High Night Consumption With SolaX? Find the Hidden Load
This guide is written for SolaX owners who want a practical way to diagnose the problem before changing settings or calling support.
The goal is not to guess. The goal is to compare what the inverter, meter, battery and monitoring history are telling you.
Quick diagnosis
Use this guide when grid import is higher than expected during the night. In practice, the useful first step is to separate a real electrical state from a reporting or configuration problem.
Start with these checks:
hourly import,battery SOC drop,EV charger state,heat pump schedule,water heater schedule,baseline load- compare the inverter screen with the app rather than trusting only one number
- write down the exact time of the reading before changing anything
- repeat the check during sun, low load, and a known high load if possible
What this usually means
This situation often points to standby load, heat pump, EV charging, water heating, battery reserve behavior, or a hidden recurring appliance. The important detail is that SolaX systems can show different symptoms depending on inverter model, meter wiring, battery state, firmware and whether the data comes from cloud polling or a local path.
If one value looks wrong, avoid judging it alone. PV production, house load, grid power and battery power need to be read together. A battery schedule can make grid import look strange. A reversed CT clamp can make consumption look negative. A stale cloud value can make a healthy system look broken.
What to check first
- Check the physical inverter or meter display first.
- Compare it with the value shown in your monitoring app.
- Confirm whether the value is changing or only the timestamp is changing.
- Check whether the problem appears only at night, only during PV production, or only when the battery/EV charger is active.
- If the issue involves wiring, CT direction, export limitation or grid behavior, ask the installer to verify the setup.
Diagnostic table
| Signal | What to compare | Why it matters |
|---|---|---|
| Timestamp | Latest app reading vs inverter display | Shows whether data is stale or actually changing |
| Grid power | Import/export direction vs utility meter | Reveals meter or CT direction problems |
| Battery power | Charge/discharge vs SOC and schedules | Explains why PV surplus may not enter the battery |
What to monitor over time
For this specific issue, the most useful trends are: hourly night import, load spikes, battery SOC drop, recurring start times.
One reading is rarely enough. A ten-minute snapshot can be misleading if a cloud value is delayed, the battery is following a schedule, or the house load changes suddenly. A full day of history usually makes the pattern much clearer.
Safety note
Do not change inverter safety, grid-code, battery or export-limit settings blindly. If the setting affects grid behavior, battery protection or wiring, involve your installer.
Where SolaxMonitor helps
SolaxMonitor is useful here because it is built around the local Collector path. The Collector runs on an always-on device inside the home network, reads compatible SolaX data locally, and syncs authenticated readings to your account for dashboards, history and automations.
That means you can compare current values with history instead of relying on a single delayed screen. For problems like this, the most valuable view is often not a prettier dashboard, but a timeline that shows when the pattern started and whether it repeats.
Continuous monitoring helps
If you want to track this continuously, SolaxMonitor can help you compare PV, house load, battery, grid and Collector history in one place.
SolaxMonitor is an independent monitoring app for compatible SolaX systems. Full real-time history requires the local Collector path.