AECL + RTAC Running Controls on Multiple POIs

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Dan Sweeney's summary from meeting wit Attila, kyle, Pete, abd Keith:

Here is the link to the workbook for Jarrett that Keith worked with Attila to quote a single on site SCADA and controller for a multiple POI site.

https://www.dropbox.com/scl/fi/py5v70yyn14y3r52wntof/Project-Design-Workbook-Torch-Jarrett-Fall-Line-19Dec2025.xlsm?rlkey=5nzohp65t6n61lytsom4q6mui&dl=0

In general, Engineering believes we can use this technique to reduce costs on a multiple POI site if:

• A 3555 or 3560 RTAC is specified
• Total POI capacity is below 50MVA
• Total number of control points doesn’t exceed the controller’s max guideline with additional headroom for multiple control loops running (50%?). This is limited to 100 devices (including relays, meters, etc) or 100,000 tags.
• Stem makes is very clear in the proposals that the site cannot share ownership now or in the future
• Should have a special review with engineering
• Unknown the effects of more than 4 separate sites above 10MW/each.

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Article Number: 2187
Author: Tue, Jan 6, 2026
Last Updated: Tue, Jan 6, 2026
Author: Kyle Manhart

Online URL: https://kb.alsoenergy.com/article.php?id=2187