Dynamic Load Management EVSE

Optimize Power Distribution for EV Charging Systems

EV adoption is accelerating demand for electrical infrastructure. DLM enables scalable, reliable EV charging by monitoring demand and adjusting charging loads in real time to maximize panel capacity.

EVs parked at a public charging station, connected to a charger outdoors near trees.

Overview

In Level 2 EV charging applications, installations often oversubscribe electrical panels to increase charger density. Dynamic Load Management is used in these cases to optimize panel capacity, prevent overload, and maximize charger availability. This process requires real-time power monitoring through charger-level and panel-level metering to ensure total load remains within the panel’s capacity limits.

Application

The application requires a main meter to monitor the main or electrical panel and also requires metering on the EV chargers to monitor the individual loads; this can be done using a multi-circuit meter or individual meters. The data from both sets of meters are fed to software that runs real-time analysis to monitor demand and throttle or control loads to ensure compliance with electrical codes and safety limits; this can also be used to manage demand charges and reduce operational costs.

Simplify Dynamic Load Management with Accuenergy

Accuenergy meters provide real-time electrical data required to enable Dynamic Load Management in EV charging installations, supporting both panel-level and charger-level monitoring and meeting key requirements for effective power distribution, including:

Real-time measurements of 1 second or less to support fast load switching.
Revenue-grade accuracy for reliable energy tracking and billing.
Flexible metering options that scale up or down based on application requirements.
Integration-friendly, open-protocol communication such as Modbus TCP/IP, MQTT, API, or HTTP Post.
Fast and simple installation for scalable deployment with minimal oversight or disruption.

Key Design Considerations for Meter Selection

Selecting the right meter configuration depends on system architecture, electrical characteristics, and integration requirements, including:

Circuit Type: Single circuits vs. feeder circuits.
Edge Integration: Edge devices need to tie in mechanical devices, gateways, or other sensors.
Current Rating and Window Size: Alignment with conductor size and load capacity.
Voltage Rating: Compatibility with system voltage levels.

Accuenergy Meter Selection

	Main Service	Main Service High Speed	EV Charger Loads	Main Service Current Sensors	Charger Load Current Sensors
Devices	Acuvim CL AXM-WEB2 AcuPanel 9104X		AcuRev 4100-WEB2	AcuCT Flex Series	AcuCT R Series
Function	Monitor the Main Service for Capacity		Monitor Individual EV Charger Loads	Flexible Current Sensor for Larger Loads	Split-Core Current Sensors for Smaller Loads
Features Highlight	Load Profiling, Alarming, Data Logging	<1s Read + Log, Load Profiling, Alarming, Data Logging	24 Channel Input, Individual Power Calculation + Channel Mapping	Safe and Simple Installation, Wide Current Range, Various Window Size Options	Safe Installation, Press Open Mechanism