Trip energy is estimated from usable battery percentage and assumed capacity; it includes energy used while parked within a trip window. Unknown readings are excluded from efficiency. FSD coverage may be incomplete. Charging spend and driving energy cover different events. Trips are assigned to their UTC start date.
Tesla Logbook
Fleet operations · Jarvis & Sparky
FLEET SUMMARY — selected period · recorded-trip miles
Fleet miles
4,568 mi
Known energy estimate
256 kWh
Electric cost
$790
Gas savings
—
FSD
—
Efficiency
537 Wh/mi
Range retention
97%
INSIGHTS
- Trip coverage is incomplete or charging costs are unknown; savings cannot be established.
- Jarvis accounted for 72% of miles driven in this window.
- Average efficiency declined 14% vs the prior 30 days.
- Observed range estimates changed by less than 2% for the selected vehicles.
VEHICLE STATUS — live · click a vehicle to filter
Jarvis
2024 Cybertruck Dual Motor
TODAY
15.3mi
7.8kWh
542 Wh/mi
LAST TRIP (Oct 12 11:37 - 13:00)
6mi
4.3kWh
711 Wh/mi
Last: Unplugged
~222 mi
Avg 554 Wh/mi
Range retention 97%
🏠 539.4623692229 kWh • 64 sess
$609.22
Sparky
2022 Model Y Long Range
TODAY
0mi
0kWh
LAST TRIP (Oct 7 14:10 - 14:58)
8.1mi
3.2kWh
396 Wh/mi
Last: Plugged
~211 mi
Avg 443 Wh/mi
Range retention 100%
🏠 137.6376307771 kWh • 28 sess
$165.45
HOME CHARGER
Oct 2026 · wall only
306.5kWh
$39.84power bill
21 home sessions
$0.13/kWh
MONTHLY HOME SPEND · LAST 12 MONTHS
FLEET MAP — operational display · hover a route
Jarvis
Sparky
Filters above apply here · click a line for trip details
COST & SAVINGS — home wall + Tesla bills vs gas
Home electric
—
measured
Super / other
—
estimated
Same miles on gas
—
what gas would cost
Charging vs gas baseline
—
charging spend comparison
PERIOD TOTALS
Full history for selected filters
—
—
—
—
—
—
LONGEST RECENT TRIP
Loading best drive…
Tap to open
FSD & COST COMPARISON — selected period
Charging vs gas baseline
Calculating…
FSD Usage
Calculating…
RANGE RETENTION — vs best observed; not a battery health test
Jarvis
2026-10-05
97%
309 mi
318 mi
2.8%
-1.1%
—
Sparky
2026-09-17
100%
267 mi
268 mi
0.3%
+0.1%
—
Trip analytics · fleet compare · FSD detail · coaching · Superchargers · places
FLEET COMPARE — side by side for selected period
Loading comparison…
FSD ANALYTICS — usage depth for selected period
EFFICIENCY COACHING
- Loading tips…
SUPERCHARGER STOPS — Tesla invoices when matched · otherwise estimated
| When | Vehicle | Place | kWh | Cost | $/kWh | Min | Avg kW |
|---|---|---|---|---|---|---|---|
| Loading… | |||||||
PLACES — clustered destinations
Loading places…
More charts · rolling 12 months · efficiency · cost vs gas · monthly · battery
These charts show the last 12 months for the selected vehicle. Miles are recorded trips; trip energy is estimated from SOC. Charging spend covers all recorded charging and is not a matched driving-cost estimate when trips are missing. Daily buckets use UTC. Vehicle home costs are allocated estimates.
Efficiency Trend Wh/mi · rolling 12 months
Charging Spend vs Recorded-Mile Gas Monthly $ · rolling 12 months
Monthly Distance Miles & electric spend · rolling 12 months
Battery Snapshot Full-pack range · rolling 12 months