
Ryan Meres
Program Director at RESNET overseeing water and energy efficiency rating programs including HERSH2O®.
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Jul 13, 2026
EP154 Every Drop Counts: The Evolution of HERSH2O® (June 2026)
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12:32Bill SpohnHOST
Going back over to Ryan, in the development, you mentioned task groups and working groups, what's the representation of those that come as these standards are revised and developed?

Ryan MeresGUEST
It's a mix of builders like Jacob, who is the chair of SDC 1100, which is the standard development committee that oversees the Standard 850.

Ryan MeresGUEST
But then we have engineers and consultants and HERS raters and code officials, so it's a pretty wide representation.

Ryan MeresGUEST
The initial group that worked on the concept for the water rating index 10 years ago was a very large group.

Ryan MeresGUEST
I think it had about 70 or 75 people on it that really were working together to try to flesh out the entire concept for the standard.

Ryan MeresGUEST
It's a much smaller group now, but yeah, pretty wide representation of really industry experts on water efficiency, and then of course the raters who are out there having to do the inspections.

Ryan MeresGUEST
There's always this discussion about what may be on paper is great, but how does that translate into what the rater is inspecting in the field? So it's always helpful to have that perspective as well because in the end that's what it comes down to is, can this be inspected in the field, and how does it get inspected without adding a significant amount of time to what a rating takes? 'Cause the HERS H2O is really designed to be added to a HERS rating.
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14:11Bill SpohnHOST
The actual data that's collected on site, name off some of the things that are actually being assessed.