For Hobbyists & Makers · EV Range & Efficiency
EV Range & Efficiency for a hydro dam
Built for hobbyists & makers exploring it for fun. Play with real physics and math, no license and no setup — just open and tinker. Simulate a hydro dam live below — adjust the inputs and watch it respond, right in your browser.
EV Range & EfficiencyLive
why speed kills range
Controls
Presets
An electric car's range is its battery divided by its energy use per kilometer. At low speed rolling resistance dominates; at highway speed aerodynamic drag — which grows with the square of speed — takes over, so consumption climbs steeply. That is why an EV goes much farther in the city than on the motorway, the opposite of a gasoline car.
Data Inspector
Consumption54.7 kWh/100km
Range110 km
Efficiency1.8 km/kWh
Governing equation
Reading this result: Around 100 km/h drag is overtaking rolling resistance, so every extra 10 km/h now costs disproportionately more energy, holding range near 110 km.
Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.
More with EV Range & Efficiency
EV Range & Efficiency for a solar farmEV Range & Efficiency for a wind turbineEV Range & Efficiency for a home batteryEV Range & Efficiency for an EV chargerEV Range & Efficiency for a power gridEV Range & Efficiency for a heat pumpEV Range & Efficiency for a gas turbineEV Range & Efficiency for a nuclear plant
Frequently asked questions
- Is this good for hobbyists & makers?
- Yes — this version of "EV Range & Efficiency for a hydro dam" is framed for hobbyists & makers exploring it for fun. Play with real physics and math, no license and no setup — just open and tinker.
- Do I need to install anything?
- No. It runs in any modern browser, free, with no account required.