ERP Reference Desk

Why it matters

DER and storage models must translate physical capability into market registration, offers, dispatch, and settlement.

Confirmed design

ERP's DER participation model is intended to enable wholesale-market access; it is not a procurement mechanism.
Sources: IESO Response to Feedback
Predecessor work identified participation requirements and model misalignments for enabling resources.
Sources: EPOR-E Report: IESO Participation Requirements, and Misalignments with Models of Participation

Implementation status and limitations

Being refined through ERP project-specific design.

The EPOR-E report is historical lineage rather than current ERP authority.
Sources: EPOR-E Report: IESO Participation Requirements, and Misalignments with Models of Participation

Open questions

Which participation requirements will differ by resource and aggregation model?

Build a handoff from this dossier

Build a source-bounded prompt locally. Nothing is sent until you choose what to do with it.

Question or outcomeAnalysis depth

Selected evidenceIESO Response to FeedbackEPOR-E Report: IESO Participation Requirements, and Misalignments with Models of ParticipationEnabling Resources Program - Framework and Modules

Generated handoff

# ERP Phase 1 evidence handoff

## Outcome
Explain the selected ERP material and identify the implications for Phase 1 work.

## Selected evidence
- [2026-06-09-response-ieso-response-to-feedback-2879b427] IESO Response to Feedback — IESO; 2026-06-09; authority: ieso-response; review: reviewed; https://www.ieso.ca/-/media/Files/IESO/Document-Library/engage/erp/ERP-DER-20260609-IESO-Response-to-Feedback.pdf
- [2021-01-20-supporting-document-epor-e-report-ieso-participation-requirements-an-265b81c5] EPOR-E Report: IESO Participation Requirements, and Misalignments with Models of Participation — IESO; 2021-01-20; authority: historical; review: unreviewed; https://www.ieso.ca/-/media/Files/IESO/Document-Library/engage/epor/epore-20210120-epor-report.pdf
- [2024-11-20-design-memo-enabling-resources-program-framework-and-modules-6a283195] Enabling Resources Program - Framework and Modules — IESO; 2024-11-20; authority: primary-supporting; review: reviewed; https://www.ieso.ca/-/media/Files/IESO/Document-Library/engage/erp/erp-20241120-design-memo.pdf

Selected concept dossiers:
- [wholesale-participation] Wholesale Participation: Participation by eligible resources in IESO-administered wholesale markets.

## Authority rules
- Treat current IESO-authored design memos as controlling program design unless a later Market Rule, Market Manual, or IESO publication supersedes them.
- Do not claim implementation unless a Market Rule, Market Manual, or other official implementation source proves it.
- Keep stakeholder submissions attributed to their authors; attribute stakeholder positions and do not present them as IESO decisions.
- Use superseded and historical sources only for lineage. Label what changed.
- Treat recordings as catalog-only unless a reviewed transcript is explicitly supplied.
- If two sources conflict, prefer the later higher-authority source and describe the conflict.

## Citations
Cite every substantive claim with document title, publication date, page when available, document ID, and canonical URL. Never invent a page number.

## Known gaps
- 2021-01-20-supporting-document-epor-e-report-ieso-participation-requirements-an-265b81c5: unreviewed; historical. Verify before relying on content-specific claims.

## Requested depth
Give a practical, structured analysis suitable for daily program work. Distinguish confirmed design, history, stakeholder feedback, and open questions.

## Answer format
1. Direct answer
2. Confirmed ERP design
3. Historical or stakeholder context
4. Phase 1 implications
5. Open questions and evidence gaps
6. Source list

Work only from the selected evidence. If the evidence is insufficient, say exactly what is missing.

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