Worked example
If membership costs £10/month and reduces charging from 79p to 65p/kWh, the saving is 14p/kWh. You need roughly 71 kWh of public charging each month before the £10 fee is recovered.
Frequently asked questions
Can I use this for any charging network?
Yes. Enter the PAYG rate, member rate and monthly fee from the network you are considering.
What if the membership includes free kWh?
This version assumes the benefit is a lower p/kWh rate only. If free allowances are included, subtract their value from the monthly membership fee for an approximate comparison.