And what you can do about it

As computation has exploded — whether for AI, Bitcoin, or general use — data center energy use is projected to double over just the next two years. In response, load shifting has emerged as a simple yet powerful strategy to unlock myriad benefits. This focus on load flexibility has garnered more attention of late, from […]

Quel est le contenu du guide ? L’obligation de sécurité en matière de traitement de données personnelles, inscrite dans la loi depuis 1978, a été renforcée par le RGPD. Il peut cependant être difficile, lorsque l’on n'est pas familier avec les méthodes de gestion des risques, de mettre en œuvre une telle démarche et de s’assurer que le nécessaire a bien été fait.

Développé en partenariat avec l’ADEME, le nouvel outil "Détecteur CO2", destiné à vulgariser les données carbone, est désormais actif sur notre site. Objectif : permettre à nos lecteurs de mieux se représenter à quoi correspondent les données exprimées en équivalent CO2 dans nos articles, et ainsi mieux comprendre ce qui se cache derrière l'empreinte carbone d’un bien, d’une entreprise ou d’une personne.

Le “Détecteur CO₂” : un nouvel outil de l’ADEME pour les médias et entreprises

In the last couple of weeks, I had some encounters that made me think about the state of ableism. Turns out that despite a lot of slow but …

Le PUE est-il un bon indicateur environnemental : Définittion et mesure

Collective action to implement the PCR Internet Service Provision

Accompagner les designers au développement de produits numériques responsables.

Nincom’s classic 3D sports game in your browser!

Build services that earn trust. IF curates this catalogue to help teams design trustworthy services that work for people.

Our **foundations** series provides an overview of core accessibility considerations. They are a good starting point for visual designers, content designers, interaction designers, and developers when designing and building accessible products and services.

A new study maps albedo change from restoring tree cover and shows carbon-only estimates of the global climate benefits of tree-planting.

Speedrunning a11y in SwiftUI

Véritable fourre-tout, le PDF est un incontournable du Web. L’ennui, c’est qu’il est rarement optimisé (ou pas de façon intentionnelle). Quant à l’accessibilité des contenus, …

In Peru, expansions and an order to pay medical care. In the US, tech companies aren't liable and a copper land swap upheld. In Brazil, regulators ask for help and rare earths gets US credit.

En matière de règles et bonnes pratiques pour créer des services numériques sobres, accessibles et de qualité, une diversité d’approches existe. Plus que concurrentes, ces approches sont, selon les acteurs de ces métiers, complémentaires. C’est le cas de l’écoconception et de l’assurance qualité web. Décryptage.

IAB Europe's first-ever Mapping of Greenhouse Gas (GHG) Estimation Solutions in Digital Advertising presents the range of emissions models currently available. It explains how they may differ and why they may arrive at varying estimates.  GHG emissions associated with the internet, devices, and supporting systems are thought to constitute nearly…

This handbook focuses on designing, developing and hosting software applications with sustainable engineering principles. It provides a concrete translation of broader guidelines into a set of easy-to-follow suggestions and instructions.

Introduction to green software and green ops. Looking at the environmental impact of CommonCrawl and cloud computing in general

Companies with datacenters are procuring significant amounts of renewable energy to reduce their carbon footprint. There is increasing interest in achieving 24/7 Carbon-Free Energy (CFE) matching in electricity usage, aiming to eliminate all carbon footprints associated with electricity consumption on an hourly basis. However, the variability of renewable energy resources poses significant challenges for achieving this goal. We explore the impact of shifting computing jobs and associated power loads both in time and between datacenter locations. We develop an optimization model to simulate a network of geographically distributed datacenters managed by a company leveraging spatio-temporal load flexibility to achieve 24/7 CFE matching. We isolate three signals relevant for informed use of load flexiblity: varying average quality of renewable energy resources, low correlation between wind power generation over long distances due to different weather conditions, and lags in solar radiation peak due to Earth’s rotation. We illustrate that the location of datacenters and the time of year affect which signal drives an effective load-shaping strategy. The energy procurement and load-shifting decisions based on informed use of these signals facilitate the resource-efficiency and cost-effectiveness of clean computing—the costs of 24/7 CFE are reduced by 1.29±0.07 EUR/MWh for every additional percentage of flexible load. We provide practical guidelines on how companies with datacenters can leverage spatio-temporal load flexibility for truly clean computing. Our results and the open-source optimization model can also be useful for a broader variety of companies with flexible loads and an interest in eliminating their carbon footprint. The simulations were carried out with PyPSA — an open-source software framework for simulating and optimising modern energy system: https://pypsa.org/ All code, input data and results are published under an open license. The code to reproduce the experiments is available at GitHub: https://github.com/Irieo/space-time-optimization