2026-04-17 Thomas Koopman, my PhD student, will defend his thesis on 7 May. The title of his thesis is "On Hardware-Agnostic Programming for Parallel Architectures". Best of luck with the defense, Thomas!
2026-04-07 Based on a recent outage at the Ikea, I proposed a digital fire drill to prepare better for such outages. This was covered by both Omroep Gelderland and Radio 1 (clip starts at 1:13).
2026-04-02 I was interviewed by Vrij Nederland for their article on "AI als paard van Troje" (AI as a Trojan horse) about the risks of AI and how to mitigate them. Read here.
2026-04-01 Lisa, our new PhD student, started. She is working also at the tax service, and our department doing research on how to software systems as used in the tax service use less energy. Welcome Lisa!
2026-03-12 Nemo KennisLink published a podcast with an interview with me about the environmental impact of digitalization, and what people can do to reduce their impact. Listen the episode titled 'Kan alles voor eeuwig bewaard blijven in de cloud?'.
2026-03-12 NOLAI (the Dutch National AI Education Lab) published a post with my research on how to reduce the environmental impact of AI on schools.
2026-01-23 I was interviewed by Volkskrant about the environmental impact of VPN: Surf je echt veiliger met een VPN?.
2025-12-12 I was interviewed by Volkskrant about the environmental impact of AI: Duurzaam internetten, hoe doe je dat? ‘Liever geen AI-foto’s en -video’s’.
2025-11-23 Paper published in Energy and Climate Change: End-users’ capabilities and futures in the Dutch energy transition: the role of data-driven energy technology in social housing. Read in Energy and Climate Change, Volume 6, December 2025, 100225. Written together with Kyra de Korte, Sietske Veenman, Maria Kaufmann, Berber Pas, Arnoud Lagendijk.
2025-11-17 Paper accepted and presented at BENEVOL 2025: Pseudonymization as a Service: Compartmentalizing and Controlling Data Processing in Evolving Systems with Micropseudonymization together with Job Doesburg and Erik Poll.
2025-11-10 Victor started as PhD student in the Software Energy Lab, working on energy efficient AI algorithms. Welcome Victor!
2025-11-03 I was interviewed by Omroep Gelderland: Nexperia-crisis werpt schaduw over samenwerking met Radboud en HAN.
2025-11-02 I was interviewed by Omroep Gelderland: Toekomst van Nexperia onder hoogspanning, maar 'alles is beter dan niets'.
2025-10-17 I was mentioned in the news article of Omroep Gelderland: Conflict chipfabrikant raakt wereldwijde auto-industrie (about the semiconductor crisis).
2025-10-10 Published paper: VQhull: a Fast Planar Quickhull with Thomas Koopman, Jordy Aaldering, and Sven-Bodo Scholz.
2025-07-24 Vacancy online for a PhD position on Predicting the Energy Consumption of AI Algorithms in the Software Energy Lab, funded by the Growthfund NOLAI. Supervisors are Bernard van Gastel, Mart Lubbers, and Sven-Bodo Scholz. Deadline is 7 September.
2025-06-30 I will be speaking at the scientific festival Oneindig Thursday 11 September about the impact of digitalization on the environment. See here for more info.
2025-06-25 I gave two presentations: at IT Circle on working together with different IT roles for green software (online, 25-6), at the HAN for their IT department (16-6).
2024-06-24 I was interviewed by Trouw for the Podcast Wat Wel Kan (What Is Possible), in Dutch, about what people can do digitally to reduce their impact on the climate. Listen here.
2025-06-23 I was interviewed by Vox about the sustainability of AI and IT, and argues for evaluating the complete impact of software, including ethical, safety, and privacy concerns alongside the environmental impact. Read here.
2025-06-14 I was invited to talk at the Digital Summit of PvdA and GroenLinks on policy changes that are needed to make sure we, as a society, digitalize in a sustainable and responsible way.
2025-05-26 Together with the technical team at NOLAI that I'm supervising, we published a white paper (in Dutch) on how to set up a generative AI system to experiment with AI within your own organization. See here.
2025-05-23 I gave three keynote/presentations this week: at CompSys 2025, at the alumni evening of the management faculty, and the circular innovation hub.
2025-05-22 de Gelderlander published an interview with me on the closing of some of the semiconductor factories in Gelderland.
2025-05-22 New publication online: Job Doesburg, Pascal van Gastel, Bernard van Gastel, Erik Poll: Data Processing Diagrams: A Modeling Technique for Privacy in Complex Data Processing Systems. 2024. In Privacy and Identity Management. Generating Futures.
2025-05-21 I put a new infographic about green software strategies online.
2025-04-23 I will give a keynote on the environmental impact of software at CompSys 2025.
2025-03-13 Vacancy online for the PhD position Sustainability of Scalable AI in the Software Energy Lab, funded by the Growthfund NOLAI. Supervisors are Bernard van Gastel, Mart Lubbers, and Sven-Bodo Scholz. Deadline is 14 April.
2025-03-13 I was interviewed by Omroep Gelderland about how the trade war is affecting local companies and sustainable digitalization.
2025-03-12 I was interviewed for the NOS op 3 explainer about the need for a Dutch GPT model
2025-03-08 I was nominated by my co-workers for the most sustainable teacher of the year award nationwide. Read my nomination here: Duurzaam Docent van het Jaar 2025: Bernard van Gastel. I am very honored by this nomination by my co-workers!
2025-02-17 I was interviewed in the podcast 'Leven na de Groei', episode 32 about the hidden impact of the digital world.
2025-02-11 I was interviewed on the national radio (Nieuws en Co on Radio 1, in Dutch) about (the lack of) sustainability during the AI Action summit that took place in Paris. The fragment starts at 0:40:47
2025-02-05 Interviewed by Omroep Gelderland about the Dutch chip industry.
2025-01-20 Interviewed by NTR Wetenschap (Science department of the national broadcaster) on the water use by ChatGPT. Watch it on Instagram (in Dutch).
2024-12-18 Published blog post, together with the company Tweede Golf about Power consumption of an experimental webserver.
2024-11-22 I got funding for a PhD position on the sustainability of scalable AI. The vacancy will follow.
2024-10-15 I am co-teaching in CHARGE, a 3-day course designed for data professionals working in the energy transition. Professionals will learn about advanced data analysis techniques (time series analysis and network science), and I'm teaching the ethical and sustainability part together with Luca Consoli. There are still a few spots left.
2024-09-30 Participated in a panel discussion on the interaction between business, government, society, and academia at the Nationale Conferentie Duurzame Digitalisering (NCDD).
2024-09-25 A podcast about my research on sustainable digitalization is out, and can be listed to (in Dutch).
2024-07-19 Publication is out, together with Jordy Aaldering and Sven-Bodo Scholz. It is about type-patterns for programming languages, allowing for improved code quality and efficiency gains for compute intensive applications.
2024-07-03 I was interviewed by Trouw (in Dutch) on the rising carbon emissions by Google and Microsoft due to the increasing use of AI.
2024-06-24 I presented an invited talk at the first workshop on Sustainable Privacy-Enhancing Technologies (SusPETS) at ICT4S 2024. My presentation was about the energy consumption of privacy-enhancing technologies.
2024-05-21 A vacancy for a software developer in our national growth fund team is open. Our growth fund project is called NOLAI and is about responsible use of AI in primary and secondary education. Deadline is 4 June.
2024-04-10 SIDN Fund published a call on sustainable internet. I'm on the committee judging the proposals.
2024-04-04 Gave a workshop on sustainable IT during the national day for sustainability professionals of higher education institutions. We identified the main challenges and opportunities.
2024-03-27 Our report on the CO2 emission of air photography of the Dutch government and the data it generated has been published (in Dutch).
2024-03-19 Together with Marie-Sophie Simon (a master student of our program), I gave a talk at the Education days of the Radboud University on how to make your teaching more sustainable, on how we are co-creating our course on Sustainability and IT. They even made a short film about it.
2024-03-16 Interview on Radboud Recharge about the digital clean up day, and how to manage datasets more sustainable.
2024-03-11 Forthcomming: book chapter in Dialogues in Data Power: Shifting Response-abilities in a Datafied World, titled 'In/visibilities in Data Studies: Methods, Tools and Interventions', authored by Miriam Fahimi, Petter Falk, Jonathan W. Y. Gray, Juliane Jarke, Katharina Kinder-Kurlanda, Evan Light, Ellouise McGeachey, Itzelle Medina Perea, Nikolaus Poechhacker, Lindsay Poirier, Theo Röhle, Tamar Sharon, Marthe Stevens, Bernard van Gastel, Quinn White and Irina Zakharova'.
2024-01-04 Interviewed by Binnenlands Bestuur (in Dutch) on how the Dutch governement forgets IT for its climate goals and Business Insider on how the Dutch governement forgets IT for its climate goals: higher data usage of computers using AI and archiving requirements.
2023-12-06 Interviewed by ANS (in Dutch) on the size of our digital footprint.
2023-12-01 Interviewed on Radio 1 (in Dutch) to answer questions on the effect on sustainability of Google deleting old accounts.
2023-11-28 Interviewed by KennisLink for an article on sustainable data storage, published on 17-11-2023.
2023-11-22 Interviewed on Radio 1 (in Dutch) to answer questions on how much water ChatGPT costs to answer questions.
2023-11-14 A paper titled 'The organizational hurdles of structurally reducing the energy consumption of software', authored by Roy van der Steen and myself, has been accepted at BENEVOL 2023. Presentation is at 28 November, full text forthcoming.
2023-11-03 Interviewed by AG Connect about how organisations can make their IT consume less energy.
2023-11-01 Job Doesburg started on a PhD project to safely reuse a system to store privacy-sensitive data in a new and changing context, supervised by me and Erik Poll. Welcome Job!
2023-10-11 On 7 November, I'm invited as a speaker at the Super Tuesday event of KNVI, the association of information professionals. The event has as theme Green IT (watch back).
2023-10-01 Jordy Aaldering started on a PhD project to save energy by adjusting software behaviour using runtime conditions, supervised by me. Welcome Jordy!
2023-09-25 I co-organized the IPA Fall Days on Sustainable Computing, from 25 until 29 September. One of the computer science graduate schools in the Netherlands, IPA (Instituut voor Programmatuur en Algoritmiek), organized a full week on sustainable computing for PhD students in the Netherlands. I serve as program committtee.
2023-06-29 Vacancy (closing 20 August) for a PhD Candidate (4-5 years) on Assuring Privacy and Security of Research Data. It is part of the new Dutch National AI Education Lab for schools, called NOLAI. NOLAI uses the PEP software developed by me for its central data storage. And this PEP software plays a central role in this PhD project. Read more and apply.
2023-06-15I was interviewed by Trouw (in Dutch) about the new EU AI Act and the sustainability rules that where part of the act. Europa wil AI-techniek beteugelen, ook de grote CO2-voetafdruk ervan.
2023-05-31I was interviewed by KennisLink (in Dutch) about the energy consumption of our online behaviour. 5 vragen over ons online energieverbruik.
2023-05-22I was interviewed by het Financieel Dagblad (in Dutch) about the likely stall in applying/integrating AI due to the energy consumption and the scarcity of energy. Ontwikkeling AI loopt vast op astronomisch stroomverbruik.
2023-04-29 I was interviewed by de Datavakbond (in Dutch) about sustainable digitalization, mainly focusing on energy consumption.
2023-04-24I was interviewed by The Register about a new type of storage device that has build in AI to help protect against Ransomware.
2023-03-23Gave a presentation to 40 IT people of our university about strategies for energy reduction in IT. This is a theme I am going to work more on. More forthcoming.
2023-02-28Co-organized the 3rd Rust meet up in Nijmegen, with talks on correctness and GATs.
2023-02-15Obtained funding for a PhD in energy consumption of software. This can be energy analysis, or software engineering related. Let me know if you are interested.
2023-01-19Installed in the digital ethical committee of my municipality Nijmegen. This is an advisory body under the board (mayor etc) of the city.
2023-01-01Kyra de Korte started on a PhD project on digital technology for the energy transition and is co-supervised by me. Welcome Kyra!
2022-12-31Helped NOSop3 to prepare an explainer about the effects of AI. See it here.
2022-12-19Interviewed by our university magazine Vox about my new role focussing on sustainability of IT and how to incorporate that in our research institute.
2022-12-02Interviewed on national radio (Radio 1, Nieuws en Co) about TikTok and how Chinese employees can access data from European users. In the fragment from minute 34:00 onwards I make the point that there are multiple (mental health) apps were the user data flows to foreign countries, so the problem is not contained to TikTok.
2022-11-18Interviewed in the Volkskrant (in Dutch) about my SSD discovery and the fallout it caused.
2022-11-17Gave a presentation on the Tech&Bites meet-up in Boxmeer about what happens when you hack a SSD, and the disclosure process.
2022-11-16Gave a presentation on the TechCoders meet-up in Utrecht about Sustainability & IT, and the trends in there.
2022-10-27Interviewed for AG connect (in Dutch) about how to make software sustainable.
2022-10-06Interviewed for the Dutch radio in the Atlas show about the privacy implications of data.
2022-10-01Transfer news: today I started at the computer science institute iCIS in Nijmegen, to prepare a larger intiative in sustainability of IT. That includes setting up a research line in the energy consumption of software controlled devices, and integrating sustainability in the courses of computer science.
2022-08-20Helped NOSop3 to prepare an explainer about the algorithms used in TikTok, and their influence. See it here.
2022-07-25 We have 3 vacancies (for 2 years) in iLab for software developers. We have built the PEP repository for safe and privacy friendly storage of data. And now we are going to extend it, so that instead of downloading data and running an algorithm locally users will be able to upload an algorithm to the repository. This is more time and energy efficient than downloading all the data a user wants to work on. Read more.
2022-07-12PhD position available: 'digital technology for the energy transition', read more.
2022-06-16Gave a presentation on sustainability of IT for the Open University of NL Green Office.
2022-05-17Participated in a panel during the 'Groene Peper 2022' about 'Bijvangst en keerzijdes van digitalisering tijdens de lockdowns in het onderwijs' (pro and cons of digitalization in education during lockdowns). See it here.
2022-04-21I was interviewed by AGConnect about how we incorporate sustainability in our eduction. Read more.
2022-03-10Cindy Cloin interviewed me for an article called Elections via the internet? that could easily compromise the freedom to vote, about software used during elections.
2022-03-07Our team got the 2022 Ammodo Science award for fundamental research (in Humanities). Read more.
2022-02-18Grant proposal was awarded: our ERC proof-of-concept project to assess the privacy impact of mental health apps is going to start in one month. Together with TILT from Tilburg (Linnet Taylor and Tineke Broer), Tamar Sharon (from iHub), and I are going to create a dashboard.
2022-02-12A NOSop3 explainer about the Pegasus spy software was published. I gave some factual input on the video (and I'm credited in the description of the video).
2022-02-11The two vacancies for software developers are public now. Lots of Rust, open source, public values.
2022-02-01Predictive policing project with Frederik Zuiderveen Borgesius has started. A PhD candidate, Pieke de Beus, has started.
2022-01-06This site launched.
2021-12-01I am nominated for the teacher of the year award at the faculty of science, where I teach.
2021-09-15Hired 2 software developers and 1 interaction designer for our team.
2021-03-16A podcast about my SSD security research was recorded by NPO 3FM. You can listen it online.
2020-09-01I started at the Radboud University (working full time there now).
2020-06-03An interview with me about COVID tracking apps was published in iBestuur #35 (in Dutch).