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Problem diagnosis · Solis

Solis Not Exporting — Export Limit, CT Clamp & G98 Configuration

Your Solis inverter is generating power but nothing is going to the grid. The three most common causes are a zero export limit in SolisCloud, a reversed CT clamp, or wrong G98/G99 grid code settings. This guide walks through each one.
  • Configuration issue, not hardware fault
  • Usually fixed remotely via SolisCloud
  • S5, S6 and RHI models covered
Solis generating but not exporting?

We check your SolisCloud settings, export limit, CT clamp readings, and grid code configuration remotely. Most no-export issues are resolved in a single session.

Book your free remote diagnosticBack to Solis hub

Independent — not affiliated with Ginlong Technologies.

5.0
13 Trustpilot reviews
Trustpilot Google

I have a GivEnergy system consisting of two batteries, two inverters and a controlling EMS (Energy Management System) which has not worked since Nov 2025. After six months I discovered Solar Tech Support, reached out to them and Ron phoned me back – how often do you get that service? Could not be more helpful – worked directly with me over the phone, outside what I would call normal working hours. Lucid explanations and we were able to discuss the issues and history using camera and email history. As this was a very rare setup, Ron was able to access an EMS expert in the field to confirm the solution. One sunny day in, I am now only paying for standing charge and a few pence for spikes in grid consumption while battery catches up with house demand.

Ian · May 2026 Trustpilot

When my GivEnergy system had an issue, I was completely left without support and had honestly lost all hope. Thankfully, I searched online and found Ron, which completely turned things around. After sending him a message, he responded incredibly fast and called me to assure me that he would get the problem fixed. I really admire his dedicated, supportive nature and his determination to find a solution. With this kind of outstanding attitude and customer service, he has absolutely secured a future customer in me.

Sree · May 2026 Trustpilot

Ron want out of is way to help, nothing was to much. He was very thorough in what he did Very knowledgeable I would highly recommend Ron and his company He did a fantastic job for me. if you have any problems, he'll do his best to help you out and resolve your problem. I wouldn't hesitate to recommend them

Dennis Brown · May 2026 Trustpilot

Ron took me through a diagnostic to confirm my GivEnergy Inverter had a fault. A common one as it turns out with the AC Inverter. As GivEnergy is defunct there is no immediate fix, aside from sourcing 2nd hand replacement. It may be that a fix becomes available over the summer which would make a lot of GivEnergy customers happy (Again)

Tony Deacon · May 2026 Trustpilot

Contacted Ron with a problem and he sorted it out quickly with no problems at all. Very knowledgeable on anything solar/ batteries. I would recommend him to anyone

Phill · May 2026 Trustpilot

I've spoken to Ron a couple of times with issues with my Givenergy installation. Such a friendly knowledge guy very highly recommended. Thank you very much for resolving my issues

michael fairhurst · May 2026 Trustpilot

Contacted Solar Tech Support in desperation. After explaining the issues I had with my system a diagnosis was made and a solution proposed. Fantastic service, even contacted a manufacturer to arrange replacement parts for me. Great communications, explained all they were doing and what I had to do, clearly and precisly. Followed up to confirm all was ok. Excellent service.

Mr Machin · May 2026 Trustpilot

After GivEnergy went into liquidation, just my luck, my battery started playing up (internal board crashed). Contacted my installer - not interested! Found Solar tech support on a Google search. Sooo glad I found this company! Ron is extremely helpful and has plenty of experience. He soon confirmed what the fault was, and helped me to get my system up and running again. Now moved my GivEnergy account to Solar tech support, and will definitely use again if I have more issues. Unusual to find such a helpful company in these times, no morons reading scripts, just direct contact with the engineer.

Keith Ballard · Apr 2026 Trustpilot

Contacted Solar Tech Support when trying to understand what my Givenergy inverter problem might be and what might be my options. Received good/honest advise which backed up my thoughts.

Hugh Speirs · Apr 2026 Trustpilot

Ron is a super star. Two months ago my GivEnergy battery failed a firmware upgrade leaving it a brick. My installer couldn't/wouldn't fix it. GivEnergy couldn't/wouldn't fix it. Then they went into administration and all hope was lost. A flurry of emails later and Ron had diagnosed the fault (failed USB flash drive, something I'd suspected) and talked me through resolving it. Two months of nothing resolved in about 3 hours. It's great to work with someone who pays attention to the details, knows that they're doing (not just following a script) and gets stuff sorted without a fuss or up-charging.

Christopher · Apr 2026 Trustpilot

I can add to the list of customers who had already 'given up' on GivEnergy due to their appalling customer service, and that was before they went into administration (their Trustpilot reviews don't lie!). So you can imagine my desperation when, having changed my ISP and my Inverter, predictably, proving to be the only device that didn't connect automatically to my new network, I found zero prospect of any customer support with GivEnergy having called in the administrators just five days earlier! The salvation came from Solar Tech Support. My IT advisor stumbled across their web site and some very helpful tips for beleaguered GivEnergy customers, as well as an offer to provide direct assistance. Nothing ventured, I decided to drop them an E-Mail, with very low expectations based on my experience of GivEnergy customer support. Within an hour Ron had responded with some pin point advice, and after a few exchanges of E-Mails he had nailed the problem, enabling the combined efforts of my IT advisor and solar installer to resolve it and reconnect my Inverter. Thank you Solar Tech Support, and Ron in particular, for coming to the aid of a deserted and despondent GivEnergy customer. Expert, razor sharp advice and first class customer service, even though I wasn't officially a customer.

customer · Apr 2026 Trustpilot

This company are a rare gem, I had a very unusual problem following a failed firmware upgrade on my GivEnergy kit. I then found out GivEnergy were in administration and had dismissed all their support staff! None of the usual fixes to try and restore my inverter comms would work, and I looked everywhere, forums, GivEnergy youtube support videos - even AI couldn't figure it out. My installer was talking about huge sums for system replacements, and being vague / evasive about if they'd even install replacement GivEnergy inverter. Enter Solar Tech Support, reassuring and knowledgeable from the very start, I've learnt loads about my solar system though the friendly chat while my engineer worked as he diagnosed the problem and figured out a fix procedure that I've not found anywhere else - amazing . If you need solar system repairs - especially if you like me have been left high and dry by GivEnergy, I cannot recommend this company enough. Give them a call.

Andy Thomas · Apr 2026 Trustpilot

I sent a message on their website regarding a problem I have on my Givenergy system. Although not supplied by Ronald, I thought it was worth an email. Within the hour on a Saturday, he phoned and we discussed the problem. He logged in remotely and gave excellent advice. I'm too far away for his on-site help but he did diagnose the problem and was happy also to chat through my thoughts about an upcoming solar/battery install I'm planning. Great bloke.... if only he was nearer!

Philip · Apr 2026 Trustpilot

I have a GivEnergy system consisting of two batteries, two inverters and a controlling EMS (Energy Management System) which has not worked since Nov 2025. After six months I discovered Solar Tech Support, reached out to them and Ron phoned me back – how often do you get that service? Could not be more helpful – worked directly with me over the phone, outside what I would call normal working hours. Lucid explanations and we were able to discuss the issues and history using camera and email history. As this was a very rare setup, Ron was able to access an EMS expert in the field to confirm the solution. One sunny day in, I am now only paying for standing charge and a few pence for spikes in grid consumption while battery catches up with house demand.

Ian · May 2026 Trustpilot

When my GivEnergy system had an issue, I was completely left without support and had honestly lost all hope. Thankfully, I searched online and found Ron, which completely turned things around. After sending him a message, he responded incredibly fast and called me to assure me that he would get the problem fixed. I really admire his dedicated, supportive nature and his determination to find a solution. With this kind of outstanding attitude and customer service, he has absolutely secured a future customer in me.

Sree · May 2026 Trustpilot

Ron want out of is way to help, nothing was to much. He was very thorough in what he did Very knowledgeable I would highly recommend Ron and his company He did a fantastic job for me. if you have any problems, he'll do his best to help you out and resolve your problem. I wouldn't hesitate to recommend them

Dennis Brown · May 2026 Trustpilot

Ron took me through a diagnostic to confirm my GivEnergy Inverter had a fault. A common one as it turns out with the AC Inverter. As GivEnergy is defunct there is no immediate fix, aside from sourcing 2nd hand replacement. It may be that a fix becomes available over the summer which would make a lot of GivEnergy customers happy (Again)

Tony Deacon · May 2026 Trustpilot

Contacted Ron with a problem and he sorted it out quickly with no problems at all. Very knowledgeable on anything solar/ batteries. I would recommend him to anyone

Phill · May 2026 Trustpilot

I've spoken to Ron a couple of times with issues with my Givenergy installation. Such a friendly knowledge guy very highly recommended. Thank you very much for resolving my issues

michael fairhurst · May 2026 Trustpilot

Contacted Solar Tech Support in desperation. After explaining the issues I had with my system a diagnosis was made and a solution proposed. Fantastic service, even contacted a manufacturer to arrange replacement parts for me. Great communications, explained all they were doing and what I had to do, clearly and precisly. Followed up to confirm all was ok. Excellent service.

Mr Machin · May 2026 Trustpilot

After GivEnergy went into liquidation, just my luck, my battery started playing up (internal board crashed). Contacted my installer - not interested! Found Solar tech support on a Google search. Sooo glad I found this company! Ron is extremely helpful and has plenty of experience. He soon confirmed what the fault was, and helped me to get my system up and running again. Now moved my GivEnergy account to Solar tech support, and will definitely use again if I have more issues. Unusual to find such a helpful company in these times, no morons reading scripts, just direct contact with the engineer.

Keith Ballard · Apr 2026 Trustpilot

Contacted Solar Tech Support when trying to understand what my Givenergy inverter problem might be and what might be my options. Received good/honest advise which backed up my thoughts.

Hugh Speirs · Apr 2026 Trustpilot

Ron is a super star. Two months ago my GivEnergy battery failed a firmware upgrade leaving it a brick. My installer couldn't/wouldn't fix it. GivEnergy couldn't/wouldn't fix it. Then they went into administration and all hope was lost. A flurry of emails later and Ron had diagnosed the fault (failed USB flash drive, something I'd suspected) and talked me through resolving it. Two months of nothing resolved in about 3 hours. It's great to work with someone who pays attention to the details, knows that they're doing (not just following a script) and gets stuff sorted without a fuss or up-charging.

Christopher · Apr 2026 Trustpilot

I can add to the list of customers who had already 'given up' on GivEnergy due to their appalling customer service, and that was before they went into administration (their Trustpilot reviews don't lie!). So you can imagine my desperation when, having changed my ISP and my Inverter, predictably, proving to be the only device that didn't connect automatically to my new network, I found zero prospect of any customer support with GivEnergy having called in the administrators just five days earlier! The salvation came from Solar Tech Support. My IT advisor stumbled across their web site and some very helpful tips for beleaguered GivEnergy customers, as well as an offer to provide direct assistance. Nothing ventured, I decided to drop them an E-Mail, with very low expectations based on my experience of GivEnergy customer support. Within an hour Ron had responded with some pin point advice, and after a few exchanges of E-Mails he had nailed the problem, enabling the combined efforts of my IT advisor and solar installer to resolve it and reconnect my Inverter. Thank you Solar Tech Support, and Ron in particular, for coming to the aid of a deserted and despondent GivEnergy customer. Expert, razor sharp advice and first class customer service, even though I wasn't officially a customer.

customer · Apr 2026 Trustpilot

This company are a rare gem, I had a very unusual problem following a failed firmware upgrade on my GivEnergy kit. I then found out GivEnergy were in administration and had dismissed all their support staff! None of the usual fixes to try and restore my inverter comms would work, and I looked everywhere, forums, GivEnergy youtube support videos - even AI couldn't figure it out. My installer was talking about huge sums for system replacements, and being vague / evasive about if they'd even install replacement GivEnergy inverter. Enter Solar Tech Support, reassuring and knowledgeable from the very start, I've learnt loads about my solar system though the friendly chat while my engineer worked as he diagnosed the problem and figured out a fix procedure that I've not found anywhere else - amazing . If you need solar system repairs - especially if you like me have been left high and dry by GivEnergy, I cannot recommend this company enough. Give them a call.

Andy Thomas · Apr 2026 Trustpilot

I sent a message on their website regarding a problem I have on my Givenergy system. Although not supplied by Ronald, I thought it was worth an email. Within the hour on a Saturday, he phoned and we discussed the problem. He logged in remotely and gave excellent advice. I'm too far away for his on-site help but he did diagnose the problem and was happy also to chat through my thoughts about an upcoming solar/battery install I'm planning. Great bloke.... if only he was nearer!

Philip · Apr 2026 Trustpilot
ℹ️

Key point: A Solis inverter that generates but does not export is almost always a configuration issue — not a hardware fault. The export limit setting, CT clamp direction, and grid code are the three things to check. All three can be diagnosed remotely using SolisCloud data.

Diagnostics

5-step no-export diagnostic

Work through these steps in order. The first two cover the most common causes — most no-export issues are resolved at step 2 or step 3.

1

Confirm the inverter is generating but not exporting

Open SolisCloud (soliscloud.com or the app) and check two readings on the live dashboard:

Generation power (PV power) — what the solar panels are producing right now
Grid export power — what is being pushed to the grid

If generation is positive (e.g. 2.5kW) but export shows zero or near-zero, you have a confirmed no-export condition. The inverter is producing solar power but is not sending it to the grid.

Not generating at all? That is a different fault. See system not producing instead.
2

Check the export limit setting in SolisCloud

This is the most common cause of Solis no-export. The export limit tells the inverter the maximum power it is allowed to send to the grid. If set to zero, no export occurs.

1. Log into SolisCloud → navigate to your inverter → Settings or Advanced Settings.
2. Find "Export Limit" or "Power Control" — exact menu name varies by firmware version.
3. Check the export limit value. If it reads 0W or 0%, this is your problem.
4. Set to your permitted value:
• G98 systems (≤3.68kW): set to 3680W
• G99 systems (>3.68kW): set to your DNO-approved limit
• If unsure, check your MCS certificate or DNO acceptance letter

Some export limit settings require installer-level access. If you cannot change the setting yourself, STS can adjust it remotely.

3

Verify the CT clamp is installed correctly

The CT (Current Transformer) clamp sits on your main AC cable and tells the inverter how much power is flowing to and from the grid. If installed backwards, everything inverts:

Correct installation

Arrow on CT clamp points towards the grid (away from your home). Inverter reads export correctly and manages power flow.

Reversed installation

Arrow points towards your home. Inverter reads import as export — thinks it is already exporting and blocks further export.

How to check remotely: Wait for a sunny period when household consumption is low. If SolisCloud shows high import when it should show export, the CT clamp is likely reversed.

Physical correction requires safe access to the main AC wiring — a qualified engineer should flip the clamp.

4

Check G98/G99 grid code configuration

Solis inverters must be set to the correct UK grid code. Wrong settings can cause the inverter to restrict or block export:

In SolisCloud: Navigate to inverter settings → Grid Code or Country Code section.
Verify the code is set to: UK G98 (systems ≤3.68kW per phase) or UK G99 (larger systems).
Common errors: Factory default left on (wrong country), previous installer set wrong code, firmware update reset the value.

Grid code changes typically require installer-level SolisCloud access.

5

Check if the generation meter is registering export

Sometimes the inverter is exporting, but the metering is wrong. If SolisCloud shows export but your energy supplier does not record it:

Check your smart meter — does it show export units accumulating?
Check the MCS generation meter — is it counting kWh?
Check your SEG tariff — is the Smart Export Guarantee tariff active with your supplier?

If the inverter is exporting (confirmed in SolisCloud) but the meter is not recording it, the issue is meter configuration — not the inverter. Contact your energy supplier about the meter setup.

Why Solis systems stop exporting — and how it gets missed

The most common scenario we see is a Solis system that was installed correctly but had its export limit set to zero during commissioning — either deliberately (to comply with a DNO restriction that has since been lifted) or accidentally (factory default left unchanged). The homeowner only notices months later when they realise their Smart Export Guarantee payments have stopped or their electricity bills haven't dropped as expected.

The second scenario is a CT clamp installed the wrong way round. This is an installation error that causes the inverter to misread grid flow. The inverter thinks the house is importing heavily when it is actually exporting, so it restricts output to avoid exceeding what it believes is the export limit. The result is zero or near-zero export even on sunny days with low household consumption.

Both issues are diagnosable remotely using SolisCloud monitoring data. STS reviews your inverter settings, export limit configuration, CT clamp readings, and grid code parameters as part of a standard remote diagnostic. If the CT clamp needs physically flipping, we confirm the diagnosis remotely and arrange an on-site visit to correct it.

FAQ

Solis no export — common questions

The three most common causes are: the export limit in SolisCloud is set to zero, the CT clamp is installed backwards, or the G98/G99 grid code configuration is wrong. All three are configuration issues — the inverter hardware is usually working correctly. STS diagnoses these remotely using SolisCloud data and inverter settings review.
Log into SolisCloud and navigate to your inverter's settings. Find the Export Limit or Power Control section and set it to your permitted value — typically 3680W for G98 domestic systems. Some settings require installer-level access. If you cannot change the setting yourself, book a remote diagnostic and STS can adjust it for you.
Check SolisCloud when the sun is shining and household consumption is low. If SolisCloud shows high import when it should show export, the CT clamp is likely reversed. The arrow on the clamp body should point towards the grid, away from your consumer unit. A reversed clamp causes the inverter to block export because it thinks you are already exporting.
In most cases, yes. Export limit settings and grid code configuration can be checked and corrected remotely through SolisCloud. If the problem is a reversed CT clamp, we confirm the diagnosis remotely using monitoring data, but the physical correction needs someone on site. STS provides both remote diagnostics and on-site visits across the UK.
G98 applies to installations up to 3.68kW per phase — these can connect without prior DNO approval. G99 applies to larger systems and requires formal application. The grid code setting determines voltage and frequency protection limits. Using the wrong code can cause the inverter to restrict export or disconnect unnecessarily. See our G98 vs G99 guide for the full explanation.
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Solis not exporting? We fix it remotely.

We review your SolisCloud settings, export limit, CT clamp data, and grid code configuration. Most no-export issues are diagnosed and resolved in a single remote session.

  • Free remote diagnostic · no fix, no fee
  • Export limit and grid code correction included
  • On-site CT clamp correction if needed

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