GivEnergy Smart Tariff Lockout — Understanding and Removing API Control
Your GivEnergy settings are greyed out, keep reverting, or change on their own — because your energy provider has API access to your inverter. Smart tariffs like Octopus Intelligent, Flux, and Agile work by connecting to compatible batteries and controlling charge and discharge automatically. This guide explains what's happening, what the provider is doing, and how to take back control if you want it.
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If you're not sure which service has control or whether revoking access will affect your tariff, we can review your portal connections and event log remotely and advise on the best approach for your specific setup and tariff.
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⚡ Safety Warning
Do not open your inverter or interfere with DC cabling. Solar panels produce live DC voltage whenever exposed to light. Always use your DC isolator switch and contact a qualified solar engineer for hands-on fault diagnosis.
What is a smart tariff lockout?
When you connect a smart tariff to a GivEnergy inverter, you grant the energy provider's systems API access to read and write inverter settings. This is how the tariff works — it dispatches charge and discharge commands based on grid pricing, demand forecasts, or network requirements. The "lockout" is what happens when the provider actively holds control of certain settings, making them unavailable for manual editing.
A smart tariff lockout is intentional — it is the tariff integration working as designed. The energy provider needs exclusive control of certain settings to deliver its service reliably. It becomes a problem when homeowners want manual control but didn't realise they surrendered it when they connected the tariff.
Different tariffs lock different settings. Typically: charge window times, system mode, and sometimes discharge windows. Reserve SoC and export limits are usually not affected. The greyed-out settings in the portal are the ones under provider control.
API access can be revoked from your GivEnergy portal account at any time. Revoking immediately restores manual control of all settings. The question is whether doing so affects your tariff rate or benefits — this is covered in the alternatives section.
Which energy tariffs connect to GivEnergy and what they control
GivEnergy has official API integrations with several UK energy providers. Each uses the integration differently — some are aggressive, others are hands-off.
Octopus Intelligent
Most restrictiveSets overnight charge windows based on its dispatch schedule. May override system mode during dispatch periods. Controls charge rate and target SoC for overnight sessions. Does not typically lock discharge settings.
Manual control of discharge windows, reserve SoC, and export limit. Some homeowners find they can set a Timed Discharge window for peak hours and Intelligent manages overnight charging around it — though this is not officially supported.
Octopus Flux
Structured controlSets charge windows aligned to the cheap overnight period (02:00–05:00) and discharge/export windows aligned to the expensive peak period (16:00–19:00). The schedule is fixed to the Flux price periods and does not vary daily.
Reserve SoC, export limit, and manual override outside the Flux windows. Flux's schedule is predictable — you can plan around it once you understand the three price periods.
Octopus Agile
Optional integrationThe Agile GivEnergy integration sets charge windows during the cheapest rate periods of the coming day. Control is less aggressive than Intelligent — it primarily sets when to charge rather than locking the full settings interface.
Agile's smart features are generally optional. If you prefer to manage scheduling yourself based on the Agile price feed, you can disconnect the integration and use GivTCP or Home Assistant for more granular control.
How to confirm you have a smart tariff lockout
If you try to edit a setting and the input field is not clickable, or the edit button is absent, that setting is under external control. This is the clearest sign of an active lockout. The portal may display a small indicator (padlock icon or info text) explaining that the setting is managed by a connected service.
If you can edit a setting but it reverts to a specific value within 5–15 minutes, an active API connection is pushing its value back. The reverted value will match what the energy provider requires for its current dispatch.
Go to givenergy.cloud → My Account → Third-Party Access (or Smart Tariff Connections). If an energy provider is listed with an active connection status, that provider has API access. The connection date shows when access was granted — if it coincides with when your settings started changing, that is the cause.
How to remove a smart tariff lockout — the correct order
This is the process most people get wrong. You must contact your energy provider before removing the API link — not after. Removing the link first blocks the unlock command from reaching your inverter.
Do not revoke the API link before getting confirmation
Only your energy provider can send the unlock command to your inverter. If you delete the API key or remove the device from the provider's app first, the unlock command has no path to reach your system — and the lockout stays in place. Keep the link active throughout the process.
Call or email your energy provider (Octopus, Ovo, etc.) and ask them to send an unlock command to your GivEnergy system. GivEnergy cannot do this — only the provider who applied the lockout can remove it. Lockouts are a feature of the tariff agreement, not a GivEnergy fault.
While waiting for confirmation, do not delete the GivEnergy API key from the provider's platform, revoke portal permissions at givenergy.cloud, or remove the GivEnergy device from the provider's app. The unlock command travels through this exact link — severing it before confirmation means the command cannot reach your inverter.
After the provider confirms the unlock has succeeded: go to givenergy.cloud → Account Security → Connected Services, find the provider's token and delete it. Also go into the energy provider's app and remove the GivEnergy device from their smart charging settings. Then re-enter your charge schedule, system mode, and reserve SoC in the portal.
Options for keeping tariff benefits while regaining control
Revoking the smart tariff connection is not always the right answer — it depends on what benefits the integration provides and what alternatives exist. Here are the main options.
Option 1 — Work with the lockout
If the tariff integration is working well and you are seeing bill savings, the lockout may be acceptable. Most integrations only lock charge settings — discharge, reserve SoC, and export limit usually remain editable. Set your discharge windows and reserve level manually, and let the tariff manage overnight charging.
Option 2 — GivTCP + Home Assistant
GivTCP provides local API access to your GivEnergy inverter and, combined with Home Assistant automations, can implement sophisticated charge/discharge logic based on Agile pricing, solar forecast, or time of day — without relying on the energy provider's cloud integration. This gives full control while still optimising for tariff rates.
Option 3 — Manual schedule matching the tariff periods
Disconnect the integration and manually set your Timed Charge window to match your tariff's cheap-rate hours. For Economy 7 and Octopus Go this is straightforward (fixed overnight window). For Agile this is less efficient (rates vary daily) but may be acceptable if you are on a flat-ish rate arrangement.
Option 4 — Switch tariff
If the smart tariff integration is causing problems and the bill savings don't justify the loss of control, switching to a simpler tariff (Octopus Go, Economy 7, or a flat-rate time-of-use tariff) gives you a fixed cheap window to set in the schedule manually — without any API integration.
Broader guide to why GivEnergy settings revert — including firmware resets and third-party integrations.
Setting up Timed Charge, Discharge, and Export schedules after taking back manual control.
If the tariff's Export First mode is sending stored energy to the grid instead of powering the house.
All GivEnergy fault guides, configuration pages, and services.
Smart tariff lockout questions
A smart tariff lockout is when your energy provider's integration has API write access to your GivEnergy inverter and is actively controlling certain settings. Affected settings may appear greyed out in the portal, or they revert to the provider's values within minutes of being changed manually. This is not a fault — it is a feature of smart tariff integrations that becomes a problem when homeowners want manual control of their battery settings.
This depends on your tariff. Octopus Intelligent requires smart device control to deliver its off-peak pricing — revoking access typically removes you from the smart charging benefit. Octopus Flux uses the integration to manage its daily schedule — revoking means you manage charge/discharge manually. Octopus Agile's integration is optional for most features. Always check your provider's specific terms before revoking API access.
Do not revoke the portal connection first. Contact your energy provider (Octopus, Ovo, etc.) and ask them to send an unlock command to your inverter while the link is still active. Only your energy provider can do this — GivEnergy cannot override the lockout on their behalf. Once the provider confirms the unlock has succeeded, you can then remove the API token at givenergy.cloud → Account Security → Connected Services, and disconnect the device from the provider's app. If you already deleted the API key or removed the device before getting confirmation, re-add it temporarily so the provider can resend the unlock command.
Not fully — Octopus Intelligent is designed to control charging automatically based on its dispatch system. It doesn't officially support a hybrid mode where you set fixed windows alongside its smart dispatch. Some homeowners disconnect the integration, manually set their charge windows during Octopus off-peak hours (typically 23:30–05:30), and accept slightly less optimised dispatch. GivTCP with Home Assistant can implement more sophisticated Agile-rate-aware control as an alternative. A remote session can help you understand which approach suits your setup.
Not sure which service has control — or whether to remove it?
We can review your portal connections, API access log, and tariff setup remotely and advise on exactly what has control, what it's doing, and the best options for your specific tariff and usage pattern.
This is a brand-specific version of our general battery not charging guide, which covers all brands.