A remote diagnostic session reviews your portal data live — system mode, discharge history, CT clamp readings, and event log — and confirms the exact cause.
Book your free remote diagnosticWhat's includedRon was very knowledgeable and patient as we worked through the cause of Givenergy Hybrid Inverter suddenly failing (with 0W grid). He was able to quickly identify the probable cause, and point me in the right direction to identify the ‘burnt out’ AC isolator switch & piece of cable, which I was able to find a local electrician to replace. The best £95 I have spent. Thanks Ron.
Excellent support. He is extremely knowledgeable and his experience is second to none. I have GivEnergy equipment and he sorted out my solar problems remotely. He was understanding and patient and excellent to deal with. Would highly recommend. Thank you
quick service - sorted in 30 mins. well worth saving yourself hours of reading Facebook forums! thanks
Fantastic service, I would highly recommend. From first contact my solar issue was resolved within 2 days. Wouldn't use anyone else.
What an Amazing service and so helpful . I have had problems with a faulty GivEnergy inverter and Ron has been so diligent in investigating and reporting on it . I’d give him more than 5 stars if I could for his help in diagnosis and potential solution. Thoroughly recommend .
Solar Tech have been everything you expect and want from a support organisation. Easy to contact, quick to respond and their expertise and knowledge about GivEnergy Systems was amazing. All the work was done remotely, and they guided me through the recovery of a failed system, which ended up to be down to a physically damaged USB key installed in production that was corrupted and stopping one battery from working, locking the whole system. All fixed and the system is working again. Massive thanks to the team and their help. Will be my goto for any future issues with our GivEnergy system. The pictures shows the condition of the USB as installed..
In order of how commonly we see each cause.
Eco Mode discharges against live house demand, and it does cover the house at night. It does not follow a set discharge time, and it never exports to the grid. If you want the battery to cover the house only during a set window, such as the evening peak, you need Timed Discharge or Time of Use mode.
The battery stops discharging when it hits its minimum SoC floor. If this is set to 30% or higher, a large share of stored energy appears locked away. Find and lower the operating range minimum in your portal settings.
A reversed CT clamp means the inverter cannot correctly read house demand. The battery may appear to discharge but all energy flows to the grid rather than covering home loads. See CT clamp installed wrong.
In Timed Discharge mode, the battery only discharges during the configured window. If the window is not set, is set to the wrong times, or is running on the wrong clock timezone, the battery will sit idle during the intended discharge period.
When grid voltage exceeds the inverter's safety threshold, the inverter suspends discharge as a protection measure. Most common on summer afternoons. Check the event log for overvoltage entries.
Less common. A BMS protection event — due to cell imbalance, over-temperature, or voltage deviation — can lock the battery out of discharge. Usually shows as a fault code in the event log. Requires engineer involvement.
Work through these in order — most cases are resolved before step 4.
Open your portal or app and find the system mode setting. Eco Mode and Self-Consumption mode are reactive. They discharge whenever house demand exceeds solar output, overnight included. What they will not do is follow a discharge schedule or push energy to the grid.
If you want the battery to discharge on a schedule — for example during 4pm–8pm peak-rate electricity — you need Timed Discharge or Time of Use mode. Set the mode, configure the discharge window and target SoC, save, and verify the setting has stuck. On GivEnergy, Timed Discharge still follows the house load inside the window: the battery supplies the home's demand and does not push power to the grid. Pushing power out of the battery, with the excess going to the grid, is Timed Export.
Find the operating range or minimum SoC setting in your portal. Check what the floor is — if it is set to 20% and the battery is currently at 21%, it will not discharge any further. Note the current battery SoC and compare it to the minimum. If they are close, the battery is working correctly — it has just reached its configured floor. Lower the minimum SoC if you want to access more of the stored energy.
If you are using Timed Discharge or Time of Use mode, confirm the discharge window matches your intended period. Also check the inverter clock — if it is running on UTC when the UK is on BST (UTC+1), the window runs one hour out of phase.
Example: if you want the battery to discharge 16:00–20:00 and the inverter is on UTC during BST, you need to set the window to 15:00–19:00 — or switch the inverter clock to local time.
Turn on a kettle and watch the grid import or house load reading in your portal. It should rise by approximately 2,000–3,000W. If the reading falls, stays flat, or moves in the wrong direction, the CT clamp is reversed — the inverter cannot correctly read house demand, so it cannot direct the battery to cover it. See the CT clamp installed wrong guide for the full diagnostic.
Open the event log in your portal and look for grid overvoltage events, battery protection trips, BMS warnings, or cell voltage alarms. Grid overvoltage (typically above 253V) causes the inverter to suspend discharge automatically. BMS protection events indicate a battery-side hardware issue. Either way, note the exact fault codes — they are the most useful information for a remote diagnostic session.
If your portal shows the battery discharging but the home is still drawing from the grid — or your export figure rises when the battery discharges — the discharge energy is going the wrong way. This is almost always a CT clamp or metering issue.
CT clamp reversed — discharge appears as grid export. A backwards CT clamp inverts the grid measurement. When the battery discharges, the inverter reads it as energy flowing to the grid rather than to the home — so it appears to export rather than consume. The home continues drawing from the grid as normal. The CT clamp test above will confirm this.
Export limit set to 0W blocking discharge. On some systems, a 0W export limit can cause the inverter to restrict or curtail discharge if the CT clamp reading suggests export is occurring. Check the export limit setting in your configuration — if it is 0W and the CT is misreading, discharge may be suppressed. See CT clamp installed wrong for the fix.
Grid overvoltage causing intermittent discharge suspension. If the battery discharges inconsistently — powering the home sometimes but not others — check the event log for intermittent overvoltage events. Grid voltage spikes cause temporary discharge lockouts that can look like the battery is failing to discharge when it is actually responding to a grid protection trigger.
A remote diagnostic session includes a live review of your portal data — system mode, discharge history, CT clamp readings, and event log. We confirm the exact cause and tell you whether it is a settings fix or whether an engineer needs to attend.
Due to unprecedented demand we’re currently only carrying out on-site work in Yorkshire, and replies are taking up to 7 days. Remote diagnostics continue for the whole UK as normal.
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