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Configuration · GivEnergy · G98 / G99

GivEnergy Export Limit — What to Set, Why It Resets & G98 vs G99

The export limit controls how much power your GivEnergy system is permitted to send to the grid. Set it wrong and you either violate your DNO conditions or silently lose export income. Set it to zero — which firmware updates do automatically — and you're generating power that goes nowhere.
  • Most UK single-phase systems: 3,680W
  • Firmware resets this to 0W silently
  • G98 and G99 conditions explained
Not sure what your export limit should be?

Your correct export limit is determined by your DNO connection conditions — not by what's convenient or what the installer set at commissioning. We can check your MCS documentation, confirm your G98/G99 status, and set the correct value remotely.

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Not affiliated with GivEnergy Ltd. Independent diagnosis and configuration.

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
Background

What the export limit setting does

The export limit tells the GivEnergy inverter the maximum power it is allowed to push onto the grid at any moment. The inverter actively enforces this — if solar generation minus household consumption would exceed the limit, the inverter throttles down output rather than exporting above it.

SET TO 0W

No export permitted

All generation is consumed by the house or stored in the battery. Any surplus above what the house and battery can absorb is curtailed — the panels back off and that energy is lost. Required for some DNO conditions and leasehold properties.

SET TO 3,680W

Standard single-phase

The G98 limit for single-phase UK connections. Correct for most residential installations. Excess generation above household consumption and battery capacity is exported at up to 3.68kW.

DNO-SPECIFIED LIMIT

Custom G99 limit

If your DNO issued a G99 approval with a specific export cap — e.g. 1,500W or 2,000W — this figure takes precedence. Your connection agreement will state the exact value. Never exceed your DNO-approved limit.

The export limit affects your MCS/G98/G99 compliance. Exporting above your DNO-approved level is a breach of your connection conditions. If your system has been exporting above the approved limit — for example because a firmware reset removed a restriction that was correctly set — you should notify your DNO and correct the setting promptly.
What value to use
Setting the correct value

What export limit should you set?

The correct value is determined by your DNO connection conditions — not by what your installer set, not by what seems reasonable, and not by the inverter's maximum capability. Check your documents before changing this setting.

Standard single-phase UK home
G98 — most common
Set to 3,680W. This is the G98 single-phase limit. Most residential UK solar installations fall under G98 — the system notifies the DNO but doesn't require prior approval. If your MCS certificate says G98 and no other export condition was set, 3,680W is correct.
Three-phase connection
G98 three-phase
Set to 11,040W (3 × 3,680W) if three-phase G98, or to your DNO-specified figure if G99 applies. Three-phase installations are less common in domestic settings but do occur on larger homes and properties with high electrical demand.
G99 with a DNO-specified cap
Check your approval letter
Use the exact figure stated in your G99 approval letter from the DNO. This may be lower than 3,680W — common values are 1,500W, 2,000W, or 2,500W depending on what the DNO assessed. This document was issued before or at installation — check your installer paperwork.
Zero export required
Leasehold / specific DNO condition
Set to 0W. Required if your lease, building consent, or DNO condition prohibits any grid export. Also used on some commercial-on-domestic installations. If set to 0W, you will not receive any export payments — ensure this is genuinely required before setting it.
Where to find your approved export level. Check your MCS certificate (issued at installation), your DNO connection agreement or G98/G99 notification receipt, or your original installation contract. If you can't find these, contact your installer — they are required to keep records. If your installer has gone bust, contact your DNO directly with your property address and MPAN.
Grid connection standards
G98 and G99 explained

G98 vs G99 — which applies to your installation?

G98 and G99 are the UK grid connection standards that govern how solar and battery systems connect to the distribution network. Which one applies determines your maximum export level and what the DNO must be told.

G98 — notification only

Up to 3.68kW single-phase export

Most UK residential solar installations fall under G98. The installer notifies the DNO that the system has been connected — no prior approval is required. The DNO cannot refuse connection under G98.

Single-phase systems up to 3.68kW export
Notification sent within 28 days of installation
No DNO approval needed before connecting
Export limit: 3,680W
G99 — prior approval required

Larger systems or higher export

G99 applies to larger systems, three-phase connections, or any installation the DNO determines needs assessment. The DNO reviews the application and may impose conditions — including a specific export cap — before issuing approval.

Systems above 3.68kW single-phase export
DNO approval required before energising
DNO may specify a lower export limit than the inverter maximum
Export limit: as stated in G99 approval letter
Battery storage and G98/G99. Adding battery storage to an existing solar installation can change its G98/G99 status if the combined export capability now exceeds the G98 threshold. If a battery was added after the original solar installation and the original was G98, confirm with your installer whether G99 now applies — the export limit in the GivEnergy portal must reflect any new conditions.
Common problem
Very common after updates

Firmware update reset the export limit to 0W

GivEnergy firmware updates regularly reset the export limit to 0W. When this happens, the system continues to generate and the battery continues to charge and discharge — but nothing is exported to the grid. On an export tariff, this means you stop earning export payments immediately, silently, until someone checks the setting.

How to tell if the export limit reset

Portal power flow shows solar generating and battery charging, but grid arrow never shows export even when battery is full and solar exceeds consumption
Export payments from your SEG or Octopus/other export tariff suddenly dropped or stopped
Monthly energy statement shows zero or near-zero export after a period of normal exporting
Timing coincides with a firmware update

The financial impact

In summer months, a well-sized system on a G98 connection might export 5–15 kWh per day. At Octopus Flux export rates or SEG rates of 4–15p/kWh, a blocked export limit costs £0.20–£2.25 per day — potentially £50–£300 over a lost summer season before the problem is noticed.

The system appears to be working normally in every other respect. The only sign is that export figures drop to zero in the portal and export payments stop — which many homeowners don't check frequently enough to catch quickly.

Check the export limit after every firmware update. Add it to your post-update checklist alongside system mode and charge window settings. See the firmware settings reset guide for the full list of settings to check after any GivEnergy update.
How to set it
Portal configuration

Setting the export limit in the GivEnergy portal

The export limit is set remotely via the portal. No site visit or physical access to the inverter is needed.

Steps to set the export limit

1
Log into givenergy.cloud

Sign in with your account credentials at givenergy.cloud. Go to My Inverter in the left sidebar.

2
Navigate to Advanced Settings

The export limit is found under Advanced Settings — not under System Mode Settings. Look for a field labelled Export Limit, Grid Export Limit, or similar. On some portal versions this may be under Battery Options or a separate Export section.

Portal version varies. The exact location of the export limit field depends on your GivEnergy portal version and inverter generation. If you cannot find it, contact GivEnergy support or book a remote session for model-specific guidance.
3
Enter the correct value in watts

The field takes a value in watts (W), not kilowatts. Enter 3680 for the standard G98 single-phase limit, or the exact figure from your G99 approval letter. Enter 0 only if zero export is genuinely required. Do not leave the field blank.

4
Press Submit and verify

After submitting, wait 2–3 minutes for the setting to propagate to the inverter. On a sunny day, check the portal power flow — if solar is generating above household consumption and the battery is full, you should see the grid arrow showing export up to your new limit.

Verification tip: The quickest way to verify the export limit is working is to check on a clear midday when the battery is at 100% SoC. The portal should show grid export. If it still shows zero, check whether the battery is genuinely full and solar is above consumption — the system will not export if the battery still has capacity to fill.
Export income
Export tariffs and SEG

Export tariffs — what the export limit affects

If you're on a Smart Export Guarantee (SEG), Octopus Outgoing, Octopus Flux, or any other export tariff, a blocked export limit directly reduces your income. The export limit is the single most important setting for export revenue.

How the export limit affects tariff earnings

At 0W: no export payments at all, regardless of tariff or generation
At 3,680W: full G98 export — your smart meter records actual export and the supplier pays accordingly
At a DNO cap below 3,680W: export is capped at that level even if the inverter and panels could produce more
The export limit in the GivEnergy portal must be set correctly for your smart meter to record the exports your tariff pays for

Timed export and the export limit

GivEnergy's Timed Export mode discharges the battery to the grid during a defined window — used on tariffs like Octopus Flux where export rates are highest at peak times. The export limit caps how fast this discharge can export, even in Timed Export mode.

If you use Timed Export on Octopus Flux and the export limit has reset to 0W, the battery will try to discharge but nothing will reach the grid — the timed export window will complete with zero actual export and zero income.

This is a brand-specific version of our general export limit issues guide, which covers all brands.

FAQ

Export limit questions

Three possible causes: the export limit is set to 0W (check Advanced Settings first — this is the most common cause, especially after a firmware update), the battery has capacity remaining so all excess solar is going into the battery rather than being exported, or the CT clamp is reversed and the inverter is misreading what's actually happening. Check the export limit first, then check the battery SoC when this happens.
Not without G99 approval from your DNO. 3,680W is the G98 limit for single-phase connections — exceeding this requires prior DNO approval under G99. Setting a higher limit in the portal without G99 approval would put you in breach of your connection conditions. If your system genuinely has higher export capability and you want to use it, apply to your DNO for G99 approval first.
Possibly — some installers set 0W as a conservative default during commissioning and never return to correct it. Others set 0W because your specific connection condition requires it (leasehold, landlord restriction, or DNO condition). Check your installation paperwork and MCS certificate first. If no zero-export condition is stated, it's likely an oversight and 3,680W is the correct G98 value for a standard single-phase connection.
Yes, directly. SEG payments are based on actual metered export recorded by your smart meter. If the export limit in the GivEnergy portal is set to 0W, nothing reaches the grid, nothing is recorded by your smart meter, and your SEG supplier has no export to pay for. The portal export limit is the gate that controls whether any export reaches the meter at all.
The export limit itself doesn't change when you switch tariff — 3,680W (G98) is still the correct limit for a standard single-phase connection regardless of which export tariff you're on. What does change is your System Mode settings and Timed Export windows to take advantage of Flux's peak export periods. Check that your export limit is set to 3,680W (not 0W), then configure Timed Export to discharge the battery during Flux's high-export-rate window.
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Not exporting? We'll find out why and fix it remotely.

Tell us what the portal shows for grid flow, whether you have an export tariff, and when the problem started. We'll identify whether it's the export limit, the CT clamp, the system mode, or something else — and restore it in one session.

  • Not affiliated with GivEnergy Ltd
  • Remote configuration from £75
  • Export settings corrected in a single session

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