I have never broken natatoriums out of projects, but I can understand your rationale for wanting to given their impact on the pEUI. This is one of those instances where the 2030 baseline dataset doesn't fit well. I'm not aware of anyone that benchmarks natatoriums. If you have an energy model with an ASHRAE 90.1 based baseline, I would recommend using that as a custom baseline number as it will better reflect the energy use of the natatorium in the baseline. For a recreation building, a natatorium may make a larger impact on the overall pEUI than a small natatorium on a high rise hotel of multi-family project would, but i wouldn't expect it to be the same level of impact that having a data center in the building would.
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Cory Duggin
TLC Engineering Solutions, Inc.
Orlando FL
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Original Message:
Sent: 03-19-2026 03:32 PM
From: Matthew Krieger, AIA
Subject: How to handle indoor swimming pools for 2030 reporting?
How have project teams been logging pEUI for public recreation buildings (or other building types) that have natatoriums/indoor swimming pools? The DDx baseline is based of the listed space types from the drop down and while there are 4 options for Public Assembly and 'Recreation' is listed, I'm fairly certain that doesn't typically account for natatoriums that have a higher EUI. And what if you have an indoor swimming pool in a hotel or multi-family project? Should that portion of the building program be itemized out as a separate use and which type? Are teams using a custom baseline, and if so, which source? Can anyone advise? Thanks in advance!
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Matthew Krieger AIA
Neumann Monson Inc.
Iowa City IA
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