Code Compliance
Modern energy codes no longer stop at insulation and equipment efficiency — they require permanently installed submetering on most new and substantially renovated commercial buildings. Emergent Energy designs, installs, and commissions the metering systems that satisfy IECC C405.12 and ASHRAE 90.1 §8.4.3 / §10.4.7 — and pipes the data into a platform owners actually use.
What the codes actually say
Both the International Energy Conservation Code (IECC) and ASHRAE Standard 90.1 now carry explicit, enforceable submetering language. They overlap in intent — measure energy use by category, log it at short intervals, and keep the data available to the owner — but the thresholds and reporting categories differ.
Requires new commercial buildings ≥25,000 sq ft to submeter major end-use categories (HVAC, lighting, receptacle, process, service water heating, and on-site renewables) with data logged at least hourly and retained for 36 months.
Requires permanently installed measurement devices on each new building ≥25,000 sq ft to record consumption by category: HVAC, interior lighting, exterior lighting, receptacle, and process loads — with data accessible to the owner.
Adds submetering of large process loads (data centers, kitchens, refrigeration, compressed air) where they exceed defined thresholds, with separate data channels for each.
Energy data must be recorded at intervals not exceeding 15 minutes, stored locally for 36 months, and made available via a documented interface — exactly the architecture EnergyOS delivers out of the box.
End-use categories we meter
Both codes call out specific energy end uses that must be measured separately. Our standard meter schedules cover all of them, scaled to building size and tenant configuration.
Chillers, boilers, cooling towers, pumps, fans, and packaged rooftop units — metered separately from other loads per ASHRAE 90.1 §8.4.3.
Branch-circuit submetering of interior and exterior lighting panels to support IECC C405.12 reporting categories.
Separate measurement of receptacle and process loads — required where 5% or more of total building energy is plug load.
Per-tenant or per-department metering for multi-tenant commercial, retail, and mixed-use buildings.
Submetering of gas-fired heating, process, and DHW equipment to satisfy non-electric end-use reporting.
Energy or BTU metering on domestic hot water systems serving 25,000 sq ft or more of conditioned space.
Compressed air, refrigeration, kitchen, and process equipment broken out as separate end-use categories.
Dedicated meters on EVSE circuits and on-site renewable generation — increasingly called out in 2024 IECC updates.
How we support compliance
We act as the metering specialist on the project team — so the EE and ME of record don't have to become submetering experts and the owner ends up with a system that produces real, usable data, not just a check-box.
We review the project's energy code path (IECC 2018/2021/2024 or ASHRAE 90.1-2016/2019/2022) and translate the submetering requirements into a meter schedule the design team can issue.
We mark up electrical single-lines and mechanical schedules with required meter locations, accuracy classes, and data points — coordinated with the EE and ME of record.
ANSI C12.20 revenue-grade meters for utility-aligned points; wireless Panoramic Power sensors and BTU meters for granular end-use coverage where pulling new CTs would blow the budget.
Licensed installation, point-to-point verification, and Cx documentation that AHJs and LEED reviewers accept as evidence of code compliance.
All measured points stream into EnergyOS with 15-minute (or faster) interval data, 36+ month retention, role-based access, and exportable reports for the building owner.
We deliver the meter list, point map, accuracy certifications, and a sample data export packaged as a single compliance binder for the AHJ, owner, and LEED/ENERGY STAR reviewers.
Where it applies
IECC and ASHRAE 90.1 are adopted — often with state-specific amendments — across most of the US. The same metering infrastructure typically satisfies LEED Advanced Energy Metering, ENERGY STAR Portfolio Manager benchmarking, and local building performance standards in one deployment.
California (Title 24)
Adopts ASHRAE 90.1 submetering with state-specific amendments.
New York / NYStretch
Layers IECC C405.12 with Local Law 97 reporting needs.
Washington State Energy Code
Extends end-use metering thresholds below 25,000 sq ft.
Massachusetts Stretch Code
Requires data accessibility and net-zero reporting alignment.
Pennsylvania (UCC)
Adopts IECC with state amendments; metering required on most new commercial work.
LEED v4 / v4.1 EA Credit
Advanced Energy Metering credit mirrors ASHRAE 90.1 §8.4.3 requirements.
Send us your project scope and we'll return a meter schedule, hardware list, and budgetary estimate aligned to the exact code version your AHJ enforces.