Power & Utilities
Producing more consistent rate cases, tariff filings, and IR responses
Ultimarii is built for the full scope of utility regulatory work, from rate cases and tariff filings to IR responses and hearing preparation.
FERC · NYPSC · OEB · AUC · CPUC · NYISO/ISO-NE and more
Grounded in the utility record
Every answer cites the document and paragraph it came from.
How Ultimarii helps
Support every stage of a utility regulatory proceeding
IR Preparation
Review applications, supporting evidence, and prior proceedings to identify issues, develop questions, and prepare targeted Information Requests.
IR Response Drafting
Draft Information Request responses using proceeding-specific context, regulatory requirements, and prior filings to support consistent, well-grounded submissions.
Rate Case Support
Support rate case preparation with project-specific context, regulatory requirements, comparable filings, and prior commission decisions.
Precedent Research
Research prior rate cases, tariff filings, and regulatory decisions to understand how similar issues have been addressed across proceedings.
Witness Preparation
Prepare witnesses using filings, expert evidence, Information Requests, and hearing materials to support testimony and hearing readiness.
Regulatory Monitoring
Monitor regulatory decisions, filings, and policy developments to identify changes, emerging trends, and issues that may affect future proceedings.
In practice
See how a utility uses Ultimarii in practice

Scaling In-House Legal Capacity for Renewable Asset Portfolios
Canadian renewable asset operator · Contract review
Read the case studyGet started
See what Ultimarii looks like for your team
We’ll show you the platform on your own regulatory context, not a generic walkthrough.

