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SOLUTIONS FOR UTILITIES AND TRANSMISSION PLANNERS

Study Interconnection with ISO-Grade Confidence

Felix gives utility and transmission-planning teams ISO-accurate study automation, so you can clear queues faster, stand behind every upgrade assignment, and free your engineers from manual spreadsheet work.

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1 + GW
of projects modeled
> 1 %
accuracy against ISO studies
1 +
transmission teams served
1 +
major U.S. markets covered
Utility and transmission-planning teams are under real pressure. Queues are longer than ever, large-load requests keep arriving faster than they can be studied, and every upgrade assignment has to hold up to questions from developers and regulators. Yet a lot of the work still runs on manual spreadsheets and one-off consultant studies that are slow to produce and hard to defend. Felix automates ISO-aligned injection and deliverability studies. You can study more requests, keep your results consistent, and explain every one.

What You Need to Stay Ahead

1. Clear your queue faster.

Run study-grade injection and deliverability analysis across many points of interconnection at once instead of one slow case at a time, so your team keeps up with growing generation and large-load queues.

2. Stand behind every upgrade assignment.

Produce clear, ISO-aligned results that show exactly which constraints and upgrades a project triggers, so your determinations hold up to developer questions and regulatory review.

3. Free your engineers from spreadsheets.

Felix handles the repetitive modeling and processing, so your planners spend their time on judgment and strategy instead of building cases and reconciling spreadsheets by hand.

4. Model the grid as it will be.

Test retirements, queue changes, and planned upgrades to understand future system conditions before anything is built, and keep your long-term plans grounded in how the network really behaves.

Solutions for Utility and Planning Workflows

us

Headroom Capacity

A consistent, region-wide view of available substation capacity and upgrade-cost exposure, refreshed with each model release. It gives planning and interconnection teams one shared reference.

Local Studies Tool

Re-run the full ISO study under your own queue, retirement, and upgrade assumptions, then compare scenarios side by side to pressure-test the outcome.

1

ISO-Aligned Methodology

Felix replicates ERIS and NRIS studies exactly, rather than approximating with FCITC, using the same engines as the ISOs and utilities, so your internal results line up with the official ones.

Frequently Asked Questions

Still have questions?

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How is Felix different from the planning tools we already have?
Felix wraps the engines you already trust, TARA and PSS®E, in automation that runs many points of interconnection and scenarios at once and replicates the full ISO injection study. It is built by former ISO and utility planners, so the results match how official studies are actually run.
Will the results match our official ISO studies?
That is the goal. Felix replicates ERIS and NRIS methodology rather than approximating it, and checks against the latest power flow models for each market, reaching better than 97% accuracy against ISO study results.
Can Felix handle large-load and data-center study requests?
Yes. Felix models large-load withdrawal scenarios and the constraints they trigger, including the effect of competing loads nearby, which helps your team work through a surge of requests quickly and consistently.
Which markets and methodologies do you support?
The major U.S. markets, with methodology consistent with SPP, PJM, MISO, ERCOT, WECC, Duke, TVA, and Southern Company. Get in touch and we will confirm coverage for your footprint.
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Ready to study more in less time, with confidence?