What we model for
LEED energy performance
Baseline and proposed models for the Minimum Energy Performance prerequisite and Optimize Energy Performance credit, including reviewer responses.
ASHRAE 90.1 Appendix GEnergy code compliance
Performance path compliance when a prescriptive path does not fit the design.
ASHRAE 90.1 and state energy codesDesign option studies
Side-by-side comparisons of HVAC systems, glazing, envelope, and controls strategies early enough to change the design.
Annual energy and cost by end useWhat is included
Scope is set in the proposal and fits the project. These are the deliverables we typically provide.
- Modeling inputs and assumptions summary
- Baseline and proposed building models
- Energy and cost by end use
- LEED energy documentation and narrative
- Option comparison memo
- Response to LEED review comments
- Coordination with the design team
- Model files on request
How a modeling project runs
Kickoff and inputs
Drawings, schedules, systems, and utility rates.
Baseline model
Built to the governing standard.
Proposed model
The design as drawn.
Results and options
Compare, adjust, and rerun.
Documentation
Submittal-ready reports and reviewer responses.
Standards and references we work to
- ASHRAE Standard 90.1 Appendix G
- ASHRAE Standard 209
- LEED v4 and v4.1
- IES Virtual Environment
- ASHRAE BEMP
Questions about energy modeling
When should energy modeling start?
For design guidance, at schematic design, when system and envelope choices are still open. For LEED documentation alone, design development drawings are enough to start.
What software do you use?
IES Virtual Environment for whole-building simulation, which is accepted for LEED and Appendix G compliance.
Do you respond to LEED reviewer comments?
Yes. Responding to review comments on the energy model is part of our LEED modeling scope.
Can you model an existing building?
Yes. Calibrated models of existing buildings support Level 3 audits and measure savings estimates.
Need an energy model?
Send the drawings and tell us whether this is for LEED, code compliance, or design decisions. We reply within one business day.