Reusable protocol tools, public documentation and openly available application code shaped by practical integration problems.
practical protocol engineering
Henrik is actively maintaining a Python DLMS/COSEM library for device integrations over serial and IP transports.
Interoperating with real meters requires more than a standards checklist: sessions, transport, security and data formats all have to work together.
a practical guide to the meter’s local interface
An open guide to Swedish electricity meters’ HAN/P1 interfaces, with protocol information and examples for reading local data.
Swedish electricity meters expose local customer interfaces with differing connectors and protocol conventions; builders need clear, usable guidance to connect their own equipment.
energy prices for automation
A free public-good electricity-price API and analysis site with static JSON endpoints, day-ahead graphs, historical data and push notifications.
Utilitarian Spot was built as a free public-good resource for simpler access to Swedish electricity prices without relying on Nord Pool scraping.