Enterprise Energy Intelligence

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Integrate electric, water, BTU, gas, air, and steam data from every site into a single, multi-tenant enterprise dashboard — purpose-built for portfolio-scale energy management.

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Emergent Metering Solutions serves facility managers, MEP engineers, energy consultants, and building owners across commercial real estate, manufacturing, healthcare, education, retail, and government sectors. We provide metering hardware, installation support, communication protocol integration, and energy analytics for single-site and multi-site portfolio deployments. Our team has deep experience with revenue-grade electric meters, ultrasonic water meters, thermal BTU meters, compressed air flow sensors, natural gas meters, and steam vortex meters from leading manufacturers including Accuenergy, Leviton, Panoramic Power, Onicon, Badger Meter, and Tridium.

What is a BTU meter?

A BTU meter measures thermal energy delivered or consumed in a hydronic heating, chilled water, or steam system. It combines a flow meter with paired supply and return temperature sensors to calculate energy in British Thermal Units (BTU) — the standard for billing tenants in chilled water loops, district energy systems, and central plant submetering.

Modbus vs BACnet for submetering — which should I choose?

Modbus (RTU or TCP) is simple, low-cost, and dominant on the meter side; most electric, water, BTU, and gas meters speak it natively. BACnet (MS/TP or IP) is the standard inside building automation systems and is required for integration with most BMS front-ends. A common pattern is Modbus meters polled by a gateway (Tridium JACE, Leviton AcquiSuite, Optergy) that republishes the data as BACnet to the BMS.

Do I need submetering for IECC 2021 compliance?

Yes — IECC 2021 Section C405.12 requires energy submetering in most new commercial buildings over 25,000 sq ft. Each tenant space, each major HVAC system, and each end-use category (lighting, plug loads, process, HVAC) typically needs separate metering with the data accessible to the building owner. Electric, gas, and BTU meters with pulse, Modbus, or BACnet output all qualify when paired with a recording system.

How does NYC Local Law 97 affect building submetering?

Local Law 97 caps greenhouse gas emissions for buildings over 25,000 sq ft starting in 2024, with stricter limits in 2030. Submetering does not satisfy LL97 directly, but it is the only practical way to attribute emissions to tenants, identify reduction opportunities, and document load-shedding for the prescriptive compliance pathway. Most building owners install electric and gas submeters alongside Panoramic Power circuit-level sensors to track progress against their carbon budget.

Ultrasonic vs mechanical water meters — what's the difference?

Mechanical meters (multi-jet, positive-displacement, turbine) use moving parts and are accurate, low-cost, and well-understood, but wear over time and have a minimum flow threshold. Ultrasonic meters use transit-time sound pulses, have no moving parts, maintain accuracy across a wider flow range (down to fractions of a gallon per minute), and last 15+ years without recalibration. Ultrasonic is preferred for submetering, BTU applications, and any installation where access for service is difficult.

What is revenue-grade metering?

Revenue-grade meters meet ANSI C12.20 Class 0.2 or 0.5 accuracy — the same standard utilities use for billing — and are required when submeter readings will be used to bill tenants or sell power back to the grid. Most commercial building submeters (Leviton Series 7000/8000, Panoramic Power PAN-42, Acquisuite-paired CTs) are revenue-grade. Lower-accuracy meters are fine for monitoring and analytics but cannot be used as the basis for charges.