Spotovka
· v1.0.0
About
Czech spot electricity prices on your wrist. For households on a spot (hourly/15-min) tariff: see at a glance whether electricity is cheap right now — and when today's (or tomorrow's) cheapest window comes.
FEATURES
- Glance: live quarter-hour price in Kč/kWh, colored (green = cheap, amber = normal, red = expensive) + next-8-hours trend sparkline.
- Widget TODAY: live price, 24-hour bar chart with color levels, daily average guide line, current-hour marker, MIN/MAX of the day and the cheapest upcoming window (1-4 h, configurable).
- Widget TOMORROW: day-ahead prices as soon as the market publishes them (~14:00), so you can plan the washing machine, boiler or EV charging.
- Optional price make-up: add your distribution fees (Kč/kWh) and 21% VAT to see the price you actually pay.
- Custom cheap/expensive thresholds, or automatic levels from the source.
- Updates every 15/30/60 minutes via your phone; prices valid the whole day even offline.
DATA & NOTES
- Data: OTE day-ahead market via spotovaelektrina.cz (no account needed).
- Prices are shown in Czech local time (CET/CEST).
- Free. No account. No subscription.
What's new
1.0.0 - 2026-07-28
- First public release: live Czech spot electricity price (OTE day-ahead) on your wrist — live quarter-hour price in the glance and the widget.
- 24-hour chart for today and tomorrow (tomorrow publishes around 2 p.m.), cheapest 1-4 h window from the current hour, MIN/MAX and the daily average.
- Optional distribution surcharge + 21% VAT so displayed prices match your bill.
- Background updates every 15/30/60 minutes; today's chart keeps working offline thanks to the midnight rollover.