Blue Y

Compare — miles, efficiency & temperature

Miles driven

Efficiency, driving only (kWh/mi)

Average daytime temperature (Finchampstead)

Electricity & charging costs

Electricity used (kWh)

Home Supercharger / network

Charging cost (£) — home estimated at 3.5p/kWh, network is Tesla's actual billed amount

Home (est.) Supercharger / network (actual)

Home charging cost, off-peak only (22:00–06:00, 3.5p/kWh)

A "charge" sums all home kWh from sessions starting in that overnight window — a narrower view than the cost chart above, which covers all hours.

Overnight battery change (00:00–07:00)

Positive = charge lost overnight. Negative = it charged during that window. Nights the car stayed asleep the whole time have no reading to compare, so they're omitted.

Day detail

Pick a date to see its full breakdown.