Difference between revisions of "Standards for Improved Cookstoves"

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For more information on the different tests, in their newest versions: [[Testing_of_Woodfuel_Stoves|Testing of Woodfuel Stoves]]<br/>
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[[File:GIZ HERA Cooking Energy Compendium small.png|left|831px|GIZ HERA Cooking Energy Compendium|alt=GIZ HERA Cooking Energy Compendium small.png|link=GIZ HERA Cooking Energy Compendium]]<br/><br/><!--
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-->{{#ifeq: {{#show: {{PAGENAME}} |?Hera category}} | ICS Supply |'''[[GIZ HERA Cooking Energy Compendium#Designing and Implementing Improved Cookstoves .28ICS.29 Supply Interventions|Designing and Implementing ICS Supply]]''' {{!}} | [[GIZ HERA Cooking Energy Compendium#Designing and Implementing Improved Cookstoves .28ICS.29 Supply Interventions|Designing and Implementing ICS Supply]] {{!}} | }} <!--
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<br/>
  
 
= Introduction =
 
= Introduction =
  
Although many programs aim to improve access to cooking energy, due to logistical constraints monitoring is often restricted to measuring improvements in the quality of stoves. This serves as a proxy for better access to cooking energy, and thus effectiveness of the program.
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Cookstoves vary greatly in technical performance across models and modifications. In order to measure the benefits of improved cookstoves and to allow for comparisons between models, it is necessary to conduct tests. For this, a definition what constitutes an improved cooking stove is mandatory. And only with a harmonized approach and benchmark according to international regulations stove testing becomes significant in an international context and between organizations and labs. That’s why within the last few years international standards are being developed jointly by the international stove community.
 +
 
 +
International standards are desirable to enable a global comparison of stove performances. However, there is a danger that cheap stoves with a low performance in relation to these standards are no longer promoted even though for poor households they could still be a relevant improvement compared to the baseline technology.
 +
 
 +
&nbsp;
 +
 
 +
= The International Standard ISO =
 +
 
 +
In June 2018, the International Organization for Standardization (ISO) published the first international standard for laboratory testing of cookstoves, the [https://www.iso.org/standard/66519.html ISO 19867-1:2018].<ref name="https://www.iso.org/standard/66519.html"> https://www.iso.org/standard/66519.html</ref>
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 +
It has been developed and approved by international experts from 45 countries.<ref name="http://cleancookstoves.org/resources/556.html">http://cleancookstoves.org/resources/556.html</ref>
  
Cookstoves vary greatly in technical performance across models and modifications. In order to measure the benefits of improved cookstoves, define what constitutes an improved cooking stove and to allow for comparisons between models it is thus necessary to conduct tests. For these tests to have significance in an international context and between organisations and labs, it is necessary to harmonise the approach and benchmark according to international regulations.
+
This standard specifies testing and reporting protocols to measure and evaluate emissions, efficiency, safety and durability of cookstoves in a lab setting. It is applicable to stoves used for cooking or water heating in households, small enterprises, and institutions. For solar cookstoves, the provisions of the standard are applicable only for evaluating cooking power, safety, and durability. Based on experience with previous protocols, customization in reporting is possible, while still maintaining harmonization in testing, to cater the need of better reflecting local context and practices.<ref name="https://www.iso.org/standard/66519.html">https://www.iso.org/standard/66519.html</ref>
  
<br/>An overview of current international standards and recent development is given on this page.
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The standard replaces an ISO International Workshop Agreement from 2012. For more information on the history of standard development, see also text below.
  
 +
The accompanying part 2, ''Clean cookstoves and clean cooking solutions&nbsp;– Vocabulary'' gives a precise terminology for cookstove technology and testing. It specifies laboratory measurement and evaluation methods for the particulate and gaseous air pollutant emissions of cookstoves.<ref name="https://www.iso.org/obp/ui/#iso:std:iso:tr:21276:ed-1:v1:en">https://www.iso.org/obp/ui/#iso:std:iso:tr:21276:ed-1:v1:en</ref>
  
 +
A third part, a technical report, will be published in the coming months. It will set voluntary performance targets, or tiers, and provides guidance on how to understand and interpret lab test results.
  
= The Road to an International Agreement =
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Also under development is a guidance on field testing methods for cookstoves.<ref name="https://www.iso.org/standard/66521.html?browse=tc">https://www.iso.org/standard/66521.html?browse=tc</ref>
  
Although there have been several testing methods, minimum technical standards for improved stoves varied across countries and programs, with many countries lacking any sort of technical standards for improved cooking stoves. This, of course, did not help ensure that stoves disseminated with the label “improved” were actually effective. Two well-developed standards were those of Bolivia and Peru.
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&nbsp;
  
Standards [http://cocinasmejoradasbolivia.files.wordpress.com/2012/02/petd-83001-blog1.pdf BOLIVIA] and [http://www.vivienda.gob.pe/dnc/archivos/Estudios_Normalizacion/Normalizacion/normas/ReglamentoGINCocinasMejoradas.pdf PERU] (Spanish)
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= History - The Road to an International Agreement =
  
In 2011, the Partnership for Clean Indoor Air (PCIA) organised a 5-day forum in Lima, Peru, for practicioners and experts on clean and efficient cooking technologies and fuels to exchange knowledge and foster co-operation. A part of this forum involved the signing of the Lima Consensus, a resolution to develop a standardised test protocol for measuring technical performance and a standard for improved cookstoves.
+
Over the last decades, minimum technical standards for improved stoves have varied across countries and programs, with many countries lacking any sort of technical standards for improved cooking stoves. Furthermore, different testing methods made comparisons between different stove models difficult. This, of course, did not help ensure that stoves disseminated with the label “improved” were actually effective.
  
[http://www.pciaonline.org/files/Lima_Consensus_Signed.pdf LIMA CONSENSUS]
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In 2011, the [http://www.pciaonline.org/ Partnership for Clean Indoor Air (PCIA)] organized a 5-day forum in Lima, Peru for practitioners and experts on clean and efficient cooking technologies and fuels. One result of this forum was the signing of the [http://www.pciaonline.org/files/Lima_Consensus_Signed.pdf Lima Consensus], a resolution to develop a standardized test protocol for measuring technical performance and a standard for improved cookstoves.
  
As a way forward, the community agreed to go through the process of developing an agreement in workshops, which would then be certified by the International Organisation for Standardisation (ISO). Based on this consensus, the International Workshop Agreement (IWA) was drafted by PCIA in cooperation with the Global Alliance for Clean Cookstoves (GACC) to be discussed and affirmed in The Hague, Netherlands in February 2012.
+
As a way forward, the community agreed to go through the process of developing an agreement in workshops, which would then be certified by the International Organisation for Standardisation (ISO). Based on this consensus, the International Workshop Agreement (IWA) was drafted by PCIA in cooperation with the [http://cleancookstoves.org/ Global Alliance for Clean Cookstoves (GACC)] to be discussed and affirmed in The Hague, Netherlands in February 2012.
  
 +
After review at the workshop, the revised International Workshop Agreement (IWA) was unanimously approved in February 2012 by over 90 participants from 22 countries. The IWA was a first step towards a formal ISO standard and served as an interim international guideline. The goal was to provide a common and easy-to-understand terminology for governments, donors, investors, and consumers to make decisions about technology options.<ref name="Global Alliance for Clean Cookstoves, http://cleancookstoves.org/about/news/01-01-1990-iwa-tiers-of-performance.html">Global Alliance for Clean Cookstoves, http://cleancookstoves.org/about/news/01-01-1990-iwa-tiers-of-performance.html</ref> For this, performance categories such as fuel use, total emissions, indoor air quality, and safety were developed. For these categories, tiers have been developed, so that stoves can be classified into different quality levels. The tiers range from tier 0 having no improvement over the baseline stove (usually the 3-stone fire) to tier 2 having substantial improvements and tier 4 stretching goals for targeting ambitious health and environmental outcomes. The tiers boundaries are defined by quantitative values determined by laboratory testing, based on the Water Boiling Test (WBT 4.2.3) and the Biomass Stove Safety Protocol 1.1.<ref name="IWA 11:2012 Guidelines for evaluating cookstove performance http://cleancookstoves.org/binary-data/DOCUMENT/file/000/000/6-1.pdf">IWA 11:2012 Guidelines for evaluating cookstove performance http://cleancookstoves.org/binary-data/DOCUMENT/file/000/000/6-1.pdf </ref>
  
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Please note, the tiers were not designed to be combined. There is no “tier 2 stove.” Instead, the indicators are kept separate to provide flexibility for governments and organizations to set different goals. For example, a stove might be “tier 3 for efficiency, tier 2 for indoor emissions, tier 3 for total emissions, and tier 4 for safety.”<ref name="Global Alliance for Clean Cookstoves, http://cleancookstoves.org/technology-and-fuels/standards/iwa-tiers-of-performance.html">Global Alliance for Clean Cookstoves, http://cleancookstoves.org/technology-and-fuels/standards/iwa-tiers-of-performance.html</ref>
  
 +
&nbsp;
  
  
= The International Workshop Agreement (IWA) =
 
  
<br/>After review at the workshop, the revised IWA was unanimously approved on the second day. The agreement includes a framework allowing for the measurement of cookstove performance based on the Water Boiling Test (WBT 4.1.2) as well as resolutions including the development of protocols for more stove and test types, examining health effects and working on including cultural acceptance and behaviour in future work.
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= National Standards =
 +
 
 +
There are several national standards for cookstoves already in place. For example:
 +
 
 +
*Indonesia (2013): [http://cleancookstoves.org/binary-data/DOCUMENT/file/000/000/14-1.pdf Biomass Stove Performance]
 +
*Bolivia (2010): [https://cocinasmejoradasbolivia.files.wordpress.com/2012/02/petd-83001-blog1.pdf Cocinas mejoradas - Condiciones técnicas mínimas de instalación, funcionamiento y de rendimiento]
 +
*Peru (2009): [http://www.vivienda.gob.pe/dnc/archivos/Estudios_Normalizacion/Normalizacion/normas/ReglamentoGINCocinasMejoradas.pdf Reglamento para la evaluación y certificación de la cocina mejorada]
 +
*Uganda (2007): [http://cleancookstoves.org/binary-data/DOCUMENT/file/000/000/11-1.pdf Energy efficiency stoves — Household biomass stoves — Performance requirements and test methods]Kenya (2018): Biomass stoves - Performance requirements (check the [http://onlinecatalogue.kebs.org/webquery.dll?v20=1&v22=1M Kenya Bureau of Standards Online Catalogue])
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*Kenya (2014): Domestic biogas stoves – Specification (check the [http://onlinecatalogue.kebs.org/webquery.dll?v20=1&v22=1M Kenya Bureau of Standards Online Catalogue])
  
 
<br/>
 
<br/>
  
[[File:Performance Indicators IWA.png|center|765px|CURRENT AND PLANNED PERFORMANCE INDICATORS UNDER IWA|alt=CURRENT AND PLANNED PERFORMANCE INDICATORS UNDER IWA]]
 
  
The categories in which performance is currently measured under the IWA are Fuel Use, Emissions, Indoor Air Quality, and Safety.
+
= Further Information =
  
For these categories, a lot of work has gone into developing tiers, so that stoves can be classified into different quality products. These range from tier 0 having no improvement over the baseline stove (usually the 3-stone fire) to tier 2 having substantial improvements and tier 4 stretching goals for targeting ambitious health and environmental outcomes.
+
*The Global Alliance for Clean Cookstoves is leading the whole standardization process and regularly publishes updates: [http://www.cleancookstoves.org/ www.cleancookstoves.org]
 +
*The Global Alliance for Clean Cookstoves offers a FAQ and Stakeholder Guidance document on the new international standard. [http://cleancookstoves.org/resources/556.html http://cleancookstoves.org/resources/556.html]
 +
*The International Workshop Agreement is the interim international guideline for stove performance and part of the ISO process. For the tiers, see pages 10 and 11.<br/>[http://cleancookstoves.org/binary-data/DOCUMENT/file/000/000/6-1.pdf IWA 11:2012 Guidelines for evaluating cookstove performance].
 +
*[http://cleancookstoves.org/binary-data/DOCUMENT/file/000/000/13-2.docx Reporting Form - IWA Tiers and Test Results]
  
These tiers have been agreed on for the Water Boling Test, and a lot of work is being done to standardise tiers for the Controlled Cooking and Kitchen Performance Tests.
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*The Stove Performance Inventory, developed by the Berkeley Air Monitoring Group in partnership with the Global Alliance for Clean Cookstoves, contains data from over 600 sets of performance tests. Berkeley Air Monitoring Group – [http://cleancookstoves.org/resources/201.html Stove Performance Inventory Report 2012]
 +
*For test protocols see also [[Testing of Woodfuel Stoves|Testing of Woodfuel Stoves]] on energypedia
  
 +
<br/>
  
= Further Information =
+
= References =
 +
 
 +
This article was originally published by [http://www.giz.de/fachexpertise/html/2769.html GIZ HERA]. It is basically based on experiences, lessons learned and information gathered by GIZ cook stove projects. You can find more information about the authors and experts of the original “Cooking Energy Compendium” in the [[Imprint - GIZ HERA Cooking Energy Compendium|Imprint]].
 +
 
 +
<references />
  
Energypedia Site: [[Testing_of_Woodfuel_Stoves|Testing of Woodfuel Stoves]]
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<br/>[[GIZ HERA Cooking Energy Compendium|--> Back to Overview GIZ HERA Cooking Energy Compendium]]
  
PCIA Website on Testing, including current test protocols and calculation sheets, as well as a list of testing centres: [http://www.pciaonline.org/testing http://www.pciaonline.org/testing]
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{{#set: Hera category=Cooking Energy System}}
  
The Global Alliance for Clean Cookstoves (GACC) prioritises standards and testing, and regularly publishes updates: [http://www.cleancookstoves.org/ http://www.cleancookstoves.org/]
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[[Category:Peru]]
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[[Category:Cooking_Energy_Compendium_(GIZ_HERA)]]
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[[Category:Cookstoves]]
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[[Category:Indonesia]]
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[[Category:Uganda]]
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[[Category:Kenya]]
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[[Category:Bolivia]]
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[[Category:Standardization]]
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[[Category:Improved_Cooking]]

Latest revision as of 09:26, 14 June 2023

GIZ HERA Cooking Energy Compendium small.png



Cooking Energy System | Basics | Policy Advice | Planning | Designing and Implementing ICS Supply | Designing and Implementing Woodfuel Supply | Climate Change | Extra


Introduction

Cookstoves vary greatly in technical performance across models and modifications. In order to measure the benefits of improved cookstoves and to allow for comparisons between models, it is necessary to conduct tests. For this, a definition what constitutes an improved cooking stove is mandatory. And only with a harmonized approach and benchmark according to international regulations stove testing becomes significant in an international context and between organizations and labs. That’s why within the last few years international standards are being developed jointly by the international stove community.

International standards are desirable to enable a global comparison of stove performances. However, there is a danger that cheap stoves with a low performance in relation to these standards are no longer promoted even though for poor households they could still be a relevant improvement compared to the baseline technology.

 

The International Standard ISO

In June 2018, the International Organization for Standardization (ISO) published the first international standard for laboratory testing of cookstoves, the ISO 19867-1:2018.[1]

It has been developed and approved by international experts from 45 countries.[2]

This standard specifies testing and reporting protocols to measure and evaluate emissions, efficiency, safety and durability of cookstoves in a lab setting. It is applicable to stoves used for cooking or water heating in households, small enterprises, and institutions. For solar cookstoves, the provisions of the standard are applicable only for evaluating cooking power, safety, and durability. Based on experience with previous protocols, customization in reporting is possible, while still maintaining harmonization in testing, to cater the need of better reflecting local context and practices.[1]

The standard replaces an ISO International Workshop Agreement from 2012. For more information on the history of standard development, see also text below.

The accompanying part 2, Clean cookstoves and clean cooking solutions – Vocabulary gives a precise terminology for cookstove technology and testing. It specifies laboratory measurement and evaluation methods for the particulate and gaseous air pollutant emissions of cookstoves.[3]

A third part, a technical report, will be published in the coming months. It will set voluntary performance targets, or tiers, and provides guidance on how to understand and interpret lab test results.

Also under development is a guidance on field testing methods for cookstoves.[4]

 

History - The Road to an International Agreement

Over the last decades, minimum technical standards for improved stoves have varied across countries and programs, with many countries lacking any sort of technical standards for improved cooking stoves. Furthermore, different testing methods made comparisons between different stove models difficult. This, of course, did not help ensure that stoves disseminated with the label “improved” were actually effective.

In 2011, the Partnership for Clean Indoor Air (PCIA) organized a 5-day forum in Lima, Peru for practitioners and experts on clean and efficient cooking technologies and fuels. One result of this forum was the signing of the Lima Consensus, a resolution to develop a standardized test protocol for measuring technical performance and a standard for improved cookstoves.

As a way forward, the community agreed to go through the process of developing an agreement in workshops, which would then be certified by the International Organisation for Standardisation (ISO). Based on this consensus, the International Workshop Agreement (IWA) was drafted by PCIA in cooperation with the Global Alliance for Clean Cookstoves (GACC) to be discussed and affirmed in The Hague, Netherlands in February 2012.

After review at the workshop, the revised International Workshop Agreement (IWA) was unanimously approved in February 2012 by over 90 participants from 22 countries. The IWA was a first step towards a formal ISO standard and served as an interim international guideline. The goal was to provide a common and easy-to-understand terminology for governments, donors, investors, and consumers to make decisions about technology options.[5] For this, performance categories such as fuel use, total emissions, indoor air quality, and safety were developed. For these categories, tiers have been developed, so that stoves can be classified into different quality levels. The tiers range from tier 0 having no improvement over the baseline stove (usually the 3-stone fire) to tier 2 having substantial improvements and tier 4 stretching goals for targeting ambitious health and environmental outcomes. The tiers boundaries are defined by quantitative values determined by laboratory testing, based on the Water Boiling Test (WBT 4.2.3) and the Biomass Stove Safety Protocol 1.1.[6]

Please note, the tiers were not designed to be combined. There is no “tier 2 stove.” Instead, the indicators are kept separate to provide flexibility for governments and organizations to set different goals. For example, a stove might be “tier 3 for efficiency, tier 2 for indoor emissions, tier 3 for total emissions, and tier 4 for safety.”[7]

 


National Standards

There are several national standards for cookstoves already in place. For example:



Further Information

  • The Stove Performance Inventory, developed by the Berkeley Air Monitoring Group in partnership with the Global Alliance for Clean Cookstoves, contains data from over 600 sets of performance tests. Berkeley Air Monitoring Group – Stove Performance Inventory Report 2012
  • For test protocols see also Testing of Woodfuel Stoves on energypedia


References

This article was originally published by GIZ HERA. It is basically based on experiences, lessons learned and information gathered by GIZ cook stove projects. You can find more information about the authors and experts of the original “Cooking Energy Compendium” in the Imprint.


--> Back to Overview GIZ HERA Cooking Energy Compendium