Last Update: November 1, 2023
Below, affected ISO customers can learn more about changes to existing systems or procedures related to the DNE Project. This project was one of several that 91³Ô¹ÏÍø 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.
Project implemented for wind resources, and functionality available for intermittent hydro resources: May 25, 2016.
Project implemented for intermittent hydro resource participation: April 30, 2017.
Deadline for Day-Ahead Market participation for wind and intermittent hydro: May 31, 2019 deadline for operating day June 1, 2019.
Data requirements for solar generator assets required under OP 14 Appendix H effective: July 20, 2021.
Solar day-ahead market participation will be required for solar with a capacity supply obligation (CSO): December 4, 2023.
Solar do not exceed dispatch will be required: December 5, 2023 operating day.
On July 20, 2021, under FERC order ER21-1974-000, OP14 Appendix H became effective for solar generator assets in ISO-NE markets. The following information became a requirement at that time:
The proposal to incorporate solar generator assets into do-not-exceed dispatch was approved at the NEPOOL Participants Committee on September 1, 2022 and filed with FERC on November 30, 2022 under Docket No. ER23-517-000, Revisions to 91³Ô¹ÏÍø Transmission, Markets and Services Tariff to Incorporate Solar Resources into DNE Dispatch Rules. FERC approval of the proposed Tariff revisions was received under Docket No. ER23-517-000 Letter Order Accepting Solar Resources into DNE.
Most modeled solar generator assets will become dispatchable and need to exchange certain data with 91³Ô¹ÏÍø using a directly connected remote terminal unit (RTU) by the requested effective date of December 5, 2023. Additionally, solar with a CSO will be required to offer into the Day-Ahead Energy Market beginning on December 4, 2023.
In previous phases, 91³Ô¹ÏÍø addressed the need for an automated, economic solution for dispatch of wind and intermittent hydro resources. As part of the wind and intermittent hydro phases of the project:
Affected solar market participants are required to take specific steps or adapt to changes in ISO Systems, as described below and should be mindful of additional 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 |
---|---|---|
May 24, 2016 |
RTU |
Wind resources installation of required RTUs. |
May 25, 2016 |
MIS |
MIS report changes go into effect for wind and optional for hydro. See more under Technical Documentation, Rules, and Procedures below. |
April 29, 2017 |
RTU |
Intermittent hydro installation and test of required RTUs. |
April 30, 2017 |
Electronic Dispatch (no RTU) |
Intermittent hydro resources without RTUs must receive and respond to electronic dispatch of desired dispatch points. |
May 31, 2019 |
eMarket |
Wind and intermittent hydro DDGs with a CSO to offer into the Day-Ahead Market for operating day June 1, 2019. |
June 1, 2019 |
RTU |
Participants begin to receive DNE dispatch instructions for wind and intermittent hydro resources. |
July 20, 2021 |
Form Submittal, Web Services, and Telemetry |
Data submittal requirements per OP 14 Appendix H for solar generator assets. |
August 8, 2023 |
SandBox WPF WebServices - WPLP |
Participants test querying their generation forecasts in RPLAN. |
October 27, 2023 |
WPF WebServices - WPLP |
Participants can query their generation forecasts in the production environment. |
December 4, 2023 |
RTU |
Complete solar resources installation of required RTUs. |
December 4, 2023 |
eMarket |
Solar DDGs with a CSO to offer into the day ahead market for operating day December 5, 2023. |
December 5, 2023 |
RTU |
Participants begin to receive DNE dispatch instructions for solar resources. |
The ISO conducted online training and conference call information sessions 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 future projects.
Conference call invitations for this project were sent directly to the designated contacts for wind and intermittent hydro generation assets.
DATE | EVENT AND SUPPORTING MATERIALS |
---|---|
October 15, 2015 |
Project Conference Call #1 with Wind and Intermittent Hydro Participants |
November 30, 2015 |
Project Conference Call #2 with Wind and Intermittent Hydro Participants |
February 22, 2016 |
Project Conference Call #3 with Wind and Intermittent Hydro Participants |
May 3, 2016 |
Intermittent eMarket Training Session for Wind and Intermittent Hydro
|
May 18, 2016 |
Project Conference Call #4 with Wind and Intermittent Hydro Participants
|
June 3, 2016 |
Project Conference Call #5 with Wind and Intermittent Hydro Participants
|
October 30. 2023 |
Knowledge Articles |
November 1, 2023 |
Do Not Exceed (DNE) Dispatch Impacts for Intermittent Resources |
Wind, Intermittent Hydro, and solar 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) |
---|---|
Wind and solar forecast providers and wind and solar plant lead participants can refer to this document to develop their web services interface to the e‑terrarenewableplan WebService application. |
|
Summary of changes made with the implementation of solar generation availability in RPLAN effective as of August 8, 2023. |
|
System Operations Memo to DNE Dispatchable Wind Generators – March 21, 2023 |
Notice to DNE dispatchable wind generator contacts regarding a change to the use of wind high limit (WHL) in DNE dispatch. |
System Operations Memo to DNE Dispatchable Wind Generators – January 23, 2023 |
Notice to DNE dispatchable wind generator contacts regarding data accuracy issues during adverse weather conditions. |
Notice to contacts for solar assets and their related dispatch location contacts regarding solar requirements to become dispatchable. |
|
Wind and Solar Data Exchange Specification, client sample programs, SOAP samples, and WSDL. |
|
Summary of changes made with the implementation of solar generation availability in RPLAN effective as of April 16, 2021. |
|
System Operations Memo to DE Operations and Training contacts – March 10, 2020 |
Reminder notice to wind and hydro resource contacts that the data they provide is critical to reliable and efficient system and market operations |
System Operations Memo to DE Operations and Training contacts – June 21, 2019 |
Economic maximum automatic redeclaration process effective July 1, 2019 for intermittent hydro DNE dispatchable generators |
Summary of changes made under the Do Not Exceed (DNE) Dispatch project for DNE Dispatchable generators offering into the Day-Ahead Energy Market for operating day 6/1/2019. |
|
Economic maximum automatic redeclaration process effective July 1, 2019 for intermittent hydro DNE dispatchable generators |
|
eMarket User Guide version v.7.2, effective – September 30, 2020 |
User Guide version V7.2 reflecting capacity resource definition change. |
Do Not Exceed (DNE) dispatch Wind High Limit (WHL) reporting error impacts and resources available to confirm the correct WHL calculation |
|
Do Not Exceed (DNE) dispatch use of self-reported Wind High Limit (WHL) in the automatic redeclaration calculation of the Economic Maximum (EcoMax) limit beginning November 1, 2016 |
|
Do Not Exceed (DNE) dispatch post-implementation guidance for data submittal and RTU dispatch instructions |
|
Operational considerations and preparations for Do Not Exceed (DNE) dispatch implementation |
|
The following reports will be revised 5/25/2016:
|
|
These documents are the data exchange specification for the e-terrarenewableplan web service application. |
|
The eMarket system is used to submit day-ahead market data submittals. No DNE-specific changes were required. |
DOCUMENT | NOTES (if necessary) |
---|---|
OP 14 Appendix H, Solar Plant Operator Guide |
|
OP 14 Appendix F, Wind Plant Operator Guide |
|
OP 14, Technical Requirements for Generators, Demand Resources, Asset Related Demands, and Alternative Technology Regulation Resources |
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CROP.34013, Do Not Exceed Dispatchable Generation |
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CROP.35005, Dispatch Using RTUC and UDS |
|
CROP.36002, Redeclarations |
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CROP.50005, Capacity Analysis and Morning Report |
|
CROP.36003, Commitment, Decommitment, Self-Scheduling, and Self-Dispatch |
|
CROP.34007, Contingency Analysis |
|
Manual M-11, Market Operations |
|