Standards Development

Scope

This PAS specifies the following aspects of a system for the delivery of certain demand side response (DSR) services for domestic and small business premises:
a)     on-premises and cloud-based system architectures, principally comprising an energy smart appliance (ESA), that generates “flexibility offers” (comprising forecast power profiles), a customer energy manager (CEM) and a DSR service provider (DSRSP);
b)     minimum requirements and specification of the information model and application layer of an interoperable interface between the CEM and DSRSP, including cyber-security requirements (“Interface A”);
c)     minimum high-level information model and cyber-security requirements of the interface between the CEM and ESA (“Interface B”);
d)     functional and cyber-security related requirements for the ESA and CEM, which enable the performance of the DSR-based activities specified in this PAS; and
e)     sequence of DSR-based activities including consumer registration, commissioning (device authentication, registration and provisioning/initialization), creation of DSR offers, creation of power constraints by the DSRSP, offer selection, offer cancellation and device de-commissioning.
This PAS specifies the minimum requirements to perform the following DSR-based activities:
f)     compatibility with smart meter technologies in general and specifically with the GB smart metering system;
g)     compatibility with DSR services requested by TSO/DSOs (transmission and distribution network level, including grid frequency sensitive) and enacted via DSRSPs;
h)     compatibility with DSR services using variable electricity tariffs controlled by suppliers/utilities;
i)      electrical appliances that are used in domestic or small business settings[1]), including:
1)    cold appliances;
2)    wet appliances;
3)    HVAC appliances;
4)    smart EV chargepoints; and
5)    battery storage.
This PAS does not cover:
•     the operational and functional aspects of the DSRSP (except for recommendations and examples used to provide context for the system described here);
•     the deployment and functional configuration of the wider DSR environment;
•    standards implied by existing relevant overarching regulation, e.g. the general safety or other aspects of the non-smart functionality of an ESA;
•    contracting, payment services or general consumer protections; and
•    demand side response services where a DSRSP generates and sets power profiles (e.g. some electricity tariffs where devices are directly controlled by energy suppliers generating and setting power profiles based on a combination of consumer preferences/ wholesale price signal and/or DSR services requested by TSO/DSOs.)

This PAS is intended to be used by manufacturers of ESAs and CEMs.

NOTE 1 Other audiences that might have an interest in this PAS are maintainers of ESAs, manufacturers and maintainers of interfacing products, software developers and service providers.
NOTE 2 The specified characteristics of an ESA are complementary with the DSR environment in which it operates, which are described in PAS 1879, as the characteristics enable the ESA to perform DSR-based activities.