Last Update: 03/26/2021
Below, affected ISO customers can learn more about changes to systems or procedures related to the Update EES Technical Architecture Project. This project is one of several that ISO New England has undertaken, in collaboration with stakeholders, for the continued development of the region’s wholesale electricity markets.
See Participant Readiness Project Outlook for more detail on specifically affected customers and systems for this and other major projects.
Implemented: October 23, 2019
The existing EES software was replaced with a new application for customers to submit external transactions and assign subaccounts in response to customer survey feedback and the availability of newer technology. The EES system relied on Java applet architecture, which was replaced to improve system performance and address cybersecurity vulnerabilities. The new application was named the New England External Transaction Tool (NEXTT), and it provides many benefits. The NEXTT application:
Affected market participants were required to take specific steps or adapt to changes in ISO Systems, as described below and should be mindful of the following time-bound items, some of which may require customers to take specific steps or adapt to changes in ISO systems both before and after the project implementation date.
Please consider subscribing to Participant Readiness, Market Notices, Information Technology (IT) Notices, and MIS Report Issues to receive notices posted to the ISO calendar for future projects.
| TIMING OR DEADLINE | SYSTEM | ACTION OR EVENT |
|---|---|---|
| August 1, 2019 | NEXTT Sandbox |
|
| October 23, 2019 |
NEXTT |
|
The ISO conducted online training and provided various training videos for affected customers to learn about changes and ask questions in advance of project implementation. Please consider subscribing to ISO Training to receive notices posted to the ISO calendar for this project.
| DATE | EVENT AND SUPPORTING MATERIALS |
|---|---|
| October 23, 2019 |
NEXTT task-specific training videos |
|
June 5, 2019 |
New England External Transaction Tool Web Service Changes Webinar - Overview of changing business rules and redesigned web services technical discussion |
|
July 30, 2019 |
New England External Transaction Tool Webinar - Overview of the NEXTT project enhancements and user interface demonstration |
|
Quarterly beginning Q2 2019 |
Quarterly Settlements Issues Forum (QSIF) |
|
Various |
See Participant Training Opportunities on the Divisional Accounting Project page for presentations and recordings related to the use of subaccounts and related settlement presentations |
Please also see the following frequently asked questions (FAQs):
Market participants affected by the project were provided the following documents for specific instructions on completing related tasks or processes and helpful answers to frequently asked questions.
| DOCUMENT | NOTES (if necessary) |
|---|---|
| NEXTT changes effective March 26, 2021 | Summary of changes made to notify participants when MW values are modified during the day after checkout process, the XML output changed to 3 decimal places, filtering abilities were updated on the NEXTT hourly details display. |
|
MIS report changes |
For companies that intend to assign external transactions to subaccounts, see Technical Documentation on the Divisional Accounting Project page for the related revised MIS reports, descriptions, templates, and sample files. The most recent version of each MIS report can be found on the MIS Report Descriptions, Template and Samples web page. |
|
Resource for market participants currently using EES to understand the changes to business rules to be implemented under the project |
|
|
Technical guide describing the NEXTT data exchange formats and requirements |
|
|
Web Services API Documentation (XSD) used for external transactions |
|
|
Reference and task information documentation related to the NEXTT application |
|
|
NEXTT Task-Specific Training Videos |
Short videos targeted to specific tasks that user will perform in the NEXTT user interface |
|
Customer and Asset Management System (CAMS) User Guide for Company and Affiliate Maintenance |
This guide includes detailed information on how to set up subaccounts and enable divisional accounting reporting in CAMS. |
| DOCUMENT | NOTES (if necessary) |
|---|---|
|
Operating Procedure No. 9 (OP 9), Scheduling and Dispatch of External Transactions |
|
|
OP 9 Appendix B, Scheduling Reductions and Curtailments of Real-time External Transactions Under Standard Market Design |
|
|
Manual M-11, Market Operations |
|
|
Manual M-20, Forward Capacity Market (FCM) |
|
|
Manual M-28, Market Rule 1 Accounting |
|
