Does anyone have experience using TREAT? Is it an effective approach to dealing with multi-family units?

Tags: Energy, Multi-family, TREAT, audit, audits, software

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The city of Seattle uses TREAT in its WAP program, and they are advertising for an auditor. I found it on the web and they offer a 30-day free usage package. I was hoping to hear from folks who may have used it or know of its ins-and-outs. I suspect it takes data in from on-site assessment and then projects savings based on local weather data, cost of energy, cost of upgrades, ROI etc. I hope to hear from an experienced user about how it might compare to other software programs, how accurate it is, what troubles you may have encountered and how well it works. Thank you in advance for your reflections.

I used TREAT extensively for single-family residential for 10 years.  I can't comment on its multi-family capabilities, but I imagine it's similar.

TREAT is not intuitive.  Personally I like a graphical interface, but TREAT requires you to keep all the surfaces straight in your head, as well as what they're adjacent to.  It can be maddening to run the Model Inspector and have it tell you what you did wrong, but not where.

I believe it derives its accuracy based on the user's inputs.  It's not inherently accurate.  I made models say what I needed them to say all the time.  Truing up the model to actual energy use will give you at least a "fair" degree of accuracy, and I felt I got "good" models once they were trued up.  My best tip for truing up a model: choose a different weather station.  I'd get usage for a project, make a model, feel decent about all the surfaces, run the Inspector, see how far off I was in terms of actual usage, and then start choosing different weather stations until I got where I needed to be.

But generally I find TREAT to be a PITA.  That doesn't change the fact that sometimes you just have to use it.  I did once bang out 11 models in an hour, but those were obviously not very good models LOL.

I do like TREAT for helping to size heating equipment.  One of the reports it can run gives you something akin to a Manual J.  Again, I was doing single-family, and not any room-by-room stuff.

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