How to Calculate the Carbon Footprint of Software Products

This post gives a short overview of how a carbon footprint may be calculated for software products. It is loosely based on our scientific paper “Integrating Aspects of Carbon Footprints and Continuous Energy Efficiency Measurements into Green and Sustainable Software Engineering”1.


Call for Papers: Software Engineering Aspects of Green Computing (SEAGC)

The journal SUSCOM (Sustainable Computing: Informatics and Systems) by Elsevier will have a special issue on "Software Engineering Aspects of Green Computing" (SEAGC).

Authors are invited to submit original papers representing their idea and achievements in green computing in and by software and discuss/focus on the software engineering aspects.


Book Review: “Éco-conception web. Les 100 bonnes pratiques”

The last few days, I enjoyed the French paperback “Eco-conception web. Les 100 bonnes pratiques: doper son site et réduire son empreinte écologique” by Frédéric Bordage (“Green web design. 100 best practices: boost your site and reduce your environmental footprint”).


ICT for Sustainability International Conference 2014 (ICT4S 2014 )

ICT for Sustainability

The 2nd International Conference on ICT for Sustainability will be held in Stockholm, Sweden 24-27 August 2014. The conference is organized by CESC, Centre for Sustainable Communications in cooperation with VU University Amsterdam.

Further information visit: http://2014.ict4s.org/


Open Forum: Responsible ICT

Direct electricity use of the Internet is probably around 10% of total electricity consumption, said Jon Koomey Research Fellow at Stanford University.

That surprising fact is a reality that we often deny for the sake of New Technologies: Energy consumption and electronic waste are just the begining. In our digital world, where Internet and electronic devices are omnipresent: Which innovations will allow us to consider a more responsible future in ICT?

If you are concerned about this issue, the European Project KARIM and Cap Digital invite you to participate to the next OPEN FORUM, the meeting place for academic and private expertises and innovative SMEs across Northwest Europe.


Green Code Lab International EcoDesign Software Challenge

27th - 29th November 2013

The Green Code Lab EcoDesign Software Challenge is the opportunity for students of IT related subjects to prove their professional skills in creating ecologically sound software.

During a period of 48 hours, participating teams meet the challenge of optimizing a Java™-based multi-tier open source web application.

The organizers endowed prizes for three winning teams including help on publishing their results online and in scientific publications, but also a study trip and money.

The challenge is open for teams of three to five students. Non-student IT professionals can participate non-competitively.

The event will take place on multiple locations in France, Denmark, Spain, and Germany.

For further information see:

Oracle and Java are registered trademarks of Oracle and/or its affiliates. Other names may be trademarks of their respective owners.


User-Centred Green Web Engineering

On the next friday, 20th September, the correspending paper to the following post will be presented during the annual 43rd annual German conference on informatics (INFORMATIK2013) in Koblenz.
See here for more information about the workshop "Environmental Informatics between Sustainability and Change" (Umweltinformatik zwischen Nachhaltigkeit und Wandel, UINW).

Although the energy consumption caused by the Internet is increasing, the potentials of optimizing online multimedia content and websites in general are not jet focussed on. Indeed, there are different possibilities how web developers as well as user can improve the energy consumption of the Internet:


Energy-efficiency of Mobile Applications

The dissertation of Claas Wilke, research assistent and PhD student at the TU Dresden, focuses on the energy-efficiency of mobile applications (apps) for smart phones and tablet PCs. The major idea is the comparison of mobile applications providing similar services w.r.t. their energy consumption. A central vision is the creation of an app store or market place that provides information on the energy consumption of all applications being sold via this market place.

For the motivational/introductory part of the dissertation he wants to include the opinion of real mobile application users, and want to investigate whether they really care about the energy consumption of mobile applications. Therefore, he is currently conduction a small online survey, consisting of 11 question, requiring about 5 to 10 minutes for completion.

The link to the online survey is: http://survey.jouleunit.org/


Environmental Informatics and Renewable Energies

27th International Conference on Informatics for Environmental Protection - Day 3

The EnviroInfo 2013 in Hamburg closed with a day "full of Green IT" (for me). While the presentations in the first session focussed on the software side, the ones in the second part mainly dealed with hardware aspects. A big topic regarding both sides was the energy efficiency and how to improve it. The presented projects focussed on small and medium sized enterprises and came to the conclusion that there need to be a high support by providing information as well as helpful tools.

Environmental Informatics and Renewable Energies

27th International Conference on Informatics for Environmental Protection - Day 2

This second conference day on EnviroInfo 2013 can be summed up by the title "Green / Sustainable by ICT". Within different contexts the today presented paper deal with the question how we can use ICT to support a "smart world" and how it can be used to capture environmental data.


Environmental Informatics and Renewable Energies

27th International Conference on Informatics for Environmental Protection - Day 1

Starting with some facts to the history of the EnviroInfo Conference that took place for the first time in 1986 this year's conference was opened by Bernd Page in Hamburg. Until now 3.500 papers have been written by more than 8.000 authors regarding different aspects of environmental informatics.

These days the special focus is set on ICT applications for renewable energies besides the whole range of cross cutting topics in the field of environmental informatics. More information about the 118 paper submissions, lectures and workshops can be found here.


Carbon Footprints & Continuous Energy Efficiency Measurements for Green and Sustainable Software Engineering

Our new paper, that Eva will present at the EnviroInfo 2013 in Hamburg, deals with two methods and tools supporting developers by implementing Green and Sustainable Software Engineering:
  • calculating the carbon footprint of a software product based on the principles of Product Carbon Footprints but focussing on the development process of software
  • integrating ongoing energy efficiency measurements of a software product into the development process, based on Continuous Integration and in conjunction with the test driven development approach.
By applying these methods, software developers should be able to take decisions in an environmentally friendly and sustainable way within the software development process. These decisions can directly refer to the process (e.g. necessity of meetings or business trips) or they can be design decisions. Both of them have a direct impact on the environmental and social impacts of the software product.


Greening Software with Continuous Energy Efficiency Measurement

Within the context of the 43rd annual German conference on informatics, Jakob Drangmeister is going to present "Greening Software with Continuous Energy Efficiency Measurement" at the Energy Aware Software-Engineering and Development Workshop (EASED@GI) on the 20th September 2013 in Koblenz. The workshop will be held together with the workshop "UINW - Umweltinformatik zwischen Nachhaltigkeit und Wandel".


Call for Papers: Software Engineering Aspects of Green Computing

There will be a special issue on Software Engineering Aspects of Green Computing of Elsevier's Journal Sustainable Computing: Informatics and Systems (SUSCOM).


The Social Dimension of Sustainability in Requirements Engineering

"The Social Dimension of Sustainability in Requirements Engineering" was presented by Timo Johann at the 2nd Requirements Engineering for Sustainable Systems workshop (RE4SuSy). The workshop is held during the 21st IEEE International Conference on Requirements Engineering in Rio de Janeiro.

The full version of the paper can be accessed here.
All papers of the workshop can be accessed here.


Green Software Engineering with Agile Methods

"Green Software Engineering with Agile Methods", our latest research paper,  was accepted to be presented at the 2nd International Workshop on Green and Sustainable Software (GREENS 2013).

Below, we give a short summary of our paper accompanied by a link to the PDF of the accepted version.

The GREENS 2013 workshop is held as part of the 35th International Conference on Software Engineering (ICSE 2013) on May 20, 2013 in San Francisco, CA, USA.

See also:


Proceedings of the 2nd Workshop Energy Aware Software-Engineering and Development (EASED@BUIS)

The proceedings of the 2nd Workshop Energy Aware Software-Engineering and Development (EASED@BUIS), held in conjunction with the 5th BUIS-Days on April 25, 2013, are available in open access from the Oldenburg Lecture Notes on Software Engineering (OLNSE) repository of the Carl von Ossietzky University, Oldenburg, Germany.

3rd EASED Workshop @GI 2013 -- Extended Submission Deadline

Third Workshop
Energy Aware Software-Engineering and Development (EASED@GI 2013)
September 19, 2013, Koblenz, Germany

Extended submission deadline: May 12, 2013

Initial post: 3rd EASED Workshop @GI 2013

Please note: One of the workshop organizers confirmed that the correct date of the workshop is September 20 and not Sept. 16 as is misleadingly indicated on the workshop's web page.

Further Information:


A Guide for Assessing Greenhouse Gas Emissions Related to Software

The upcoming ICT Sector Guidance document of The Greenhouse Gas Protocol® Product Life Cycle Accounting and Reporting Standard will contain a guide for assessing greenhouse gas emissions of software products. This post gives a short summary of the software related aspects of the current draft.

The guide is available at http://www.ghgprotocol.org/feature/ghg-protocol-product-life-cycle-accounting-and-reporting-standard-ict-sector-guidance.


3rd EASED Workshop @GI 2013

The 43rd annual conference of the society for informatics takes place in Koblenz. From the 16th to the 20th of September, 2013 workshops, seminars, scientific and practically oriented meetings as well as six partner conferences are carried out on the campus of the university in Koblenz. One of these workshops will deal with the topic "Energy Aware Software-Engineering and Development". It will be held on September 20, 2013 in Koblenz.


ICT for Sustainability – The Challenge of Making It Real

The First International Conference on ICT for Sustainability (ICT4S 2013) brought together leading researchers from the technical, natural, and social science disciplines to exchange ideas and discuss about an information society that is able to make sustainable use of limited resources. Based on this aim the conference was clustered around three main topics:
  • Sustainability in ICT
  • Sustainability through/by ICT
  • Societal aspects, economic and political dimensions


Vertatique™ – A top-ranked feed for Green ICT

According to wefollow.com1, Vertatique™ is a top-ranked feed for green ICT, followed closely by ecologee.net, the wiki for environmentally friendly IT.



Proceedings of the ICT4S Conference Published in Open Access

The proceedings of the 2012 conference ICT4S - ICT for Sustainability, held 14-16 February in Zurich, Switzerland are now available in open access from the e-collection of the ETH Zurich.


ITEE 2013 - 6th Conference on IT in Environmental Engineering -- Extended Submission Deadline


The 6th Conference on IT in Environmental Engineering (ITEE 2013) is to be held from July 10-12 2013 at Leuphana University Lüneburg, Germany

Topics of interest include Green IS/IT, Environmental Management Information Systems and are described here in more detail.


Energy Aware Software-Engineering and Development (EASED@BUIS)

The EASED workshop will be held in conjunction with the 5th BUIS-Days: IT-based resource and energy management.

Utilization of mobile and embedded devices, and thus their induced energy consumption, is constantly increasing. Reducing the energy consumption of such devices will not only improve the carbon footprint of contemporary mobile IT usage, but will also extend the device lifetime, improve user acceptance and reduce operational costs.

Next to serious and ongoing efforts in hardware design and on operating system level, software engineering techniques will also contribute to optimize energy consumption by improving software design and software quality. The EASED@BUIS workshop, which follows up the Workshop on Developing Energy Aware Software Systems (EEbS 2012), held at the annual GI Conference in September 2012, provides a broad forum for researchers and practitioners to discuss ongoing works, latest results, and common topics of interest regarding the improvement of software induced energy consumption.


Amortization Periods of Energy Efficient Notebooks

87 years! That's the amortization period of a notebook that is 10% more energy efficient than a usual notebook.

A recent Life Cycle Assessment (LCA) study of the German Federal Environment Agency (UBA) examines the carbon footprint of notebooks and tries to determine the time span after which a notebook should be replaced by a new one seen from an ecological point of view. The study is available in German and English language.

GREENS - 2nd International Workshop on Green and Sustainable Software

The GREENS workshop is held in conjunction with the 35th International Conference on Software Engineering (ICSE 2013) in San Francisco, CA, USA, 20th May, 2013. http://greens.cs.vu.nl/