Principles of Green Software Engineering

Green Software Engineering is an emerging discipline at the intersection of climate science, software practices and architecture, electricity markets, hardware design, and data centers.

The Principles of Green Software Engineering are a core set of skills to define, build, and run green sustainable software applications.

This short talk introduces the eight principles that shape it to bring a shared understanding of what it means to be green.

Transcript

1. Francesco Fullone https://linkedin.com/in/fullo Principles of Green Software Engineering what are and how they impact
2. Triple Bottom Line coping with sustainability complexity Sustainability is the capacity to endure. Meet[ing] the needs of the present generation without compromising the ability of future generations to meet their needs” (UN, WCED, 1987: 43)
3. Triple Bottom Line coping with sustainability software complexity Technical Debt + CyberSecurity + Infrastructure Resilience Impact on the environment + E-waste + Energy Consumption Accessibility, Usability and Inclusion + Business Impact on stakeholders Francesco Fullone https://linkedin.com/in/fullo
4. Let’s focus on the Environment
5. 72.35 Mt of CO2 comparable to carbon footprint of Austria Bitcoin carbon footprint https://digiconomist.net/bitcoin-energy-consumption
6. 43.21 kt as much as the Netherlands e-waste Bitcoin Electronic Waste
7. 0.9% - 1.7% as much as all residential lightning in the US Bitcoin total electric usage in US
9. • Energy proportionality measures the relationship between power consumed by a computer and the rate at which useful work is done • Clean energy is better than that generated by fossil fuels or high-carbon sources • Green Software takes responsibility for its electricity consumption Energy Efficiency don’t waste a single drop of energy and chose the cleanest
11. Hardware Efficiency see it as embodied carbon • Extend hardware lifespan, to amortize carbon in more years • Increase the utilization of devices • Choose public cloud instead of on-premise cloud as it can apply demand shifting as well as demand shaping in a more energy efficient way • Write software optimized for efficient hardware usage
12. c.a. 120 Mln produced between 2019 and 2020
13. Carbon Awareness understand CO2 impacts and emissions • The energy consumed could have different impact in terms of carbon intensity • Geographical location of hardware has an impact on the carbon intensity • Each choice you do (or don’t) is reflected in carbon emissions • Measure and improve
14. Software Carbon Intensity
15. Green Software Principles The six key areas to be aware of • Energy Efficiency: use the least amount of energy possibile • Hardware Efficiency: use the least amount of embodied carbon possible • Carbon Awareness: choose to consume cleaner energy • Carbon Efficiency: emit the lest amount of carbon possible • Measurement: what it can’t be measured, it can’t be improved • Climate Commitments: understand the exact mechanism of carbon reduction https://greensoftware.foundation
16. NET-ZERO! Carbon neutral
17. Green Software Principles as the tip of a pyramid of possibilities
18. Francesco Fullone Sustainability Designer http:/ /linkedin.com/in/fullo pick your pillar