations
Allow unmetered connections where Supplier, Distributor and
Customer agree
Balancing and Settlement Code (BSC)
Requires consumption to be measured/settled
CMS approach utilises MID approved quarter hour meter
Total energy consumption and energy profile are captured
through the CMS approach
No changes to the BSC or subsidiary documents are required
Next Steps
Ubitricity system to be approved as a CMS
Ongoing trials within Distribution area
