Joodra

JD EMS

ESS grid control · Second-life battery operations

An operating system for ESS built from reused batteries with different makers, histories, and wear.Splits charge and discharge by each battery's condition and cuts off anything past its safe limit.

MOLBuilt · In field validation
Request a demo
JD EMS · Rack control · Discharge
SOH-weighted dispatch → Target tracking → Over-limit module isolated and load rebalancedIllustrative · Values are not live data

01Problem

No playbook for second-life batteries

EMS for new batteries is a mature market.Running a mix of reused batteries with different histories and specs calls for a different approach.

Issue 01

Built for identical batteries

Conventional EMS assumes every battery is the same.That breaks down when aging varies widely.

Issue 02

Weak batteries get overworked

Splitting the load evenly piles stress on the most degraded units.The result is shorter life and higher safety risk.

Issue 03

Safety limits need to be individual

Every battery has its own safe range.One-size-fits-all limits trip too late or too often.

02Process

From condition data to cutoff

Uses JD Plan diagnostics and live BMS data as control inputs.

  1. 01

    Load battery condition

    JD Plan SOH/RUL plus live BMS data

  2. 02

    Plan operations

    SOH-aware charge schedule

  3. 03

    Real-time charge and discharge control

    Target output tracking

  4. 04

    Watch limits and cut off

    Isolate and rebalance

03Features

Key capabilities

  1. 01

    Real-time charge and discharge control

    Set a target output and switch between charging and discharging.Output is distributed according to each battery's condition.

    • Target output tracking
    • Charge and discharge mode switching
  2. 02

    Condition-aware scheduling

    Builds charge and discharge schedules around each battery's SOH and limits.Eases the load on more degraded batteries.

    • Per-battery schedules
    • Dispatch weighted by degradation
  3. 03

    Safety cutoffs

    Alerts and stops immediately when a battery exceeds its limits.Rebalances output across the remaining modules.

    • Individual limits per battery
    • Automatic rebalancing after cutoff
  4. 04

    Energy market integrationComing soon

    Connects ESS at data centers and on the grid to revenue.Times charging and discharging to price signals.

    • Charge when prices are low, discharge when they're high
    • For data center and grid ESS

04Status

Co-development with industry leaders

MoU
Co-developing reused-battery ESS with LG Energy Solution

Shared IP

PoC
Field validation and joint life-model validation with LS ELECTRIC

Field validation

Grid
Built for power traders and data center ESS operators

Target customers

05Lifecycle

How data moves between stages

BOL · Deployment

JD Plan

Deployment decision · Economics

MOL · Operation

JD EMS

ESS charge and discharge control

EOL · End of life

JD Plan

End-of-life routing

Input
JD Plan deployment results (per-battery SOH and RUL) and live BMS data
Output
Operating history → JD Plan end-of-life decisions / retraining data for the life model

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