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 […]

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

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

Collective action to implement the PCR Internet Service Provision

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

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.

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

Les impacts environnementaux sont la plupart du temps calculés et présentés en suivant l'approche attributionelle, ce qui revient à "attribuer une part du gateau" des impacts à un acteur ou à une unité fonctionelle. L'approche conséquentielle est moins connue, mais parfois bien plus instructive quand aux dynamiques d'impact court terme et long terme. Cet article présente les deux approches et détaille les apports et biais de chacune d'elles.

Mise à disposition du badge DK à ajouter sur les sites web pour afficher une estimation de leur impact en équivalent CO2.

EcoCompute is the first engineering conference on sustainability in hardware & software

Les bonnes pratiques d'hébergement sont désormais encadrées par un texte : le Régime Général d'Eco-conception des Services. Approndissons ensemble le sujet, en commençant par le premier critère évoqué : l'adhésion au Code de Conduite Européen sur les Centres de Données.

More information available at the EU Code of Conduct on Data Centres webpage. CompanyN. Data CentresData CentresYear RegisteredAddressA1 Telekom Austria AG1Wien 1Wien 22012Lassallestrasse 9A1020 -

L’agence Whodunit a contribué à l’automne 2023 à la consultation publique portant sur la nouvelle version du RGESN (référentiel général d’éco-conception