EV Savings & Efficiency Widget

Add-on Marketplace UI Widgets
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EV Savings & Efficiency Widget

Description: This compact and intuitive widget visualizes the ecological and financial benefits of your EV charging. It translates your charging data into tangible savings by comparing your electric vehicle’s consumption against a traditional combustion engine.

Key Features:

  • Real-time Metrics: Automatically calculates the estimated range based on your specific EV consumption settings.

  • Smart Conversions: Calculates “Saved Fuel” (in Liters) by comparing EV charging (kWh) against a reference combustion engine consumption.

  • Configurable Parameters: Tailor the widget to your specific vehicle by defining your EV’s efficiency (kWh/100km) and your previous combustion engine’s efficiency (L/100km) directly in the UI.

  • Precise Feedback: Displays all values with one decimal place for higher accuracy in your daily monitoring.

  • Clean Design: Clean F7-card layout that fits perfectly into any energy-focused dashboard.

Configuration Parameters:

  • Last Charge (kWh): Item tracking the last charging session.

  • Total Charged (kWh): Item tracking the cumulative charging history.

  • EV Consumption (kWh/100km): Your electric vehicle’s efficiency.

  • Combustion Consumption (L/100km): Reference fuel consumption of your previous car.

Why use it? It provides immediate feedback on your transition to e-mobility, turning technical data (kWh) into easy-to-understand ecological savings (liters of fuel not burned).

Screenshots

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Version 1.0

Resources

Code: ev_savings_widget.yaml

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I think it should be noted that the number (“saving” etc.) is just fantasy. There are so many factors that decide how much a combustion engine consumes that anything you pick from a “reference table” has very little to do with anything. And, if you’re concerned with “carbon savings”, you should also factor in how the electricity you charge is produced.

But, I guess that to make you “feel good” it might be beneficial.

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Well, I’m not concerned with CO2 savings. And thank you for worrying about how the energy is generated: in my case, the electric car is charged using surplus power.
Anyhow, I compared my specific consumption values for both vehicles based on my average driving profile. So I am not picking something from a “reference table”, don´t know what’s your point with this posting. Not everything has to be viewed from a scientific perspective. -But I am open to constructive suggestions for improvement.