Electricity meters

Electricity sub-metering and power monitoring hardware for every feeder

Electricity sub-metering places meters below the main utility meter to measure each tenant, floor, feeder or major load. Aqueduct reads pulse meters, CT clamp metering, Modbus meters through LoRaWAN bridges and camera reads of existing meters, then reports kWh, demand, power factor and power quality on a live electrical single line.

Powered by aQ EnergySmart, built on aQ Core
Circuit breakers in a distribution board
Energy balance · active power
412Grid+146Solar=338HVAC+99Light+16Loss
Power factor 0.96Carbon today 1.9 t
Demo data
Peak demand today
612 kW
Contracted 650 kWChillers sequenced
Demo data

Know how much, who used it, and how well the electrical system is running.

Feeder sub-metering

Every feeder, floor and tenant measured below the main

  • Main first

    The main incomer is metered, then sub-meters explain where the total goes.

  • Tenant billing

    Measured use replaces square-foot allocation, so each tenant pays for the electricity they actually used.

  • High use flagged

    Unusual consumption on a feeder points to inefficient equipment or out-of-hours running.

Substation lit at night
Energy balance · active power
412Grid+146Solar=338HVAC+99Light+16Loss
Power factor 0.96Carbon today 1.9 t
Demo data
Power quality

Power factor, imbalance and demand on a live single line

  • Power triangle

    Real, reactive and apparent power are shown together, with power factor per feeder.

  • Imbalance caught

    Voltage and current imbalance across phases are tracked as they develop, before they stress equipment.

  • Peak demand

    Demand is tracked against the peak, so load sequencing can keep it under the limit.

Electrical cabinet with tagged breakers
Peak demand today
612 kW
Contracted 650 kWChillers sequenced
Demo data
Any meter

Pulse, CT clamp, Modbus or a camera on the meter face

  • Pulse counters

    Existing meters with a pulse output connect through a LoRaWAN pulse counter, with no meter replacement.

  • Modbus bridges

    Modbus meters report to the cloud through a Modbus-to-LoRaWAN bridge that sends readings securely.

  • Camera reads

    Meters with no output are read by camera and converted to kWh and kW.

Testing wiring in a control panel
Bill validation · September
Supplier billed184.2 MWh
Metered176.9 MWh
Difference7.3 MWh
Demo data
Old way vs the Aqueduct way

Electricity metering, before and after Aqueduct

The old way
  • One utility meter and a monthly bill explain nothing.
  • Tenants are billed by square foot, not by use.
  • Power factor penalties show up on the bill unexplained.
  • Old meters are read by hand once a month.
  • Peak demand charges arrive after the peak has passed.
The Aqueduct way
  • Sub-meters show which feeder, floor or tenant used it.
  • Tenant bills come from measured sub-meter data.
  • Power factor is shown per feeder on the live single line.
  • Pulse counters, bridges and cameras bring old meters online.
  • Demand is tracked live so loads can be sequenced in time.
What they measure

Electricity meter types and data points

Four ways to bring electricity data into Aqueduct.

Device typeData points
Electrical meter, pulse outputPulse counts through a LoRaWAN pulse counter, converted in the cloud to cumulative kWh using the meter's pulse constant
Camera meter reading an existing meterAn image of the meter face is read with computer vision in the cloud, giving cumulative kWh and demand in kW from the change between images
CT clamp meteringThe conductor passes through the current transformer. Provides metering, sub-metering and power monitoring data
Modbus meterMeter data collected by a Modbus-to-LoRaWAN bridge and sent securely to the cloud
Related

Power monitoring measurements

Power monitoring includes all metering data plus a view of electrical performance and quality.

Energy (kWh)Real power (kW)Reactive power (kVAR)Apparent power (kVA)Demand and peak demandVoltageCurrentFrequencyPower factorPhase anglePower qualityVoltage imbalanceCurrent imbalanceMin, max and average over time

Metering, sub-metering and monitoring

LayerAnswers
MeteringHow much energy the building or system uses
Sub-meteringWho or what is using it: tenants, floors, feeders, equipment
Power monitoringHow efficiently and reliably the electrical system is running
Breakers and wiring in a panel
What we believe

Metering tells you how much, sub-metering tells you who, monitoring tells you how well.

Talk to our team

Features and use cases this hardware powers

Tenant sub-metering and billing

Bill tenants on measured use, with shared and dedicated meters.

Learn more

Peak demand management

See when demand peaks and sequence loads to stay under it.

Learn more

Load disaggregation

Split the main into HVAC, lighting, plugs and services.

Learn more

Weather-normalized baselining

Expected use from history plus degree days, so savings are real.

Learn more
Related

Protocols it speaks

An electricity meter or CT clamp monitor, chosen per site, that speaks these protocols.

Modbus, pulse output and LoRaWAN
Hardware we work with

Device agnostic, with leading manufacturers.

Exact make and model are selected per site. These are some of the manufacturers and standards Aqueduct works with.

milesight
multitech
synetica
elsys
lora
bacnet
Trusted at scale
Read the case studies
Deployed275+

sites in 21 countries run on Aqueduct.

Healthcare22 hospitals

and 9 clinics in one of India’s top hospital chains.

AirportsTop 25

US airport running water intelligence on Aqueduct.

Real estate20M+ sq ft

of commercial real estate under Aqueduct.

Manufacturing300 acres

FMCG manufacturing campus.

Food and dairyMajor dairy

operations run on Aqueduct.

Questions

Common questions

Electricity sub-metering installs meters downstream of the main utility meter to measure individual tenants, floors, feeders or equipment. Aqueduct reads those meters so consumption can be attributed, billed and compared against a baseline.

Metering measures how much energy is used. Power monitoring adds how the electrical system performs: real, reactive and apparent power, voltage, current, frequency, power factor, imbalance and power quality.

Yes. Pulse output meters connect through a LoRaWAN pulse counter, Modbus meters through a Modbus-to-LoRaWAN bridge, and meters with no output can be read by a camera.

A current transformer clamps around a conductor and senses the magnetic field from the current. CT clamp metering gives metering, sub-metering and power monitoring data without breaking the circuit.

A low power factor means more current is needed for the same useful work, which raises losses and can bring utility penalties. Aqueduct shows power factor per feeder so correction can be targeted.

Yes. Aqueduct Billing Management bills tenants from sub-meter data, handles shared and dedicated meters, and flags bills that fall outside a tenant's usual range.

Aqueduct is device agnostic. Meters are chosen per site from the hardware we work with, based on panel layout, required measurements and protocol, and installed through partners.

See Aqueduct on your own facility.

Bring a site, a utility bill or a question. We will show you where the loss is.