AI-Assisted Energy Analysis · PE Review Required for IRS Certification

Pre-model your 179D deduction

Enter your envelope, HVAC, lighting, and DHW specs to see an ASHRAE 90.1 baseline comparison — so you know whether to invest in a full PE-certified model.

Intake progress0%
1

Building basics

sq ft
2

Building envelope

Whole-wall, roof, and fenestration performance

h·ft²·°F/Btu
h·ft²·°F/Btu
Btu/h·ft²·°F
0–1
3

HVAC system

Equipment type and efficiency ratings

ASHRAE min: 14
ASHRAE min: 80%
%
ASHRAE min: 3.2
4

Lighting

Interior lighting power density

ASHRAE max: 0.82 W/sqft
W/sqft
5

Domestic hot water

Service water heating system

Energy Factor or COP

AI-Assisted Energy Analysis · PE Review Required for IRS Certification