SmartGo Charge Support

Last updated: 3 August 2026 (v1.1.5)

SmartGo Charge is an unofficial companion app for EDF Energy customers enrolled in a smart EV charging tariff. This page covers common questions, troubleshooting steps, and how to get in touch.

SmartGo Charge is not affiliated with EDF Energy. For account billing, tariff changes, or issues with your EDF account, please contact EDF Energy directly at edfenergy.com/contact.

Getting Started

What do I need to use SmartGo Charge?

You need:

An active EDF Energy account
An EDF Go Electric tariff with the Smart Charging Bolt-On enabled
A compatible smart EV charger or vehicle registered with EDF's smart charging service
Your EDF Energy account email address and password

Optionally, a Glow Display and CAD adds near real-time meter readings — see Glow Display and CAD below.

How do I sign in?

On first launch, tap Get Started and enter the email address and password you use to log in to your EDF Energy online account. Your credentials are stored securely in your device's Keychain and are never sent to any server other than EDF Energy's own API.

The app says I don't have a smart charging device

This means your EDF account does not currently have a compatible smart charger or vehicle registered. Make sure you have the Smart Charging Bolt-On active on your EDF tariff. You can sign up at edfenergy.com/smart-charging-bolt-on.

Does SmartGo Charge work on iPad?

Yes. On iPad, SmartGo Charge uses a sidebar layout with permanent navigation and history filters, rather than the tab-based layout used on iPhone. Functionality is the same on both — only the layout differs.

What's on the Dashboard tab?

The Dashboard gives you the current state of play on one screen: whether your vehicle is charging right now, your scheduled charges, your charge target, and a summary of your setup (tariff, vehicle or charger). If you have connected a Glow Display and CAD, it also shows a live current reading from your meter.

Charging Schedule

Why are there no planned sessions showing?

Planned sessions are scheduled by EDF's smart charging system based on your preferences (ready-by time and charge target), your current electricity tariff, and grid conditions. If no sessions are shown it may mean:

Your vehicle is already at or above your charge target
Your charger is not currently connected to your vehicle
Smart charging is suspended — check the smart charging toggle on the main screen
EDF's system has not yet scheduled sessions for tonight — try refreshing later

What does Boost do?

Boost starts an immediate charge outside the normal smart schedule. Tap the BOOST button and confirm to begin. When active, the button shows ACTIVE in orange — tap it to stop the boost session early. Peak rates may apply during a boost charge.

What does suspending smart charging do?

Suspending smart charging tells EDF's system to stop managing your charging schedule. Your charger may continue charging at its own default behaviour. Resume smart charging to hand control back to EDF's system. Use the smart charging toggle on the main screen, or go to Settings → Data Sources → EDF Energy → Smart charging enabled.

Charging History

Why does my history only go back a few days?

The EDF API provides up to 12 hours of completed session history per refresh. SmartGo Charge stores sessions on your device each time it refreshes, building up a full local history over time. History will accumulate from the point you first installed and used the app — sessions before that cannot be retrieved.

Why are some sessions shown with a moon and some with a bolt?

Sessions with a moon icon occurred during your off-peak window (typically 23:00–06:00). Sessions with a purple bolt occurred outside the off-peak window but were still charged at the smart charging rate — EDF charges all smart sessions at the off-peak rate regardless of the time slot. Boost sessions are shown with a flame instead. You can filter your history by All, Peak, Off-peak or Boost from the filter icon at the top of the screen.

Can I edit a completed session?

Tap a completed session to open its edit page, where you can adjust the location and kWh value. Changes are saved automatically as soon as you leave the page — there's no separate save button.

How do I remove a session from my history?

Open the session's edit page and tap Remove session, then confirm. This permanently hides the session from your local history, even if EDF's servers still report it on a future refresh.

Are the cost estimates accurate?

Each session is costed against the unit rate that applied on the day it happened, not today's rate. SmartGo Charge keeps a record of which tariff agreement you were on for each date, along with a snapshot of that agreement's rates, so a session from six months ago is still priced correctly after you switch tariff or after EDF changes its prices.

They remain estimates. Your actual bill may differ due to standing charges, mid-period tariff changes, or other adjustments applied by EDF. Always check your official EDF Energy bill for accurate figures.

Why did old session costs change after an app update?

Earlier versions costed every session at your current off-peak rate. From v1.1.1 onwards, historical sessions are re-costed against the rate that was actually in force at the time, so some older figures will have shifted. The newer figures are the more accurate ones.

Usage

What does the Usage tab show?

The Usage tab charts your household electricity consumption over a Day, Week or Month, with each bar broken down by rate type:

Peak — consumption at your normal day rate
Off-peak — consumption inside your off-peak window
Smart — consumption during a smart charging session
Boost — consumption during a boost charge

Tap or drag on the chart to see the figures for an individual half-hour slot or day. On the Day view, a breakdown table below the chart lists every half-hour slot with its rate type, kWh and cost. Swipe with two fingers anywhere on the Day view to quickly move to the previous or next day. The totals shown separately from the chart give usage cost and standing charge.

Why is my usage data missing or delayed?

Half-hourly consumption comes from EDF and typically lags by a day or so, depending on how often your smart meter reports. If you want same-day figures, connecting a Glow Display and CAD fills the gap (see below).

Usage figures are estimates supplied by EDF's API. SmartGo Charge is not responsible for inaccurate or missing meter data.

Glow Display and CAD

What is the Glow Display and CAD connection for?

Glowmarkt is an optional, independent source of smart meter data. Connecting it does two things:

Fills gaps in recent consumption that EDF has not published yet, so today's usage appears sooner — this always comes from Glowmarkt's cloud API, using your half-hourly and daily readings
Live current — the Dashboard shows a near real-time power reading, sourced over MQTT (fastest) from a Glow Display and CAD on your home network or a cloud-based broker, or from Glowmarkt's cloud API as a fallback

It is entirely optional. SmartGo Charge works fully without it — you simply wait a little longer for usage figures.

How do I connect it?

Go to Settings → Data Sources → Glow Display and CAD and enter your Glow account credentials. Your Glowmarkt credentials are stored in the iOS Keychain, exactly as your EDF credentials are, and are only ever sent to Glowmarkt's own API.

The live current reading isn't showing

Live current is available from anywhere, including away from home over mobile data. SmartGo Charge gets it two ways: over MQTT (fastest, bypassing Glow's servers entirely) — directly from a Glow Display and CAD when you're on the same home network, or from anywhere if you've configured a cloud-based MQTT broker — and from Glowmarkt's cloud API as a fallback when MQTT isn't configured or hasn't reported a reading yet, so remote readings are still live current, just via the API rather than MQTT. MQTT only ever carries this live current reading — your half-hourly and daily usage figures always come from Glowmarkt's cloud API, regardless of whether MQTT is configured.

If nothing is showing at all, check your Glow Display and CAD is powered on and your Glowmarkt credentials are still valid in Settings → Data Sources → Glow Display and CAD
On your home network, also check the device is connected — local MQTT gives the quickest updates, but the app will fall back to the cloud API if it can't reach it
Away from home, live current still works via the cloud API automatically; for MQTT speed away from home too, you'll need to point the app at a cloud-based MQTT broker rather than your local one

Backup & Restore

Why should I back up?

Your charging history lives on this device, not in your EDF account. EDF only serves a short recent window of sessions, and unit rates disappear from their price feed once a tariff retires — so once history is gone from your device, it exists nowhere else. A backup is the only way to carry it to a new phone or recover it after a reinstall.

How do I make a backup?

Go to Settings → Backup & Restore → Back Up Data. The app writes a JSON file and opens the iOS share sheet, so you can save it to Files or iCloud Drive, AirDrop it, or email it to yourself.

What's in a backup file?

Charging sessions, boost records, your tariff agreement history and the unit-rate snapshots used to cost old sessions. The screen shows a live count of each before you export.

A backup never contains your email address, password or session token, and it does not include your account number, MPAN or cached tariff details. Those all repopulate from EDF the next time you sign in. This is deliberate — the file leaves your device, so nothing that could identify your account or your address is written into it.

How do I restore?

Go to Settings → Backup & Restore → Restore from Backup and pick the file. Restoring is additive: anything missing is added, and sessions already on the device are kept. It will not overwrite edits you have made since the backup was taken.

Can I restore a backup onto a different phone?

Yes. Install SmartGo Charge on the new device, sign in with your EDF credentials, then restore the file. Because credentials are not in the backup, you sign in yourself — the file only carries your history.

Notifications

What notifications does the app send?

Planned sessions — sent when new charging sessions are added to your schedule (not when existing ones are updated or removed)
Completed sessions — sent when new completed sessions are detected after a background refresh

You can enable or disable each notification type individually in Settings → Notifications.

I'm getting notifications when nothing has changed

If you experience this, please contact us using the email below with a description of when the notification appeared. We use session start and end times to detect genuine changes, so spurious notifications should be rare.

Why is there a badge number on the app icon?

The badge shows the number of planned charging sessions currently scheduled. It clears automatically when you open the app.

Tariff & Rates

Where does the tariff information come from?

Tariff rates (unit rate and standing charge) are fetched from EDF Energy's public products API. No personal data is sent for this request. Rates are cached and updated each time you refresh.

My tariff rate looks wrong

Rates are fetched based on the tariff code associated with your EDF account. If you have recently changed tariff, try refreshing your account data via Settings → Data Sources → EDF Energy → Refresh Account Data. If rates still look incorrect, please check your EDF online account for the current rates and contact us if there is a persistent discrepancy.

Account & Data

How do I delete all my data from the app?

Go to Settings → Backup & Restore → Delete App Data. This permanently removes all credentials, cached account information, and charging history from your device. Your EDF Energy account is not affected. It sits on the Backup & Restore screen on purpose — back up first and you can get your history back afterwards.

What's the difference between Log Out and Delete App Data?

Log Out (Settings → Log Out) clears your saved email, password and session token only — your charging history stays. Delete App Data removes everything, including history.

Does deleting app data close my EDF account?

No. SmartGo Charge only removes data stored locally on your device. Your EDF Energy account, tariff, and smart charging registration remain unchanged. To close your EDF account, contact EDF Energy directly at edfenergy.com/contact.

Is my password stored securely?

Yes. Your email and password are stored in the iOS Keychain with kSecAttrAccessibleWhenUnlockedThisDeviceOnly protection. This means they are encrypted by the operating system, cannot be accessed when your device is locked, and are not included in iCloud backups or device backups.

Troubleshooting

The app won't sign in

Check your email and password are correct by signing in at edfenergy.com
If you recently changed your EDF password, go to Settings → Log Out and sign in again — this clears the saved credentials without touching your charging history
Check your internet connection

The app is showing old data

Pull down on the main screen to refresh. The app also refreshes automatically in the background every 15 minutes when not in use. If data is still stale, check your internet connection and try again.

Does the app work without an internet connection?

Partly. Your charging history, tariff agreement history and stored unit rates are held on the device, so past sessions and their costs still display and remain correctly priced while offline. Anything that needs a live call to EDF — refreshing the schedule, boosting, suspending or resuming smart charging — will fail until you are back online.

Background refresh doesn't seem to be working

Go to iPhone Settings → General → Background App Refresh and ensure it is enabled for SmartGo Charge
iOS may limit background refresh if your device is in low-power mode or battery is low
The system controls exactly when background refreshes run — the app requests a refresh every 15 minutes but iOS may delay or batch these

Credits

If you're looking for Home Automation modules for your own EDF Energy setup, thanks to Steve Kirtley, who researches and maintains the Home Assistant integration for EDF Energy — click here to check it out.

Contact

If you have a question not covered here, or have found a bug, please get in touch. If you're reporting a problem, you can optionally attach a debug backup export from the app's Settings screen.

Remember: SmartGo Charge is an unofficial app. For anything related to your EDF Energy account, billing, or tariff, please contact EDF Energy directly at edfenergy.com/contact.