BEIS Consultation on Proportional Load Control and associated SMETS drafting

2 August 2019

Today the Department for the Business, Energy and Industrial Strategy (BEIS) published a consultation on the government’s proposal to add proportional load control functionality to the Smart Metering System. This relatively small and incremental change will build on existing Auxiliary Load Control Switch (ALCS) and Home Area Network (HAN) Connected Auxiliary Load Control Switch (HCALCS) functionality to enable more precision and flexibility in the control of load on behalf of consumers than is currently possible. This is intended for use in effective management of significant loads such as electric heating systems and the smart charging of batteries and electric vehicles. The consultation includes proposed drafting changes to the SMETS2 Technical Specification to deliver this outcome.

Broader context on the government’s proposals on electric vehicle smart charging are provided in a separate recently published consultation. BEIS have also provided innovation funding to demonstrate the existing load control functionality of the smart metering system, in particular for electric vehicle smart charging. Further detail on these demonstration projects can be found here.


How can I respond to this consultation?

  • The Auxiliary Proportional Controller Consultation and associated annexes can be found here.
  • Annex D ‘Proposed SMETS2 drafting’ can be found here.

Please send your responses or any enquiries to


Smart Metering Implementation Programme – Delivery
Department for Business, Energy & Industrial Strategy,
2nd floor,
1 Victoria Street,

The deadline for responses to this consultation is 5pm on Friday 20 September 2019.