Nathan Bijnens
PresentationsCurriculum Vitae
  • Dec 30, 2022 #Home Assistant #Home Energy Management #Home Automation

    Calculating Degree Days in Home Assistant

    Calculating Degree Days (or Graaddag in Dutch) allows you to benchmark gas consumption in relation to temperature. The formula is quite simple, it uses as reference temperature 18°C minus the average temperature of the day, minimized on 0°C. The concept is based on the idea that the amount of energy needed to maintain a comfortable indoor temperature increases as the difference between the indoor temperature and the outdoor temperature increases. By tracking the degree days, it is possible to estimate how much energy is needed to heat or cool a building and compare it to the actual energy usage.

    This configuration is using the Home Assistant platform to define two sensors: degree_day_daily and gas_m3_per_degree_day. The degree_day_daily sensor calculates the difference between a regularized temperature (18.0°C in this case) and the average temperature reported by the sensor.garden_garden_temperature_noordkant_temperature sensor over the past 24 hours. The gas_m3_per_degree_day sensor calculates the gas usage (as reported by the sensor.gas_delivery_daily sensor) per degree day, which is defined as the difference between the regularized temperature and the average temperature.

  • Nov 27, 2022 #Home Assistant #Home Energy Management #Home Automation

    Flanders/Belgium's Capacity Tariffs in Home Assistant

    Flanders will reform the nettariffs for electricity transport, shifting a larger cost to peak usage. They do this by measuring your average consumption per 15m and the maximum quarter of the month counts as your tariff. Currently information and dashboards from Fluvius are cumbersome to use (CSV export and then leveraging Excel to spot the highest quarter).

  • Jun 14, 2022 #Azure #Data Mesh #Domain Driven Design #Big Data #Knowledge & Data #Architecture

    Data Mesh in Azure at Microsoft Customer Success Day '22

    During Microsoft Belgium & Luxembourg’s Customer Success Day we presented a session on Data Mesh.

  • Apr 18, 2022 #Gmail #Outlook

    Migrating from Google Gsuite/Gmail to Outlook.com

    Since Gsuite (previously Google Apps) is no longer free, and my personal email (nathan.gs) was hosted there I’m looking for alternatives.

  • Dec 12, 2021 #Tuya #IoT #NixOS #Home Automation

    Tuya Cloud: monitoring using bash

    Connecting to the Tuya Cloud, to monitor a set of home IoT devices. Recently I bought a set of Silvercrest/Lidl Homesmart devices.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Nathan Bijnens
  • nathan-gs
  • @nathan_gs
  • Nathan Bijnens
  • Tags
  • BY-NC-SA 4.0

Nathan Bijnens

CEO of Scrydon, building the Cognitive Enterprise, a sovereign AI OS & Decision Intelligence platform. Fascinated with AI, Agentic AI, Big Data, Event Driven Systems, NixOS and home automation. Speaker on AI, Big Data and Spark.