Work that spans the whole system.

Python · PostgreSQL · ModbusGas · Energy

Transmission-grid metering integration

Integrated transmission-grid metering data from flow computers into central Swedegas data collection.

Operations

Utilitarian operations for gas DSO meter data collection

Ongoing product operations and support for Utilitarian in gas distribution meter-data collection.

Operations web application · PostgreSQL · RabbitMQGas · Energy

Python · MQTT-SN · NB-IoTHeat · IoT

MQTT-SN heat-meter integration

Production collection and integration of NB-IoT heat-meter data over MQTT-SN into the Zonos metering head-end system.

Field delivery

Corus EVC modernisation

Multi-stage modernisation of Corus electronic volume correctors for Nordion Energi / Weum Gas: protocol implementation, higher readout frequency, external power and a 4G modem rollout.

I-FLAG · 4G · External powerGas · IoT

Python · DLMS/COSEM · UNI/TS 11291Gas · Data

DLMS/COSEM gas meter ingestion upgrade

Upgraded the gas meter ingestion platform to support older and newer DLMS/COSEM variants, encrypted payloads and multiple gas meter families.

Python · Django · AWS LambdaGas · Integration

EVC alarm integration with SOS Alarm

Connected Elster EK280 electronic volume corrector alarms to SOS Alarm through SMS intake and the SOS Access v4 protocol.

Python · Flask · DLMS/COSEMElectricity · Integration

AM550 DLMS/COSEM readout API

Built a Flask API for reading a couple of thousand Iskra AM550 meters through DLMS/COSEM and publishing the readings into an ingestion queue.

NB-IoT · DLMS/COSEM · Smart meteringElectricity · IoT

Next-generation smart meter procurement

Supported E.ON’s next-generation smart meter procurement as a smart meter communication and integration expert.

Raspberry Pi · 4G · USB optical meter probeElectricity · IoT

Real-time EMH meter data integration

Collected real-time values from EMH electricity meters at larger consumers in Malmö and sent the data to E.ON Live.

Research

Sub-minute UH50 heat meter monitoring

Local M-Bus readout from Landis+Gyr UH50 heat meters for E.ON Värme, with sub-minute values sent to InfluxDB and Grafana.

Python · Flask · M-BusHeat · IoT

Research

Flexmeter Hyllie metering platform

Built the backend and integration architecture for the Flexmeter EU-project test site in Hyllie, evaluating Connode 6LoWPAN IP mesh metering with more than 300 meters.

Python · Django · CassandraElectricity · IoT

Django · LwM2M · LeshanIoT · Integration

LwM2M management bridge

Built a Leshan-based LwM2M bridge so a Django management system could control devices without implementing LwM2M, CoAP and DTLS in Python.

JiraHeat · Business systems

District heating process planning

Created a Jira-based process foundation for district heating customer onboarding, planning, installation and verification.

PostgreSQL · RabbitMQ · DockerEnergy · IoT

Multi-utility metering and integration platform

A cloud-native AMR platform for collecting, processing and integrating meter data across protocols, devices and utility operations.

Python · Async Python · MQTT-SNIoT · Energy

MQTT-SN gateway

Initial MQTT-SN gateway implementation for ONE Nordic, serving around 9,000 meters in production.

AI · LLM agents · Web scrapingElectricity · Data

Tariffhub — tariff data and calculation

Structured Swedish electricity-network tariffs and calculation logic turned into a reusable energy-data product.

Python · DLMS/COSEM · HDLCElectricity · Gas

dlms-cosem — practical protocol engineering

Henrik is actively maintaining a Python DLMS/COSEM library for device integrations over serial and IP transports.

Python · IEC 62056-21 · IEC 61107Energy · Electricity

iec62056-21 — local energy-meter readout

Python library for local meter readout over optical, serial and network connections, including HAN/P1 data handling for Swedish electricity meters.

Python · SOS Access v4Integration · Gas

sos-access — alarm integration client

A reusable Python client for sending structured alarm messages through SOS Access v4.

Research

IoT in low-voltage electricity grids

Designed and built a simulation platform to evaluate distributed intelligence and Connode 6LoWPAN mesh communication in low-voltage grids.

Connode 6LoWPAN · Embedded Linux · ArduinoElectricity · IoT

Python · EMH meters · Janitza metersElectricity · IoT

Power quality event collection

Collected power quality events from EMH and Janitza meters for E.ON Live and designed a hardware test bench for repeatable event simulation.

Python · Flask · RabbitMQHeat · Energy

Smart heat AMR integration

Collected smart heat meter data for E.ON Värme and published it into the E.ON Live platform.

Field delivery

Utilitarian FSM — field-service software for meter exchange

Utilitarian FSM is an ongoing Progressive Web App for meter exchange field work, including barcode scanning, image documentation, validation and business-system exports.

Django · Azure · PostgreSQLGas · Business systems

MkDocs · Azure Static Web Apps · SSOEnergy · Business systems

Metering operations documentation system

Ongoing MkDocs-based documentation system for metering operations, deployed as an Azure Static Web App with built-in SSO.

Field delivery

Field test tool for meter connections

Technician-facing Azure Static Web App for verifying the full communication path from modem to meter in the field.

Azure Static Web Apps · Azure Functions · SSOEnergy · Integration

MkDocs · HAN/P1Electricity · IoT

HANporten.se — 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.

Python · GitHub Pages · GitHub ActionsElectricity · Energy

Utilitarian Spot — 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.