Adaptive Charging (AC)

🔍 Overview

This feature allocates a small amount of current to a charge point when it enters certain OCPP states, and will only keep or increase that allocation if charging resumes.

If no charging request follows, the allocation is removed after a set time.

Goal: Optimize load distribution and make better use of available power.

🛠 Applicable OCPP States

The allocation adjustment applies when a charge point is in one of the following states:

• 🚗 SuspendedEV – Charging paused by the EV.
• 🔌 SuspendedEVSE – Charging paused by the EVSE.
• ⏳ Preparing – EVSE preparing for charging (e.g., connection established, but not yet drawing power).

⚙ How It Works

1. State Detection – The system monitors each charge point’s OCPP status in real time.
2. Initial Allocation – When the charge point enters one of the applicable states, LM allocates the minimum allocated current (default: 6A) for the re-offer timeout (default: 1 minute).
3. Charging Resumes – If the charger moves into Charging during this period, LM increases the allocation up to the charger’s configured limit (if available).
4. No Charging Activity – If the charger stays in the same state beyond the re-offer timeout, LM reduces the allocation to 0A for the no-offer timeout (default: 15 minutes).
5. Cycle Repeat – After the no-offer timeout expires, LM repeats the process starting from step 2.
6.  

💡 Both the re-offer timeout and no-offer timeout can be configured to match site requirements.

💼 Use Case

In the listed OCPP states, most EVs do not require full current. By allocating only a small amount initially and removing it after a set time if not needed, the system avoids reserving capacity for idle sessions.

🌟 Benefits

• 📊 Optimized Load Distribution – Freed-up current can be reallocated to other chargers or sites with active demand.
• 🌱 Energy Efficiency – Prevents waste by not supplying unused current.
• 🚀 Improved Site Performance – Allows load management to prioritize active charging sessions.

📌 Example Scenario

A charger enters SuspendedEV because the EV paused charging.

LM allocates 6A for 1 minute, ready to resume charging if the EV requests it.

If nothing happens after that, the allocation drops to 0A for 15 minutes, freeing capacity for other chargers.