Many charging networks offer subscriptions promising lower per-kWh rates. Are they worth the monthly fee?
How Charging Subscriptions Work
The Basic Model
Main Subscription Options
| Provider | Monthly Fee | Ad-Hoc Rate | Subscriber Rate |
|---|---|---|---|
| Ionity Passport | £12.99 | 69p/kWh | 35p/kWh |
| BP Pulse | £7.99 | 69p/kWh | 49p/kWh |
| Gridserve | Free tier | 59p/kWh | 49p/kWh |
| Tesla (non-Tesla) | N/A | 65p/kWh | N/A |
Break-Even Analysis
Ionity Passport
Monthly fee: £12.99
Saving per kWh: 34p (69p → 35p)
| Usage | Monthly Saving | Net Benefit |
|---|---|---|
| 30 kWh/month | £10.20 | -£2.79 (loss) |
| 40 kWh/month | £13.60 | +£0.61 |
| 50 kWh/month | £17.00 | +£4.01 |
| 100 kWh/month | £34.00 | +£21.01 |
Break-even: ~38 kWh/month (~130-150 miles of Ionity charging)
BP Pulse
Monthly fee: £7.99
Saving per kWh: 20p (69p → 49p)
| Usage | Monthly Saving | Net Benefit |
|---|---|---|
| 30 kWh/month | £6.00 | -£1.99 (loss) |
| 40 kWh/month | £8.00 | +£0.01 |
| 50 kWh/month | £10.00 | +£2.01 |
| 100 kWh/month | £20.00 | +£12.01 |
Break-even: 40 kWh/month (~140-160 miles of BP Pulse charging)
Who Should Subscribe
Ionity Passport Worth It If:
BP Pulse Worth It If:
Not Worth It If:
Real User Scenarios
Scenario 1: Home Charger + Occasional Trips
Profile: Charges at home, 1 long trip per month
| Charging | Amount | Cost |
|---|---|---|
| Home | 300 kWh | £75 (EV tariff) |
| Ionity (1 stop) | 40 kWh | £28 (ad hoc) |
Total: £103/month
With Ionity Passport: £14 (40 kWh) + £12.99 = £26.99
Saving vs ad-hoc: £1.01/month
Verdict: Marginal — don't bother.
Scenario 2: No Home Charging, Regular Public Use
Profile: Relies on public charging, mixes networks
| Charging | Amount | Cost |
|---|---|---|
| BP Pulse | 150 kWh | £103.50 (ad hoc) |
| InstaVolt | 50 kWh | £39.50 |
Total: £143/month
With BP Pulse subscription: (150 × £0.49) + £7.99 = £81.49
Saving: £22/month — worth it.
Scenario 3: Regular Long-Distance Driver
Profile: Sales rep, 1,500+ miles/month, rapid charging regularly
| Charging | Amount | Cost |
|---|---|---|
| Ionity | 200 kWh | £138 (ad hoc) |
| Gridserve | 100 kWh | £59 |
Total: £197/month
With Ionity Passport: (200 × £0.35) + £12.99 = £82.99
Saving: £55/month on Ionity alone — definitely worth it.
Aggregator Subscriptions
Octopus Electroverse
How it works: One card/app for many networks
Monthly fee: None — transaction fees apply
Value: Simplicity, some competitive rates
Worth it for: Anyone wanting one payment method across networks
Shell Recharge Card
How it works: Access to multiple networks
Monthly fee: None
Value: Convenience, unified billing
Alternative: EV Electricity Tariffs
Compare to Home Charging
| Option | Cost per kWh |
|---|---|
| Public rapid (ad hoc) | 55-79p |
| Public rapid (subscription) | 35-55p |
| Home (standard tariff) | 24-28p |
| Home (EV tariff, off-peak) | 7-15p |
The best "subscription" is often an EV electricity tariff at home.
EV Tariff Examples
| Provider | Off-Peak Rate | Hours |
|---|---|---|
| Octopus Go | 7p/kWh | 00:30-04:30 |
| EDF GoElectric | 10p/kWh | 00:00-07:00 |
| OVO | 9p/kWh | Varies |
Saving vs public charging: 80-90%
Summary Table
| Subscription | Monthly Fee | Break-Even | Worth It For |
|---|---|---|---|
| Ionity Passport | £12.99 | 38 kWh (~130 miles) | Regular motorway users |
| BP Pulse | £7.99 | 40 kWh (~140 miles) | Those relying on public |
| Gridserve | Free | N/A | Everyone (just register) |
Decision Framework
Subscribe If:
✅ You'll exceed break-even most months
✅ You don't have reliable home charging
✅ The network is convenient for you
✅ You want predictable per-kWh costs
Don't Subscribe If:
❌ You charge mainly at home
❌ You use multiple networks equally
❌ You'd rarely exceed break-even
❌ The subscription locks you into one network
The Bottom Line
Most EV drivers don't need charging subscriptions.
If you have home charging, public charging is occasional — subscriptions rarely pay off.
Subscriptions make sense for:
Best value strategy:
The real cost saving is home charging at 7-15p/kWh, not paying for a subscription to get 35-49p/kWh at public chargers.