ISO/IEC 21031:2024 PDF

Name: ISO/IEC 21031:2024 — Information technology — Software Carbon Intensity (SCI) specification
SKU: ISO/IEC 21031:2024
Price: 25 EUR
Availability: InStock

Information technology — Software Carbon Intensity (SCI) specification

Название (английский):

ISO/IEC 21031:2024

Information technology — Software Carbon Intensity (SCI) specification

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 9
Дата публикации:: 22 марта 2024 г.
Издание:: ISO/IEC IS 21031 edition 1 version 1
ICS:: 13.020.40

Тип поставки:

Full version135 €Read online 24h10 €Read online 72h15 €

Язык документа:

ruen

Срок поставки:2 раб. дн. (перевод)

Цена:135 €

Описание (английский):

This document describes a methodology for calculating the rate of carbon emissions for a software system; that is, its SCI score. The purpose of this score is to increase awareness and transparency of an application's sustainability credentials. The score will help software practitioners make better, evidence-based decisions during system design, development, and deployment, that will ultimately minimize carbon emissions. A reliable, consistent, fair and comparable measure allows targets to be defined during development and progress to be tracked.

Abstract

Похожие стандарты

Другие стандарты ISO

Overview

ISO/IEC 21031:2024 - Software Carbon Intensity (SCI) specification - defines a consistent, evidence-based methodology to calculate the rate of carbon emissions caused by a software system (its SCI score). The standard frames SCI as a rate (carbon per functional unit) to increase transparency of an application’s sustainability credentials and to support measurable reduction strategies. It covers both operational emissions (energy use × marginal carbon intensity) and embodied emissions (hardware manufacturing and disposal allocated to the software).

Key topics and technical requirements

SCI as a rate: SCI = (O + M) per R, where O = operational emissions, M = embodied emissions, and R = functional unit.

Operational emissions calculation: O = E × I

E = energy consumed (kWh) for the defined functional unit.
I = location-based marginal carbon intensity (gCO2eq/kWh) - use consequential/marginal rates, not market-based measures.

Embodied emissions: allocate a time- and resource-share of device lifecycle emissions (manufacture, disposal) to software (M).

Procedure for reporting: Bound (define software boundary), Scale (choose functional unit), Define (select quantification method - telemetry or models), Quantify (calculate per-component SCI), Report (disclose score, boundary, and methodology).

Exclusions and principles: Offsets or market-based renewable claims do not reduce SCI; SCI focuses on elimination of emissions and uses location-based marginal rates.

Units and granularity: Energy in kWh; carbon intensity in gCO2eq/kWh; supports diverse scales from single functions to distributed cloud systems.

Applications and who should use it

ISO/IEC 21031:2024 is practical for organizations and practitioners aiming to design, develop, operate, or procure lower-carbon software:

Software developers and engineers - optimize code and runtime efficiency.

AI/ML teams - reduce training emissions via model optimization and hardware choices.

Architects and DevOps - choose architectures (serverless, event-driven), schedule workloads, and implement carbon-aware pipelines.

QA and SRE - measure energy use in testing and production.

Sustainability officers and product managers - set targets, compare baselines, and report SCI scores across products or services.

Cloud providers and vendors - supply granular telemetry or modelled data to support accurate SCI calculations.

Related standards

ISO/IEC 21031:2024 complements broader sustainability and GHG accounting practices. Organizations should consider linking SCI reporting with corporate environmental management frameworks (e.g., ISO environmental standards) and established GHG reporting protocols when aligning software-level metrics with enterprise climate goals.

ISO/IEC 21031:2024 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and who should use it

Related standards

Технические детали

ISO 8689-1:2000

Water quality — Biological classification of rivers — Part 1: Guidance on the interpretation of biological qu…

ISO/ASTM51540-04(2012)

Standard Practice for Use of a Radiochromic Liquid Dosimetry System (Withdrawn 2020)

ISO/ASTM51204-04

Standard Practice for Dosimetry in Gamma Irradiation Facilities for Food Processing (Withdrawn 2013)

ISO/ASTM51431-05

Standard Practice for Dosimetry in Electron Beam and X-Ray (Bremsstrahlung) Irradiation Facilities for Food P…

ISO/ASTM52628-20e1

Standard Practice for Dosimetry in Radiation Processing

ISO/ASTM52921-13(2019)

Standard Terminology for Additive Manufacturing—Coordinate Systems and Test Methodologies

ISO/ASTMTR52917-EB

Additive Manufacturing — Round Robin Testing — General Guidelines

ISO/ASTM52901-17(2023)

Standard Guide for Additive Manufacturing – General Principles – Requirements for Purchased AM Parts