FAQ
What does the EV charging ROI calculator estimate?
Potential charging revenue, electricity cost, and net income from your inputs. The figures are
a model for commercial and workplace sites, not a guaranteed return.
How is monthly or annual income estimated?
The tool derives energy per session (power × time), applies your prices, scales by active bays
and sessions, then rolls up to monthly and annual numbers as labelled. It is a planning
illustration only, not accounting or tax advice.
Is this a guaranteed return?
No. The calculator is an EV charging revenue illustration only. Actual results depend on
tariffs, hardware, usage, business terms and site specifics.
Does this show UK EV grants or OZEV?
The tool can surface indicative funding pointers by UK region. Schemes, caps and eligibility
change. Use our
grants hub
and official sources to confirm. This is not legal advice.
What inputs change the result the most?
Usually: charger kW, time plugged in, sessions per bay, number of active bays, and your
import vs customer kWh prices.
What is the difference between kW and kWh?
kW is the charger’s power. kWh is the energy used over time. The calculator uses both to
build a session-based picture for your EV charging scenario.
Is this for workplaces, retail, or hotels only?
The tool is built for a wide range of UK commercial sites. Choose business type in the form
(hospitality, retail, car parks, and more) to align with your sector. Results still depend on
your own inputs.