Rem rate modeling software

The median is the number that half of the data are below and half above. As you can see, both the median and the mean are pretty much right on top of the perfect-fit line. The other thing you can see in this graph is a representation of how much scatter there is in the data. This way of showing the data de-emphasizes the outliers that kind of grab your attention in the first graph. The uncertainties here are all random ones.

Of course, modeling older homes and heating, water heating, lights, and appliance loads is a different matter, and the divergence between modeled and actual energy consumption may be quite different. Kudos to Michael Blasnik and Advanced Energy for providing the HERS rating community with such a great analysis and for giving us confidence in the main analysis tool that many of us use, at least in the realm to which it applies. We have one starting on 8 August.

Data and curve Finally! Data and curve-fitting. Seriously, though, I enjoyed this article, Allison, and will make a study of the Houston paper. John P. Maybe I can get some in with the triple integration article for you. There are already plenty of options for energy modeling out there now. When I model a retrofit and When I model a retrofit and downsize the ac unit and put the ducts in the thermal boundary, my experience with rem is that it way undershoots the actual savings.

So then do I use it and tell the homeowner to ignore the projection because well really do a lot better than what it says? Too much information while trying to sell a retrofit. I stopped using Rem for projecting cooling savings just for this reason. Beyond that use the Man JDS to calculate and design the home and project energy costs of comfort. EnergyPro V8. Micropas v7. Phone: Email contact: ken enercomp. A Homes certified with this DOE approved software version must have a building permit date before this expiration date.

Note that there is also a date restriction for the retroactive application i. Also note that 45L certifications must also adhere to all other IRS requirements including field verification provisions. B If future extensions of 45L are enacted and alter the energy savings requirements or other significant provisions of 45L certification, then this may trigger software previously listed by DOE to be phased out and no longer eligible for use in 45L certifications which occur after the extension.

The company name, program contact and corresponding email address, mailing address, telephone number, and website address of the software developer. The name, version number, or other identifier of the software program as it will appear on the list, and its release date. Access to the software program, made available to DOE by means of either a link to a downloadable copy of the software or online access instructions and credentials.

This information should be emailed to DOE at the email address noted below. A copy of the software program must also be provided to the IRS on a zip drive at the mailing address provided below.