Tools · Workshop
Small tools.
Real leverage.
A growing collection of focused web utilities — calculators, converters, and helpers built for the kinds of problems I run into daily, on the road and at the bench.
Lane · Personal
Lane · Professional
The workbench · more on the way
Lane · Personal
Finances
Loan tracker with live amortization and extra-payment simulator. Tracks balance, interest, and projected debt-free date across all loans. Solar & energy P&L coming next.
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Lane · Personal
Growatt solar dashboard
Live monitoring of the 25 kW MID-XH installation with ARK battery storage. Animated power flow, today's energy totals, historical charts.
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Lane · Personal
Tesla fleet
Live telemetry for both Model 3s via Tessie — SOC, range, charging, climate, tires, battery health, drives & charges. Remote controls behind password.
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Lane · Professional
Work log
Auto-stitched work hours and commute log from Tessie drive data across both Model 3s. Heat map, monthly totals, reimbursement calc, Copenhagen-trip classifier.
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Lane · Professional
Unit converter
Pressure, temperature, flow, mass and energy units for refrigeration and HVAC work. Bar ↔ psi, °C ↔ K, kg/h ↔ m³/h, kWh ↔ MJ.
Coming soon→
Lane · Professional
CO₂ saturation table
Subcritical and transcritical CO₂ properties at given pressure or temperature. Saturated vapour, liquid density, enthalpy — instant lookup.
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Lane · Personal
Solar yield estimator
Predict expected daily and annual yield from panel kWp, location, tilt and orientation. Compare against measured production.
Coming soon→
Lane · Personal
EV charging cost
Calculate charging cost from your tariff schedule. Solar surplus vs grid, AC vs DC fast-charging, per-km running cost for any EV.
Coming soon→
Lane · Personal
QR code generator
Paste any text or URL, get a downloadable PNG. Adjustable size, margin, foreground colour, and error-correction level.
Coming soon→