SECMP0046 Allow DNOs to control Electric Vehicle chargers connected to Smart Meter infrastructure
Proposer
Richard Hartshorn
Lead Analyst
SEC Change
Date raised
21/02/2018
Stage
Withdrawn
Implementation date
Unknown
Latest update
The Proposer decided to withdraw this modification on 21 August 2023. Work outside the modification process has delivered the necessary assurances. The ENA’s Open Networks programme has ultimately proposed products which can achieve the last resort objectives, and DNOs also have existing methods which can readily be deployed alongside them to provide the layer of additional security the working group were seeking.
What is the issue?
This modification proposes changes to the SEC to enable electricity Distribution Network Operators to use Smart Meter infrastructure to modify Electric Vehicle charging load within a household. This is in order to avoid the risk of overloading low voltage circuits from secondary substations to properties, and therefore avoid power outages.
What is the solution?
The solution discussed at the Working Groups is to use Han Connected Auxiliary Load Control Switches (HCALCS). The HCALCS will be connected to domestic Electric Vehicle chargers, and this modification seeks to allow Electricity Distributors to send the relevant Service Request via the DCC to alter the load on a domestic Electric Vehicle charger. This would be in the event that the Electricity Distributor detects a potential risk of overloading on a low voltage network.
Modification documents
SECMP0046 November 2020 SEC DCUSA Joint Working Group summary
This is the April 2024 SEC Modifications Working Group meeting, where we will be discussing: MP085B ‘Synchronisation of Smart Meter voltage measurement periods (meters currently installed)’ MP244 ‘Device Alerts
This is the April 2024 SEC Issues Group meeting, where we discussed: PPM continuity plan Please see the meeting summary here: SEC Issues Group Meeting Summary - April 2024 (CLEAR)
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