Early compliance check
At schematic design we tell you whether the design can comply prescriptively or needs the performance path, before the facade is fixed.
Energy code simulation, performance path
When the design doesn't fit the prescriptive code, we model the way through.
Large glazed facades, a tight envelope, systems that need a trade-off: the prescriptive path is often the first thing a design breaks. A performance-path energy model shows the building meets the energy code as a whole, with the documentation plan review asks for.
What we deliver
Early answers for the design team, complete documentation for the filing.
Envelope and glazing trade-offs
We show how much better systems, controls or envelope elsewhere let the design keep the glazing it wants.
Compliance model and report
Baseline and proposed models with the input and output summaries plan review asks for.
Plan review comments
We answer examiner comments on the energy analysis until it is accepted.
One model for code and LEED
Where the editions line up, the same model also documents the LEED energy credit.
LEED consultingCommissioning after permit
The energy code also requires commissioning of the systems you modeled. We deliver that too.
Code-required commissioningRecent changes in our region: New Jersey adopted the 2024 IECC on August 17, 2026, and Pennsylvania has used the 2021 I-codes since January 1, 2026.
How it works
We fit the modeling to your permit schedule.
Schematic design
Compliance check
Prescriptive or performance path, and what the design would need to change.
Design development
Models built
Baseline and proposed building modeled to the applicable path and code edition.
Coordination
Trade-offs agreed
Recommendations to the architect and MEP engineer, rerun until the design complies with a margin.
Filing
Documentation
Compliance report and model summaries for the design professional of record to file.
Plan review
Comments answered
Responses to examiner comments until the energy analysis is accepted.
Who signs what
The design professional of record files. We build the evidence.
Energy code compliance documents are submitted by the registered design professional responsible for the project. We prepare the models and reports behind that submission and stay on the file through plan review.
Energy code simulation questions
Prescriptive or performance path: how do we know?
We run a quick check at schematic design. If the design complies prescriptively, we tell you and you save the modeling fee.
Who signs the compliance documents?
The registered design professional of record. We prepare the energy models and reports they file and answer the examiner's questions on the analysis.
Can the same model be used for LEED?
Often yes, when the LEED version and the code path reference compatible editions of ASHRAE 90.1. We confirm it at the start.
Which codes do you work with?
ASHRAE 90.1 and the IECC, as adopted by the state or city where the project is, including the NYC Energy Conservation Code.
Do you work outside the Northeast?
Yes, anywhere in the US. We model to the code edition adopted where your project is.
Ask for a code compliance proposal
Tell us the project, the jurisdiction and your filing date. We reply within two business days with the path, schedule and a fixed fee.
Prefer to talk? +1 (646) 296-8091 or [email protected]
ASHRAE is a registered trademark of ASHRAE. IECC is a trademark of the International Code Council.