TLDR: A button to switch off our entire electricity grid? We are creating one with unsecure high-power connected devices. Should we worry about it? The more high power devices (home appliances) are connected to the grid, the more we should worry about our grid stability and the availability of power. We should have cyber security in place before millions of those devices will be added to the grid. The regulation should be done on (at least) the European level.

Image by intographics from Pixabay

What is the Internet of Energy

The Internet of Energy (IoE) is a term for all IT connected producers and consumers (hardware) when it comes to electricity…

TLDR: TinyGS is a project for receiving (and sending) data from satellites 🛰. It’s mainly focused on using LoRa. Because of the low cost hardware, it’s accessible to a lot of people and fun to do! In this blog I describe how it works and what my setup is.

I’ve got all kinds of hobbies. From electronics, stationary batteries, HAM radios, electric vehicles, programming (Python, PHP, C++), cyber security and regular IT nerd stuff.

However, sending messages (speech or data) over the air has always been facinating me. Sending something over kilometers away, and somebody else receiving it, that’s like…

Luckily almost nobody noticed it, but last Friday, 8th of January, at 14:05 CET the whole od Europe was on the brink of a total blackout. Due to an instant loss of energy production, the frequency (see it as the heartbeat of the grid) fell below the critical threshold. Such a high deviation is rarely seen on European grids. The frequency should be as close to 50Hz as possible for a smooth running grid. This time it dropped to 49.74, very close to a catastrophic failure.

Measurement of the frequency at my grid connection at home

If this would’ve happened during the summer, with a lot of solar energy production…

A Home Energy Management System (HEMS) is a system that optimizes the efficiency of a home with respect to energy. It can control the energy usage of smart appliances, the charging of stationary batteries and much more. Also, it can be used in small scale systems like microgrids.

Home storage, or storing energy at home in a static battery, is a way to store the abundance of solar energy or to charge the battery (in the night) with cheaper energy.

The storage can be grid tied (connected to the main grid of the distribution system operator) or off grid, which…

TL;DR: We researched low power communication technologies in order to determine a new way of collecting sensor and location data from assets. Our focus was to create an absolute low power solution, that’s why we choose LoRa to move forward. We did this by designing our own circuit board and writing our own software. All data is later collected in a backend we created ourselves. We used the LoRa device to control the energy consumed by a charge station as a next step.


We see that the way we consume energy changes, and our grid is used differently than it…

TL;DR: We built a proof of concept of how a smart grid could autonomously balance itself, by sharing data in a secure way via IOTA and letting devices decide if they want to help balance or not, but if they do they’ll get a small fee in return. This is all done by the system itself, there is no human interaction needed to run the system.

First of all I would like to thank Ton Smets (software development), Klaas van Zuuren (hardware development), ElaadNL and Enexis for making this great proof of concept possible.

The proof of concept of a fully decentralized autonomous balancing smart grid running on IOTA

Introduction to our vision

In 2017 when we started to…

My wish for 2019 was to create a proof of concept around LoraWAN with IOTA. The obvious thing to do is to store data sent by a LoraWAN device directly into the Tangle. This would be awesome, so… I did!

The LoraWAN device I used bought at AliExpress → Link to the device

The process is super easy. You send a message using LoraWAN and The Things Network, listen to a specific application using MQTT, receive the message and send it to the Tangle using for lightning fast speeds.

I used The Things Network as free backend for receiving the messages. …

On Wednesday the 18th of April ElaadNL released the first charging station in the world where charging and paying can be done with IOTA, in a machine 2 machine way. The charger is part of the new ElaadNL test site. The test site is located in business park Arnhems Buiten (former KEMA site) and contains all types of charging stations that are used in the public area in the Netherlands. This includes a fast charger, a charging island, a battery, two charging lanterns and the IOTA charger.

Harm van den Brink, innovator at ElaadNL and Enexis is charging a mini Telsa on the IOTA charging station at the ElaadNL test site in Arnhem, the Netherlands. (PHOTO available in high resolution at ElaadNL)

The IOTA Tangle is an innovative type of Distributed Ledger Technology (DLT) specifically…


A charge station running on IOTA, for payment of the energy, all communication with the customer via IOTA and storing measurement values (like a smart meter) into the Tangle. It’s awesome, you should read the whole article!

At ElaadNL we are researching and innovating with new technologies. We are currently researching the possibilities of Smart Charging in the power grid. We see that DLTs (Distributed Ledger Technologies) can have real impact on the information flow and security of the grid, because of the possibilities of decentral balancing. Especially in e-mobility we will see these decentralised developments come together before…

Blockchain technology (distributed ledger technology) is hyped nowadays. Every industry is looking at it trying to find out how it can help them streamline their processes. Sometimes the goal is to just use technology because everyone talks about it, but without any real benefit. However, due to the nature of distributed ledger technology a lot of processes in this world can be changed radically, for the better. The same goes for electric mobility, and the infrastructure supporting it.

About distributed ledger technology

A distributed ledger technology (DLT) according to Wikipedia is: A distributed ledger (also called shared ledger) is a…

Harm van den Brink

Cyber security, smart grids, electric vehicles, distributed ledger technology, hardware. Working for Enexis and ElaadNL. Articles on personal title.

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