Understanding CDM Methodologies - SuSanA

Expanding of
Applicability
Conditions…
… but through
separate
Methodologies!
Two Separate
Methodologies
for Wastewater
Treatment
Further Expansion
of Applicability
Conditions
Box 33: Considerations regarding the use of gas for heat generation
A submission 272 requested clarification on the use of recovered methane for
electricity generation by the project. The submission wondered whether a smallscale
project using AMS-III.D is eligible under AMS-I.A. if the methane recovered
is used for off-grid electricity or heat generation. In response to this request,
SSC WG 03 recommended to amend the AMS-III.D to expand the possible use
of recovered methane in different categories of renewable project activities.
Furthermore EB 22 decided to amend the methodology AMS-III.D to allow
projects that generate electricity or heat by using the recovered methane to use
the corresponding Type I methodology.
Box 34: Evolution of applicability conditions and allowed technologies
Initial applicability conditions for AMS-III.D allowed all types of methane
recovery activities, including coalmines, agro-industries, landfills and wastewater
treatment facilities. Several submissions have requested the development of
new methodologies under Type III for specific activities or the inclusion of new
activities under AMS-III.D.
In the first case, a submission 273 proposed a new category to cover situations
where (i) methane will be emitted from unmanaged lagoons to the atmosphere
or (ii) methane will be emitted directly into the atmosphere by the anaerobic
treatment facility. SSC WG 04 proposed the inclusion of a new category III.H
“Methane recovery in wastewater treatment for measures that recover methane
from biogenic organic matter in wastewaters”. On the same issue and in
response to a submission made by the De Martino WWTP upgrade project 274 ,
SSC WG 04 recommended the new category AMS-III.I “Avoidance of methane
production in wastewater treatment through replacement of anaerobic lagoons
by aerobic system” for activities substituting wastewater treatment in ‘anaerobic’
lagoons with ‘aerobic’ systems avoiding generation of methane. Both new
methodologies were approved by EB 22.
Another two submissions 275 requested the expansion of applicability conditions
to cover project activities that change manure management practices. One
addressed the use of the FOD model to calculate baseline methane emissions,
while the other one proposed the use of the lowest value between the value
resulting from using the “Tier 2 Approach for Methane Emissions from Manure
Management” from the 2006 IPCC Guidelines for National Greenhouse Gas
Inventories and the actual amount of methane recovered. In response to
these requests, SSC WG 06 recommended the revision of AMS-III.D to expand
its applicability to cover project activities that change manure management
from systems such as “lagoons”, “liquid/slurry”, “solid storage” or “drylot”
to “anaerobic digestion” for the treatment of swine or cattle manure. AMS-
III.D (version 13) defines that baseline emissions shall be calculated using the
most recent “Tier 2 approach of the 2006 Guidelines for National Greenhouse
Inventories for Methane Emissions from Manure Management” developed by the
IPCC.
239240241
238
See SSC_016
239
See SSC_024
240
See SSC_040
241
See SSC_046 and SSC_051
95