Understanding CDM Methodologies - SuSanA
Understanding CDM Methodologies - SuSanA
Understanding CDM Methodologies - SuSanA
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Box 31: Deviation of monitoring methodology ACM0001: Using one flow<br />
meter for measuring LFG flow to leachate evaporator and enclosed flare 267<br />
Use of one Meter<br />
in specific Case<br />
This request was submitted by the project “Anding Landfill Gas Recovery and<br />
Utilization Project” on September 13, 2006. The DOE who submitted the request<br />
raised that the project – which had already been validated – was not using a<br />
separate, direct meter for measuring the landfill gas flow to the flare as requested<br />
by ACM0001 (version 2). Instead, the project used two indirect flow meters, one<br />
for measuring the LFG to the recovery system and one from the capture system<br />
to a leachate evaporator unit. The DOE argued that this specification had been<br />
considered in the project’s monitoring plan and that there was physically no room<br />
for adding a separate flow meter to measure the flow to the flare. According to<br />
the DOE, the lack of a separate meter to measure the flow to the flare would<br />
not impact the emissions reductions estimates since the system was designed to<br />
ensure that all captured LFG not directed to the leachate recovery system was<br />
automatically going to the flare.<br />
Considering that the requirement to install an individual meter for measuring LFG<br />
flow to the flare had only been adopted to ensure redundancy in measurement,<br />
the DOE requested a deviation from ACM0001 (version 2) to apply the<br />
monitoring plan of the project’s validated PDD. Interestingly, the EB approved<br />
the DOE’s request for deviation, although it represented a shift away from the<br />
redundancy in measurements principle embedded in the <strong>CDM</strong>. Nonetheless, the<br />
EB requested the DOE to submit a request for revision of the project’s monitoring<br />
plan to ensure that the project complies with the latest version of ACM0001 for<br />
future monitoring periods.<br />
233<br />
See request for deviation “Deviation of monitoring methodology ACM0001: Using one flow meter for<br />
measuring LFG flow to leachate evaporator and enclosed flare” at http://cdm.unfccc.int/Projects/Deviations/<br />
index.html, October 1, 2007.<br />
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