What is the GivEnergy EMS and what does it control?

The EMS (Energy Management System) is the control layer that coordinates GivEnergy inverters and batteries. It monitors grid import/export, solar generation, and battery state of charge, then instructs each inverter how much to charge or discharge. When you set Timed Charge, Timed Discharge, or Timed Export slots in the portal or app, you are programming the EMS.

What happens when Timed Discharge reaches the target SOC?

When the battery reaches the target SOC during a Timed Discharge slot, it stops discharging and the system falls back to grid power for any remaining household demand. It will still charge from excess solar if available, even during a discharge slot. The target SOC is not a hard floor — in Self-Consumption mode the battery may discharge below it if solar and grid cannot meet demand.

Why does Timed Export keep the battery at a high SOC afterwards?

Timed Export overrides Timed Discharge, and once the export target SOC is reached, the system does not automatically resume discharge behaviour. You need to either manually reset the export slot in the portal, or ensure your daily schedule sequence is set so a Timed Discharge slot follows the export window. This is a common source of confusion — the battery stays full after an export window unless discharge is explicitly scheduled to follow.

Configuration guide · GivEnergy EMS

GivEnergy Energy Management System — Complete Configuration Guide

Q: Why isn't my GivEnergy timed charge working?

The most common causes are: the charge slot crosses midnight (GivEnergy cannot span a single slot across midnight — split it into two slots), a third-party API connection (Octopus Intelligent, etc.) is overriding the schedule, the portal timezone is wrong causing a schedule offset, or the CT clamp direction is inverted so the inverter is misreading import/export. Check these four in order.

The GivEnergy EMS coordinates every energy flow in your home — when the battery charges, when it discharges, and when surplus energy is exported. Get it right and your system runs like clockwork. Get it wrong and you'll be importing peak-rate electricity with a full battery sitting doing nothing.

Book configuration review GivEnergy configuration hub

Timed charge, discharge & export explained
The midnight crossing rule
Target SOC and multi-inverter setups

EMS not working correctly?

If your charge schedule isn't applying, the battery isn't discharging when expected, or your system keeps reverting to the wrong mode, we diagnose EMS configuration issues remotely — identifying schedule conflicts, timezone errors, and API overrides.

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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

Ian · May 2026 Trustpilot

Sree · May 2026 Trustpilot

Dennis Brown · May 2026 Trustpilot

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

Mr Machin · May 2026 Trustpilot

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

Christopher · Apr 2026 Trustpilot

customer · Apr 2026 Trustpilot

Andy Thomas · Apr 2026 Trustpilot

Philip · Apr 2026 Trustpilot

EMS settings Charge schedule Tariff optimisation Battery not charging Settings changing Tariff lockout CT clamp Brand hub →

Overview

What is the GivEnergy EMS?

The Energy Management System is the intelligence layer inside your GivEnergy inverter. It continuously monitors four data streams and uses them to decide what to do with every watt of power in your home.

☀️

Solar (PV) generation

Live output from your panels. The EMS prioritises using this locally before charging the battery or exporting.

⚡

Grid import & export

Measured by CT clamps on the grid supply. The EMS uses this to detect whether you're importing or exporting and at what rate.

🔋

Battery state of charge

Real-time SOC from the BMS. The EMS uses this to apply target SOC limits during charge and discharge operations.

🏠

Home consumption

Calculated from generation and grid data. Used to ensure the battery response matches actual demand rather than over or under-supplying.

Your schedule tells the EMS when to run Timed Charge, Timed Discharge, or Timed Export. Between scheduled slots it falls back to Self-Consumption mode, using solar first and only drawing from the grid when needed.

Setup

How to access EMS settings

Via the portal (recommended)

1.Log into givenergy.cloud

2.Go to Dashboard → Inverters

3.Select your inverter card

4.Click Settings to open EMS configuration

The portal provides the most complete view of all EMS options.

Via the app

1.Open GivEnergy app

2.From the home screen, tap the cog icon (top right)

3.This opens inverter and EMS settings

The app exposes the main scheduling options — sufficient for most users.

Charge slots

Setting up Timed Charge

Timed Charge instructs the battery to charge from the grid during your defined slot, regardless of solar availability. This is how you take advantage of cheap overnight electricity rates.

Configuration

Start time Beginning of your cheap-rate window (e.g. 00:30)

End time End of cheap-rate window (e.g. 05:30). Must not cross midnight.

Target SOC The level to charge to (typically 100%). Charging stops when this is reached.

Key rules

·Slots cannot cross midnight — split if needed

·Multiple slots can be used in one day

·Timed Charge is overridden by Timed Export

·During the slot, battery also accepts solar surplus

·Battery stops at target SOC, system returns to self-consumption

Example: Octopus Go (00:30–05:30)

Charge Slot 1: 00:30 → 05:30 | Target SOC: 100%

No midnight split needed — slot sits entirely within one day.

Example: Economy 7 with midnight crossing (23:30–06:30)

Charge Slot 1: 23:30 → 23:59 | Target SOC: 100%

Charge Slot 2: 00:00 → 06:30 | Target SOC: 100%

Split at midnight — both slots work correctly together.

Discharge slots

Setting up Timed Discharge

Timed Discharge forces the battery to supply the household during defined windows, displacing expensive peak-rate grid import. The target SOC sets the minimum the battery will discharge to before stopping.

Configuration

Start time When peak rate begins (e.g. 16:00)

End time When peak rate ends (e.g. 22:00)

Target SOC Minimum battery level. Set to 4% for full utilisation, 20% to preserve some reserve.

Important behaviour

·Discharge stops at target SOC — grid covers remainder

·Battery still charges from solar surplus during a discharge slot

·Timed Charge overrides Timed Discharge if slots overlap

·Timed Export overrides Timed Discharge completely

·Multiple discharge slots can be set for the same day

Example: three-slot discharge day

Discharge Slot 1: 00:00 → 05:00 | Target SOC: 4% (overnight protection)

Discharge Slot 2: 05:00 → 16:00 | Target SOC: 60% (preserve for evening)

Discharge Slot 3: 16:00 → 23:59 | Target SOC: 4% (full evening discharge)

Between 05:00–16:00 the battery retains 60% reserve — enough to power evening peak from battery rather than grid.

Export

Setting up Timed Export

Timed Export pushes stored battery energy to the grid during high-value export windows. It overrides Timed Discharge and requires manual reset once the target is reached.

⚠

Timed Export does not automatically resume discharge

Once the battery reaches the Timed Export target SOC, the system stops exporting but does not automatically begin Timed Discharge. The battery will sit at whatever SOC it's at. You must either manually reset the export slot, or sequence a Timed Discharge slot immediately after the export window in your daily schedule. This is the most commonly misunderstood EMS behaviour.

Export slot settings

Export windowThe window when export is valuable (e.g. 16:00–19:00 on Agile)

Target SOCMinimum SOC the battery exports down to (e.g. 33%)

Export rateHow fast to export — set per inverter in kW

Export duration factors

·Total battery capacity (more kWh = longer export)

·Current SOC when export starts

·Target SOC (how far down you're exporting)

·Configured export power limit per inverter

Critical rule

The midnight rule

GivEnergy slots — charge, discharge, or export — must sit entirely within a single 24-hour period. No slot can span midnight. This is a firmware constraint, not a portal bug. It applies in both the app and the portal.

❌ Crosses midnight — will not work

WRONG

Charge Slot 1: 23:30 → 05:30

Spans midnight — ignored or behaves unpredictably

✓ Split at midnight — works correctly

CORRECT

Charge Slot 1: 23:30 → 23:59

Charge Slot 2: 00:00 → 05:30

Both slots apply correctly together

⚠

This is the most common reason batteries don't charge overnight

If someone set up your system and the overnight charging has "never quite worked," the midnight rule is usually why. Slots look fine in the interface but simply don't function when they cross 00:00. The fix is straightforward — split the slot at midnight. Check your current schedules and look for any that run from late evening through to early morning.

Best practice

EMS best practice tips

Always do these

✓Align charge slots precisely with cheap-rate window

✓Check portal timezone is set correctly (BST vs GMT shifts)

✓Verify schedule applied by checking Charts the next day

✓Keep discharge targets realistic — 4% for full utilisation, 10–20% if you want EPS reserve

✓Adjust seasonally — summer generation reduces how much overnight charge you actually need

Avoid these

·Slots that cross midnight

·Running manual EMS schedules alongside an API integration (Octopus Intelligent, etc.)

·Setting export target SOC to 0% — leaves nothing for household use

·Overlapping charge and discharge slots at the same time

·Making multiple schedule changes at once — change one thing, observe, then adjust

For tariff selection and how to match your cheap window to the most financially beneficial schedule, see the tariff optimisation guide. For CT clamp issues causing the EMS to misread grid import/export, see the CT clamp direction guide.

FAQ

GivEnergy EMS — common questions

Why isn't my GivEnergy timed charge working?

Check in order: (1) does the slot cross midnight? Split it. (2) Is there an API connection (Octopus Intelligent, etc.) overriding it? Check Connected Apps in the portal. (3) Is the portal timezone set correctly? A BST/GMT mismatch shifts your schedule by an hour. (4) Is the CT clamp pointing the wrong direction? This causes the inverter to misread import as export and vice versa.

What is the GivEnergy EMS target SOC?

Target SOC is the battery level the EMS aims for during a Timed Charge, Discharge, or Export slot. In Timed Charge, charging stops when this level is reached. In Timed Discharge, discharging stops at this level and the system falls back to grid for remaining demand. Setting it to 4% in a discharge slot means the battery delivers nearly all its stored energy before stopping.

Why does Timed Export leave my battery at a high SOC?

Timed Export overrides Timed Discharge, and once the export target SOC is reached, the system stops exporting but does not automatically start discharging. The battery stays at whatever level it reached. You need to either manually reset the export slot or ensure a Timed Discharge slot is scheduled to follow the export window in your daily schedule.

Can I have both Timed Charge and Timed Discharge on the same day?

Yes — this is normal and recommended. A typical day has a Timed Charge slot during the cheap overnight window, one or two Timed Discharge slots covering morning and evening peaks, and Self-Consumption mode handling the daytime. The slots must not overlap. Timed Charge takes priority over Timed Discharge if they accidentally overlap.

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