# EV Charging Cost and Time Calculator — Ireland

> Separate energy arriving in the battery from energy bought at the meter, and compare annual energy spending on the same driving distance. EUR planning view; stated limitations apply.

Page: https://askcalculators.com/ie/ev-charging/
Definition: https://askcalculators.com/ie/ev-charging/definition.json
JSON Schema: https://askcalculators.com/ie/ev-charging/schema.json
Version: 20.16.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/ie/ev-charging/?unitSystem=metric&batteryCapacity=60&startPercent=20&endPercent=80&wallPower=7&annualDistance=20000&evConsumption=18&chargeEfficiency=90&electricityRate=0.2&fuelConsumption=7&fuelPrice=1.6

## Inputs
- unitSystem: Measurement system; type=select; optional; default=metric; values=imperial|metric
- batteryCapacity: Usable battery capacity, kWh; type=number; required; default=60; min=0.01; max=10000
- startPercent: Starting state of charge; type=percent; required; default=20; min=0; max=100
- endPercent: Target state of charge; type=percent; required; default=80; min=0; max=100
- wallPower: Average sustained wall charging power, kW; type=number; required; default=7; min=0.01; max=1000
- annualDistance: Annual driving distance; type=number; required; default=20000; min=0; max=1000000000000
- evConsumption: Vehicle battery consumption; type=number; required; default=18; min=0.01; max=1000000000000
- chargeEfficiency: Wall-to-battery charging efficiency; type=percent; required; default=90; min=0; max=100
- electricityRate: Electricity price per wall kWh; type=money; required; default=0.2; min=0; max=1000000000000
- fuelConsumption: Comparison fuel consumption; type=number; required; default=7; min=0.01; max=1000000000000
- fuelPrice: Fuel price per volume unit; type=money; required; default=1.6; min=0; max=1000000000000

## Outputs
- batteryAdded: Energy added to battery, kWh; format=number
- wallEnergy: Purchased wall electricity, kWh; format=number
- chargeCost: Modeled charging-session cost; format=currency
- hours: Idealized charging time, hours; format=number
- wallKwh: Annual wall electricity, kWh; format=number
- evEnergyCost: Annual EV charging cost; format=currency
- fuelEnergyCost: Annual comparison fuel cost; format=currency
- energySaving: Annual energy-cost saving; format=currency; primary

## Formula
wall energy = usable battery capacity × state-of-charge increase ÷ charging efficiency.

Inputs are converted to canonical units before evaluating this stated formula.

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.

Notice: Illustrative defaults are not local quotes or verified legal rules. Dated reference components and user-entered assumptions are explicitly distinguished. Professional review is pending.