Why a Rp 100,000 PLN token never buys Rp 100,000 of electricity
PPJ comes out of the token first, PPN only touches certain customers, and the admin fee is charged per purchase. Here is the arithmetic, with two real receipts.
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Effective tariff (incl. tax): Rp 1.988/kWh Battery energy: 50 kWh Full-charge cost: Rp 99.423 Estimated range: 333,33 km Electricity cost per km: Rp 298,27 Charging time (0–100%): 7 h 9 min Petrol equivalent: 33,53 km/litre Petrol cost per km: Rp 833,33 Saving per km: Rp 535,07 Saving per 100 km: Rp 53.507Open the full calculator →
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From the blog
GPS coordinate formats explained: decimal degrees vs DMS
Why the same place has three different-looking coordinates, how to read each format, and how to convert between them without losing precision.
Read article →ASCII, Unicode and UTF-8: how text becomes bytes
Why an emoji sometimes turns into question marks, what 'UTF-8' on a save dialog actually means, and the mental model that makes encoding bugs make sense.
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