Welcome to GREENS26!
Visit the GREENS 2026 workshop website for full information on submissions, important dates, topics of interest, and more!
Theme & Goals
The engineering of green software-intensive systems is critical in our drive towards a sustainable, smarter planet. The goal of green software engineering is to apply green principles to the design and operation of software-intensive systems. Green and self-greening software systems have tremendous potential to decrease energy consumption. Moreover, software can and should be re-thought to address sustainability issues using innovative business models, processes, and incentives. Monitoring and measuring the greenness of software is critical towards the notion of sustainable and green software. Demonstrating improvement is paramount for users to achieve and effect change. Analysis of the sustainability of a specific software system requires software that aids developers in weighing the four dimensions of sustainability—economic, social, environmental, and technical—with their attendant trade-offs. The software engineering community must assume leadership in this important challenge. In this workshop, we will explore the theme of “green software engineering for software sustainability” with a goal towards creating actionable outcomes that will affect how software engineering is practiced and taught in the future, in order to help organizations prioritize their sustainability objectives.
Tue 14 AprDisplayed time zone: Brasilia, Distrito Federal, Brazil change
08:00 - 17:30 | Tuesday Quiet RoomSocial, Networking and Special Rooms at Capri V Quiet Room for you to relax or work in a peaceful environment during ICSE 2026. | ||
08:00 9h30mOther | Quiet Room Social, Networking and Special Rooms | ||
08:00 - 19:00 | Tuesday RegistrationSocial, Networking and Special Rooms at Main Entrance Registration for ICSE 2026. | ||
08:00 11hRegistration | ICSE 2026 Registration Social, Networking and Special Rooms | ||
09:00 - 12:30 | Tuesday Morning Child CareSocial, Networking and Special Rooms at Ibiza III Child Care services available during ICSE 2026 to support attendees with children. | ||
09:00 3h30mOther | Child Care Social, Networking and Special Rooms | ||
10:30 - 11:00 | Tuesday Morning BreakCatering at Catering and Exhibition Hall (Europa I to IV) This break will provide an opportunity for networking and relaxation between sessions. | ||
10:30 30mCoffee break | Break Catering | ||
11:00 - 12:30 | GREENS 2026 - Pitch Session 2 / Group DiscussionsGREENS at Oceania VII Pitch Session 2 (5-minute pitch of each paper) followed by breakout group discussions | ||
11:00 10mTalk | The Impact of External Libraries on Software Energy Efficiency and Sustainability GREENS Nabihah Chaudhry LUT University, Salim Kamaludeen Lawal LUT University, Shola Oyedeji LUT University | ||
11:10 10mTalk | Integrating API Energy Profiling into Developer Workflows: The VerdeFlow Prototype GREENS Mbanyick B Joof LUT University, Muhammad Asif Khan LUT University, Shola Oyedeji LUT University , Jari Porras LUT University | ||
11:20 10mTalk | Operationalizing Sustainability through Non-Functional Requirements: A Domain-Oriented Model for Biomedical Software GREENS Livia dos Reis Edinger da Silva Federal University of Health Sciences of Porto Alegre (UFCSPA), Maria Antônia Gómez de Oliveira Maia Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Juliana Silva Herbert UFCSPA - Universidade Federal de Ciências da Saúde de Porto Alegre | ||
11:30 10mTalk | Can We Measure What We Ignore? Rethinking the Individual Dimension of Software Sustainability in Digital Health GREENS Juliana Silva Herbert UFCSPA - Universidade Federal de Ciências da Saúde de Porto Alegre, Livia dos Reis Edinger da Silva Federal University of Health Sciences of Porto Alegre (UFCSPA), Muriel Figueredo Franco Federal University of Health Sciences of Porto Alegre (UFCSPA), Isabel Cristina Siqueira da Silva Federal University of Health Sciences of Porto Alegre (UFCSPA) | ||
11:40 10mTalk | METRION: A Framework for Accurate Software Energy Measurement GREENS Benjamin Weigell University of Augsburg, Simon Hornung University of Augsburg, Bernhard Bauer University of Augsburg | ||
11:50 10mTalk | Beyond Energy Consumption: Accurate Emission Factors for Production Sites GREENS | ||
12:00 10mTalk | Bridging the gap between industry and academia: sustainability in LLM-assisted software engineering GREENS Maja Kirkeby Roskilde University, Pepijn de Reus University of Amsterdam, Ana Oprescu University of Amsterdam, Kalle Pronk Fontys University of Applied Sciences, Qin Zhao Fontys University of Applied Science, Fernando Castor University of Twente, João Paulo Fernandes New York University, Abu Dhabi | ||
12:10 10mTalk | Graphical Interface Model for Empowering Web Application Users to Make Sustainable Choices: a Technology Acceptance Study GREENS Giuliano Marques Bonazzi Instituto Técnológico de Aeronáutica, Jacopo Ammendola Free University of Bozen-Bolzano, Eduardo Guerra Free University of Bozen-Bolzano | ||
12:20 10mTalk | Software Library Energy Meter (SLEM) : An Automated Energy Measurement Tool for Software Libraries GREENS Akilesh P Indian Institute of Technology Tirupati, Shivadharshan S Indian Institute of Technology Tirupati, Rajrupa Chattaraj Indian Institute of Technology Tirupati, India, Sridhar Chimalakonda Indian Institute of Technology Tirupati, Vibhu Saujanya Sharma Accenture Labs, Vikrant Kaulgud Accenture Labs, India | ||
12:30 - 14:00 | Tuesday LunchCatering at Catering and Exhibition Hall (Europa I to IV) Lunch time with a variety of meal options available for attendees, including vegetarian choices. This session will provide an opportunity for attendees to enjoy a meal while networking with colleagues and discussing the day’s events. | ||
12:30 90mLunch | Lunch Catering | ||
14:00 - 17:00 | Tuesday Afternoon Child CareSocial, Networking and Special Rooms at Ibiza III Child Care services available during ICSE 2026 to support attendees with children. | ||
14:00 3hOther | Child Care Social, Networking and Special Rooms | ||
14:00 - 15:30 | GREENS 2026 - KeynoteGREENS at Oceania VII Keynote: Henry Muccini (University of L’Aquila, Italy) Abstract: As Artificial Intelligence (AI) becomes a foundational layer in modern software, the discipline of Green Software Engineering must expand its focus from model optimization to systemic architectural efficiency. This presentation discusses a three-tiered hierarchy of AI sustainability, characterizing the transition from model-bound energy consumption to the emergent, architecture-driven overhead of LLM agents. We begin by examining the broad landscape of Green AI, distinguishing between the inherent energy demands of AI components and the external role of AI as a tool for reducing the energy consumption of traditional software applications. We then transition to a technical analysis of Large Language Model (LLM) inference, where energy expenditure remains largely decoupled from software architecture. The core of our analysis addresses the emergent paradigm of Agentic AI systems. We argue that at this level, energy consumption becomes a highly architectural concern. Unlike standard LLMs, agents rely on iterative reasoning loops and tool-calling mechanisms that necessitate a “Shift Left” approach in the design phase. We investigate, among other factors, the impact of token management and the strategic deployment of Small Language Models. Finally, we present preliminary empirical evidence from a multi-faceted study—comprising a Systematic Literature Review (SLR), practitioner interviews, and an analysis of open-source repositories. Our findings reveal a significant “awareness gap”: while the technical complexity of agents grows, industry practitioners currently prioritize speed and cost savings over sustainability. We conclude by identifying research opportunities and establishing energy efficiency as a first-class citizen in autonomous agent design. Short Bio: I am a Professor of Software Engineering at the University of L’Aquila, Italy, where I lead the FrAmeLab research laboratory, part of the SWEN software engineering research group. My work operates at the critical intersection of software architecture, AI engineering, and sustainable ICT. With over two decades of contributions to the software architecture community, my current research focuses on the systemic architectural efficiency of AI-driven systems. I am specifically investigating the transition from model-centric energy consumption to the complex, architecture-driven overhead inherent in LLM-based agentic systems. Through empirical methods—including systematic literature reviews and repository mining—his team is defining the “Shift Left” patterns required to bridge the current industry awareness gap in AI sustainability. My commitment to the research community is reflected in my service as Chair of the Steering Committee for the IEEE International Conference on Software Architecture (ICSA) and as a member of the Steering Committee for the European Conference on Software Architecture (ECSA) and the Conference on AI Engineering (CAIN). As Associate Editor-in-Chief of IEEE Software, I provide my contribution to the peer-review and dissemination of research that may have an impact on industrial practices. Since 2019, my work has focused on bridging the gap among software architecture, machine learning, and sustainability through participation in international workshops, Dagstuhl seminars, and specialized publications. I earned my Ph.D. in Computer Science from the University of Rome “La Sapienza,” followed by a postdoctoral fellowship at the University of California, Irvine | ||
15:30 - 16:00 | Tuesday Afternoon BreakCatering at Catering and Exhibition Hall (Europa I to IV) Afternoon Break with a variety of beverages and snacks available for attendees. This break will provide an opportunity for networking and relaxation between sessions. | ||
15:30 30mCoffee break | Break Catering | ||
16:00 - 17:30 | GREENS 2026 - Discussion, Presentation of Results, and ClosingGREENS at Oceania VII Breakout group discussions (continuation), presentation of results, and closing session | ||
16:00 90mOther | GREENS 2026 - Discussion, Presentation of Results, and Closing GREENS | ||
18:00 - 22:00 | ICSE Steering Committee MeetingMeetings and BOF Events at Capri IV Dinner will be included for members. | ||
18:00 4hMeeting | ICSE Steering Committee Meeting Meetings and BOF Events | ||
19:00 - 21:00 | ICSE ReceptionSocial, Networking and Special Rooms at Catering and Exhibition Hall (Europa I to IV) A reception for all attendees to network and socialize. Join us for an evening of fun and connection at ICSE 2026! | ||
19:00 2hMeeting | ICSE Reception Social, Networking and Special Rooms | ||
19:00 - 21:00 | ICSE Newcomer ReceptionSocial, Networking and Special Rooms at Europa II A special reception to welcome newcomers to ICSE 2026. Join us for an evening of networking and fun! | ||
19:00 2hMeeting | ICSE Newcomer Reception Social, Networking and Special Rooms | ||
19:00 - 22:00 | |||
19:00 3hSocial Event | Social event GREENS | ||