The Electronic Dispatch and Logging (EDL) module interfaces to the National Grid Balancing Mechanism and TERRE for the exchange of information in near-to real-time as stipulated in the Grid Code.
The EDL module manages communication with the National Grid EDL messaging interface that is installed at each station, site, control point or Dunstan Thomas Enterprise Private Cloud (EPC) hosted EDL environment or to the National Grid Wider Access API end points.
This module provides access to the National Grid messaging system, so it allows operators to submit operational dynamic parameters for generation assets to National Grid and to receive dispatch instructions for Bid-Offer Acceptances and Ancillary Services (and the forthcoming TERRE market). This enables operators to respond to instructions to change output levels in real-time.
The EDL module supports the following activities:
Genstar4 provides APIs to automate communication (submissions and instructions) with external systems (e.g. ATOM or a plant control system).
The EDL module supports the user at their Control Centre for accepting National Grid instructions for Balancing and Ancillary Service dispatch, and for creating operational data submissions. EDL can support fully automated operations.
The following functionality is provided:
Genstar4 provides powerful flexibility to enable asset operators and VLPs to automate their operations.
A number of options are provided for the automation of BOA instruction acceptances, namely:
In addition, the process of validation and acceptance when Genstar4 is integrated via APIs with a plant control system also has a number of options:
National Grid provides two mechanisms for communication - either fixed line MPLS circuits or APIs (Wider Access).
The Wider Access APIs may be used if a single site is less than 100MW capacity or a participants’ portfolio is less than 300MW. Above these thresholds fixed EDT and EDL circuits must be installed.
For participants exceeding the Wider Access thresholds, Grid Code requires that each asset has a designated control point, at which National Grid will commission a network line and router, and supply an EDL communication protocol stack (“CTC message client”) for installation on a PC which requires a dedicated network card for the EDL link.
Dunstan Thomas can provide a hosted solution including EDT and EDL circuits which dramatically reduced time to market considerations for participants.
The EDL module manages fully flexible arrangements of BM Units into multiple control-desk configurations, which may be designated as active (controlling) or passive (display only).
Genstar4 also provides full support for dispatching power stations via EDT.
To learn more about power station dispatch in the UK visit the EDL and EDT pages or Contact Dunstan Thomas for a product demonstration of Genstar4.
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