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</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=EN-CA link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>Thanks Paul for sharing.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>></span>Subject line changed because this is NOT about WBT. But from a message (found below) by Crispin about the WBT measurements, the following comment should be considered by those who have involvement with Gold Standard (GS) and CDM measurements. Crispin wrote:<br><br><br><o:p></o:p></p><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>>>....the performance of the [stove] under investigation has to be reported correctly with respect to fuel consumption from the supply, because that is how the Gold Standard and CDM and most projects conceive of it. They have been using the heat transfer efficiency proxy which is quite misleading for a lot of stoves. The more char typically produced, the more misleading the rating, and the scale of the error runs to more than 200% of value.</span><o:p></o:p></p></blockquote><p class=MsoNormal><span style='color:#1F497D'>></span>This relates (I think) to the GS and CDM issues about whether or not char-production and sequestration of carbon as biochar should be factored into the GS and CDM calculations and rewards about carbon-related projects.<br><br><span style='color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>What needs to happen is that those involved in the use of remnant char should decide what metrics they want – for example, energy content, carbon content, mass or carbon relative to initial mass of carbon, things like that.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>Then we can incorporate the metrics in a performance and fuel consumption report.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>What is critical is that the stove is rated for doing something it does, not something it does not do. Creating char is something ‘it does’ but is not part of the standard performance metrics or expectations of a lot of programmes.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>It is quite easy to create a separate format for reporting and following the useful and unused energy along different energy paths. This is faithfully done in power stations where tiny changes in losses mean big savings. A comprehensive energy audit and thermal performance of say, a sugar factory, will find many places where efficiency can be increased. Such a systems analysis has many separate elements. A stove is a separate element within an energy path that might include fuel harvesting, preparation, intensifying/concentrating, combustion, and disposal (waste).<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>All very interesting and necessary as people take an interest in char and what happens to it.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>Regards<br>Crispin<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p> </o:p></span></p></div></body></html>