Understanding CDM Methodologies - SuSanA

More documents

Recommendations

Info

Project Boundary only Decomposition Facility Determination of HCFC-22 maximum Production Capacity Cap on Emission Factor Project boundary The project boundary includes the HCFC-22 production facility and the HFC-23 destruction facility. Transportation of the sludge originating from the neutralization pond is outside of the project boundary. The same applies to the production of purchased energy (electricity and/or steam) used for the operation of the decomposition facility. Baseline scenario and additionality The baseline scenario is continuation of the practice to release HFC-23 waste gases to the atmosphere taking into account current regulatory requirements. The project is additional, if the amount of gas destruction in the project is higher than the amount that currently needs to be decomposed due to existing legislation. This means that in the absence of any regulation, any project is automatically additional. Baseline emissions Calculation of baseline emissions follows a step-wise approach. In a first step, the maximum amount of HCFC-22 production eligible for calculation of baseline emissions is determined (see Box 23) and multiplied with the historic HFC-23 emission factor from the plant (in t HFC-23/ t HCFC-22). Box 23: Determination of maximum production capacity in case of multiple production lines and swing plants Following a request for clarification from a company that had recently bought up a neighboring HFC-23 production plant next to their initial plant, the EB generally decided that the historical level of production should be established for all production lines at a single industrial site. This decision avoids that the maximum eligible production can be significantly higher than the actual production of the respective plant. At some plants HFC-23 can also be produced on the same lines as the chlorofluorocarbons CFC-11 and CFC-12. In such “swing plants” the CFC production must be included as equivalent HCFC-22 production based on historic HCFC-22 and CFC production capacity. If historic records are available, the project proponent needs to measure the production capacity of each gas separately at the plant at full load to arrive at the total maximum eligible HCFC-22 production. In analogy to the procedure for determination of the eligible HCFC-22 production, the historic emission factor has to be the lowest of the historic annual emission factor of the three most recent years of operation up to 2004. The emission factor is fixed for the entire crediting period(s) and is capped at 3%. The emission factor must be estimated based on historic process data (see Box 24). If data should be insufficient to determine the historic emission factor, a default value of 1.5% must be used. Box 24: Challenges in estimation of historic emission factor Measurement of Historic Emissions Factor Direct measurement of HFC-23 release is the preferred method of establishing the historic emission factor. In cases where such data is not available the project proponents are allowed to use mass balance or alternative methods based on actual data. The first registered <strong>CDM</strong> project, a HFC-23 destruction project in Gujarat (India), for example used a chloroform mass balance to derive the emission factor. This has been accepted by the validating DOE and the project proponent was allowed to use the emission factor of 2.9% instead of having to use the much more unfavorable default of 1.5%. 66
In a second step, it is tested whether the baseline emissions resulting from Step 1 are larger than those resulting from the amount of waste gas that would be required to be destroyed by regulation. If this is the case, the HCFC-22 production quantity eligible for calculation of baseline emissions is capped at the level as required by the relevant regulation. Project emissions HFC-23 not destroyed Energy from External Sources and Transport Emissions The only sources of GHG emissions in the project boundary result from amounts of HFC-23 not destroyed and CO 2 emissions from the fuel used during combustion. Leakage Steam and power consumption are accounted for as leakage as these forms of energy are usually purchased from external sources and associated GHG emissions are therefore not included in the project boundary. CO 2 emissions due to fuel combustion for transportation of the sludge are also leakage emissions. Monitoring Monitoring shall be conducted on the following items: Ex ante • HCFC-22 production and HFC-23 release from 2001-2004 • Last years HCFC-22, CFC-11 and CFC-12 production records • Regulation on HFC-23 emission threshold, if any Ex post • Amount of HFC-23 supplied to the destruction process (see Box 21) • Amount of HFC-23 generated in each production line • Purity of HFC-23 • Potential leakage of HFC-23 emissions from the thermal oxidizer during shut-down times • Quantity of HCFC-22 produced and sold • Fossil fuels burned in the project and their emission factors differentiated according to fuel type • Electricity grid emission factor according to ACM 0002 • Electricity consumption • Steam consumption and steam emission factor of the steam source 67
Page 1 and 2:
Understanding CDM Methodologies A g
Page 3:
Introduction The success of the Cle
Page 7 and 8:
1. Introduction Climate Change is a
Page 9 and 10:
Aim of Guidebook This guidebook wil
Page 11 and 12:
Special Status of the Marrakech Acc
Page 13 and 14:
Small Scale Thresholds over Time Cr
Page 15 and 16:
Transparency, Conservativeness, Con
Page 17 and 18: Role of DOEs - Absence of Accredita
Page 19 and 20: Figure 2: The CDM project cycle CER
Page 21 and 22: EB Decision Making and the Role of
Page 23 and 24: While COP/MOP has provided that Lar
Page 25 and 26: Verification Regarding verification
Page 27 and 28: 3. Barrier analysis, with the aim t
Page 29 and 30: Rejections due to Lack of Additiona
Page 31 and 32: 4. Methodologies Methodology Case L
Page 33 and 34: Figure 9: Fuel switch family tree M
Page 35 and 36: Interpretation of top 20% in Approa
Page 37 and 38: 4.1.4 Leakage Unclear Definition of
Page 39 and 40: Top-down Methodology Development fo
Page 41 and 42: Table 4: Methodology revisions 2005
Page 43 and 44: 5. Key elements and application of
Page 45 and 46: Two Methodologies added Nitric Acid
Page 47 and 48: Methodological Concept Power Genera
Page 49 and 50: Box 13: Exclusion of immaterial par
Page 51 and 52: Build Margin Build Margin: newest P
Page 53 and 54: Box 16: OM/ BM calculation where th
Page 55 and 56: Project Emissions With the exceptio
Page 57 and 58: Applicability Conditions Grid has t
Page 59 and 60: Leakage Leakage: Transfer of Equipm
Page 61 and 62: Box 20: Sufficient natural gas supp
Page 63 and 64: • Option 3: The emission factor o
Page 65 and 66: Industrial Gas Methodologies 5.3 De
Page 67: No Additionality Problem Another co
Page 71 and 72: Determination of the Emission Facto
Page 73 and 74: Baseline scenario and additionality
Page 75 and 76: Box 27: Ensuring accuracy of measur
Page 77 and 78: 5.4.2 Basic concept Emissions Reduc
Page 79 and 80: Default Cogen Plant Efficiency 90%
Page 81 and 82: 5.4.4 AMS-II.D Project Description
Page 83 and 84: 5.4.5 AM0046 This methodology warra
Page 85 and 86: • Information on any changes made
Page 87 and 88: Displacement of Natural Gas in Pipe
Page 89 and 90: Landfill gas capture and flaring ac
Page 91 and 92: Ex post: The main parameters that n
Page 93 and 94: Box 31: Deviation of monitoring met
Page 95 and 96: Box 32: Measurement of the flare ef
Page 97 and 98: Expanding of Applicability Conditio
Page 99 and 100: Seven-Step Procedure for Measuremen
Page 101 and 102: Project boundary Transport of Waste
Page 103 and 104: Biomass Leakage: Proving that there
Page 105 and 106: 5.6 .3 ACM0008 Description of the c
Page 107 and 108: • Methane used for electricity an
Page 109 and 110: Applicability conditions Definition
Page 111 and 112: or retrofit. This baseline holds fo
Page 113 and 114: • For biomass-fired projects, a s
Page 115 and 116: A handful of projects have submitte
Page 117 and 118: Submission of further Baseline Scen
Page 119 and 120:
Heat only Projects Baseline Scenari
Page 121 and 122:
• Quantity of steam diverted from
Page 123:
Published by the Department for Env
show all

Understanding CDM Methodologies - SuSanA

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?