<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:'times new roman', 'new york', times, serif;font-size:12pt"><div>Dear all,</div><div><br></div><div>The investment costs (part paid by the farmer) in Cambodia are as follows:</div><div><br></div><div><table class="MsoNormalTable" border="1" cellspacing="0" cellpadding="0" width="619" style="width:464.4pt;border-collapse:collapse;border:none;mso-border-alt:solid black .5pt;
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<p class="MsoNormal" style="line-height:115%"><span lang="EN-GB">Plant size<o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:115%"><span lang="EN-GB">4 m<sup>3</sup><o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:115%"><span lang="EN-GB">6 m<sup>3</sup><o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:115%"><span lang="EN-GB">8 m<sup>3</sup><o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:115%"><span lang="EN-GB">10 m<sup>3</sup><o:p></o:p></span></p>
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<td width="96" valign="top" style="width:72.0pt;border:solid black 1.0pt;
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<p class="MsoNormal" style="line-height:115%"><span lang="EN-GB">15 m<sup>3</sup><o:p></o:p></span></p>
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<td width="139" valign="top" style="width:104.4pt;border:solid black 1.0pt;
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<p class="MsoNormal" style="line-height:115%"><span lang="EN-GB">Estimated cost
(USD)*<o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:115%"><span lang="EN-GB">400<o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:115%"><span lang="EN-GB">470<o:p></o:p></span></p>
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<td width="96" valign="top" style="width:72.0pt;border-top:none;border-left:none;
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<p class="MsoNormal" style="line-height:115%"><span lang="EN-GB">550<o:p></o:p></span></p>
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<td width="96" valign="top" style="width:72.0pt;border-top:none;border-left:none;
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<p class="MsoNormal" style="line-height:115%"><span lang="EN-GB">625<o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:115%"><span lang="EN-GB">890<o:p></o:p></span></p>
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</tr>
<tr style="mso-yfti-irow:2">
<td width="139" valign="top" style="width:104.4pt;border:solid black 1.0pt;
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<p class="MsoNormal" style="line-height:115%">Subsidy (USD)</p></td><td width="96" valign="top" style="width:72.0pt;border-top:none;border-left:none;
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solid black .5pt;mso-border-left-alt:solid black .5pt;mso-border-alt:solid black .5pt;
padding:0cm 5.4pt 0cm 5.4pt">150</td><td width="96" valign="top" style="width:72.0pt;border-top:none;border-left:none;
border-bottom:solid black 1.0pt;border-right:solid black 1.0pt;mso-border-top-alt:
solid black .5pt;mso-border-left-alt:solid black .5pt;mso-border-alt:solid black .5pt;
padding:0cm 5.4pt 0cm 5.4pt">150</td><td width="96" valign="top" style="width:72.0pt;border-top:none;border-left:none;
border-bottom:solid black 1.0pt;border-right:solid black 1.0pt;mso-border-top-alt:
solid black .5pt;mso-border-left-alt:solid black .5pt;mso-border-alt:solid black .5pt;
padding:0cm 5.4pt 0cm 5.4pt">150</td><td width="96" valign="top" style="width:72.0pt;border-top:none;border-left:none;
border-bottom:solid black 1.0pt;border-right:solid black 1.0pt;mso-border-top-alt:
solid black .5pt;mso-border-left-alt:solid black .5pt;mso-border-alt:solid black .5pt;
padding:0cm 5.4pt 0cm 5.4pt">150</td><td width="96" valign="top" style="width:72.0pt;border-top:none;border-left:none;
border-bottom:solid black 1.0pt;border-right:solid black 1.0pt;mso-border-top-alt:
solid black .5pt;mso-border-left-alt:solid black .5pt;mso-border-alt:solid black .5pt;
padding:0cm 5.4pt 0cm 5.4pt">150</td></tr></tbody></table></div><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><br></div><div style="font-family:times new roman, new york, times, serif;font-size:12pt">The digester model is a modified version of the Deenbandhu digester, a fixed dome digester. The digester have a 2 year warranty and last typically for 15-20 years. </div><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><br></div><div style="font-family:times new roman, new york, times, serif;font-size:12pt">On top of that users receive a flat rate subsidy of $150, which originates from carbon finance. The program costs are, I believe, now $250 per biogas plants. This is a joint SNV- Cambodian government programme.</div><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><br></div><div style="font-family:times new roman, new york, times,
serif;font-size:12pt">In Vietnam the costs are almost 1 million VND per m3, that is around $50/m3 digester volume, on top of that farmers receive a flat rate $50 subsidy. Their digester model is based on the Chinese dome digester.</div><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><br></div><div style="font-family:times new roman, new york, times, serif;font-size:12pt">Cheers,</div><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><br></div><div style="font-family:times new roman, new york, times, serif;font-size:12pt">Eric</div><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><br></div><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><br></div><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><br><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><font size="2"
face="Tahoma"><hr size="1"><b><span style="font-weight: bold;">From:</span></b> Alexander Eaton <alex@sistemabiobolsa.com><br><b><span style="font-weight: bold;">To:</span></b> For Discussion of Anaerobic Digestion <digestion@lists.bioenergylists.org><br><b><span style="font-weight: bold;">Sent:</span></b> Wed, September 29, 2010 7:48:18 AM<br><b><span style="font-weight: bold;">Subject:</span></b> Re: [Digestion] Costs of different household biodigesters<br></font><br>HI All, <br><br>We have reinforced polyethylene geomembrane digester in a variety of sizes that come as a "kit" with all connections, biogas reservoir, geo-textil ground liner, gas management systems with high pressure relief valve and filter, and simpler burner. The system can be installed in the ground or above ground, and the material has a 20 year guarantee. We service and guarantee the systems for two years, and offer low cost service for the life of the
system (currently only in Mexico). There may be additional costs associated with a roof or greenhouse structure for the digester. Note that Jaime has also included the price of a greenhouse cover for the Bolivia systems, which many others leave out. Our intention is no use of concrete, but sometimes there is a bit of work needed to make the pig-pen or stable drain adequately to the digester. Retail prices (all in) are below, and the sizes refer to m3. We have made systems of 1 and 2 m3 for test purposes, but these are not much less expensive than that of 4 meters as the entrance and exits cost the same and our asembly labor is nearly the same as well (therefore larger systems are less expensive per m3). >From these prices we offer discounts for good programs, low income families, and for higher quantities purchased. <br>
<br>
<style>table {}.font5 {color:windowtext;font-size:8pt;font-weight:400;font-style:normal;text-decoration:none;font-family:Verdana;}td {padding-top:1px;padding-right:1px;padding-left:1px;color:windowtext;font-size:10pt;font-weight:400;font-style:normal;text-decoration:none;font-family:Verdana;vertical-align:bottom;border:medium none;white-space:nowrap;}.xl24 {text-align:center;border:0.5pt solid windowtext;background:none repeat scroll 0% 0% white;white-space:normal;}.xl25 {border:0.5pt solid windowtext;background:none repeat scroll 0% 0% white;white-space:normal;}.xl26 {font-weight:700;text-align:center;vertical-align:middle;border:0.5pt solid windowtext;background:none repeat scroll 0% 0% white;white-space:normal;}.xl27 {font-weight:700;border:0.5pt solid windowtext;white-space:normal;}.xl28 {border:0.5pt solid windowtext;white-space:normal;}ruby {}rt
{color:windowtext;font-size:8pt;font-weight:400;font-style:normal;text-decoration:none;font-family:Verdana;display:none;}</style>
<table style="border-collapse:collapse;" border="0" cellpadding="0" cellspacing="0" width="225">
<colgroup><col span="3" width="75">
</colgroup><tbody><tr height="26">
<td class="xl26" height="26" width="75">Bolsa Sizes </td>
<td class="xl26" width="75">Costo (MXN)</td>
<td class="xl27" width="75">Costo (US$)</td>
</tr>
<tr height="13">
<td class="xl24" height="13" width="75">4</td>
<td class="xl25" align="right" width="75">$9,292</td>
<td class="xl28" align="right" width="75">$743</td>
</tr>
<tr height="13">
<td class="xl24" height="13" width="75">8</td>
<td class="xl25" align="right" width="75">$12,802</td>
<td class="xl28" align="right" width="75">$1,024</td>
</tr>
<tr height="13">
<td class="xl24" height="13" width="75">12</td>
<td class="xl25" align="right" width="75">$16,312</td>
<td class="xl28" align="right" width="75">$1,305</td>
</tr>
<tr height="13">
<td class="xl24" height="13" width="75">16</td>
<td class="xl25" align="right" width="75">$19,823</td>
<td class="xl28" align="right" width="75">$1,586</td>
</tr>
<tr height="13">
<td class="xl24" height="13" width="75">20</td>
<td class="xl25" align="right" width="75">$20,515</td>
<td class="xl28" align="right" width="75">$1,641</td>
</tr>
<tr height="13">
<td class="xl24" height="13" width="75">30</td>
<td class="xl25" align="right" width="75">$28,813</td>
<td class="xl28" align="right" width="75">$2,305</td>
</tr>
</tbody></table>
<br>
<style>table {}.font5 {color:windowtext;font-size:8pt;font-weight:400;font-style:normal;text-decoration:none;font-family:Verdana;}td {padding-top:1px;padding-right:1px;padding-left:1px;color:windowtext;font-size:10pt;font-weight:400;font-style:normal;text-decoration:none;font-family:Verdana;vertical-align:bottom;border:medium none;white-space:nowrap;}.xl24 {text-align:center;border:0.5pt solid windowtext;background:none repeat scroll 0% 0% white;white-space:normal;}.xl25 {border:0.5pt solid windowtext;background:none repeat scroll 0% 0% white;white-space:normal;}.xl26 {font-weight:700;text-align:center;vertical-align:middle;border:0.5pt solid windowtext;background:none repeat scroll 0% 0% white;white-space:normal;}ruby {}rt {color:windowtext;font-size:8pt;font-weight:400;font-style:normal;text-decoration:none;font-family:Verdana;display:none;}</style><br>
We also built a lot of regular plastic digesters in the style of Jaime (Taiwanese or Preston Digester), and the costs in Mexico (same components, double layer bag), were only about 10-20% lower. This is higher than Jaime has shown, which could be because of higher material prices in Mexico. <br>
<br>For SNV's program in Africa, their prices for the concrete dome digesters were nearly identical for those I listed above. We are quite a bit cheaper overall as our system requires only a couple hours (one technician installs 3 per day) versus a week of construction. Also, our materials prices are much cheaper at higher volumes. <br>
<br>It is important to note that it can be very misleading to state "costs" for these types of systems. These sorts of speculations often seem to project the idea that someone is building the system in their backyard, and therefore it is appropriate to externalize many of the costs. When installing the "appropriate tech" style bag digester, there are a few days of installation preparation, plus acquisition of materials, etc. Just pulling off the price tag of the materials often does not appropriately encapsulate the full cost of the installation. This tends to set up false expectations to those who would like to promote the technology, or when a government wants to spend to have them installed. I beleive (please comment Jaime) that the Bolivia program has a subsidy in place for installation, transport, and labor, which is crucial to consider. The families are also required to supply certain materials and labor for the
installation. <br>
<br>I also have a full study of Life Cycle Costs, which is arguably a better measure of the cost of a system that you want to last a long time. With a longer projected life span (and repairability), geomembrane digesters were about 40% less expensive over a 10 year span than lower quality plastic systems. Dome digester tend to hold their value longer in some cases, but there is a higher abandonment rate due to slow gas leaks that reduce end user satisfaction. <br>
<br>Saludos,<br><br>A<br><br><br><div class="gmail_quote">On Tue, Sep 28, 2010 at 6:03 PM, Jaime Marti Herrero <span dir="ltr"><<a rel="nofollow" ymailto="mailto:tallerbiogas@hotmail.com" target="_blank" href="mailto:tallerbiogas@hotmail.com">tallerbiogas@hotmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204, 204, 204);padding-left:1ex;">
<div>
Hi<br>
plugflow digester made of tubular polyethilene cost in Bolivia:<br>
-For cold climate : 230 us$ with 6.5m3 of liquid volume, green house, three biogas reservoirs, and one bunner<br>
-For valley climate: 185 us$ with 3,5m3 of liquid volume, 66% sun cover, two biogas reservoirs and one bunner<br>
-For tropical climate 168 us$ witk 3 m3 of liquid volume, 66% sun cover, two biogas reservoirs and one bunner<br>all of are load with 20kg of fresh cow manure and 60 liters of water per day, producing about 700 liters of biogas per day.<br>
<br>
We have done 1m3 tubular polyethilene digester for research considerations using 2m circunference plastic and 4,8 meters long. i dont have the cost because a plastic factory donate this material to our laboratory.<br>
<br>
i hope this helps<br>
keep in touch<br>
jaime<br>-----<br><b>Jaime Martí Herrero</b><br><br>
<p style="line-height:normal;"><span lang="EN-US"><font size="3"><font face="Calibri"><i>Technical advisor of biogas for the GTZ-Bolivia</i></font></font></span></p>
<p style="line-height:normal;"><span lang="EN-US"><font size="3"><font face="Calibri"><i>CIMNE (</i><a rel="nofollow" target="_blank" href="http://www.cimne.com/beegroup"><span style="color:windowtext;text-decoration:none;"><font size="3">www.cimne.com</font></span></a>)</font></font></span></p>
<p style="line-height:normal;"><i><span lang="EN-US"><font size="3"><font face="Calibri">Building Energy and Environment Group</font></font></span></i></p>
<p style="line-height:normal;"><i><font size="3"><font face="Calibri">International research cooperation area</font></font></i></p>
<p style="line-height:normal;"><font face="Calibri"><font size="3">La Paz · Bolivia</font></font></p>
<p style="line-height:normal;"><font size="3">Tel. (+591)-73 090 621</font></p>
<p style="line-height:normal;"> </p>
<p style="line-height:normal;"><br><b>BIOGAS AND BOLIVIA</b><br>-Taller Biogas Bolivia<br><a rel="nofollow" target="_blank" href="http://tallerbiogas.blogspot.com">http://tallerbiogas.blogspot.com</a><br>-Video: Biodigester installation in bolivian Altiplano<br>
<a rel="nofollow" target="_blank" href="http://es.youtube.com/watch?v=3Sl0XEN5Bgo">http://es.youtube.com/watch?v=3Sl0XEN5Bgo</a><br><a rel="nofollow" target="_blank" href="http://www.youtube.com/watch?v=Vs0JuV8WD_c">http://www.youtube.com/watch?v=Vs0JuV8WD_c</a></p>
<p style="line-height:normal;">-Manual gratuito-Biodigestores familiares: Guía de diseño y manual de instalación<br><a rel="nofollow" target="_blank" href="http://www.upc.edu/grecdh/pdf/2008_JMH_Guia_biodigestores.pdf">http://www.upc.edu/grecdh/pdf/2008_JMH_Guia_biodigestores.pdf</a><br>
</p><br><br><br>
<br>
<hr>
Date: Tue, 28 Sep 2010 10:50:06 -0700<br>From: <a rel="nofollow" ymailto="mailto:ivomdb@gmail.com" target="_blank" href="mailto:ivomdb@gmail.com">ivomdb@gmail.com</a><div class="im"><br>To: <a rel="nofollow" ymailto="mailto:digestion@lists.bioenergylists.org" target="_blank" href="mailto:digestion@lists.bioenergylists.org">digestion@lists.bioenergylists.org</a><br>
Subject: [Digestion] Costs of different household biodigesters<br><br></div><div><div></div><div class="h5">Hi all,<br><br>I would like to know if anyone knows or have a good estimate of the cost of the following small scale biodigesters:<br>
<br>1- Plug-flow polyethylene biodigester type (like the ones in Bolivia) (between 1-10 m3).... I don't know if it's possible to build one with such small size like 1m3<br>2- Chinese fixed-dome (between 1m3-10 m3)<br>
3- ARTI type biodigester (1-2 m3)<br><br>Thanks,<br><br>Ivo Oliveira<br>
<div style="display:inline;"></div>
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<br></blockquote></div><br><br clear="all"><br>-- <br>Alexander Eaton<br>Sistema Biobolsa<br>IRRI-Mexico<br><br>Mex cel: (55) 11522786<br>US cel: 970 275 4505<br><br><a rel="nofollow" ymailto="mailto:alex@sistemabiobolsa.com" target="_blank" href="mailto:alex@sistemabiobolsa.com">alex@sistemabiobolsa.com</a><br>
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