CARBON FOOTPRINT INITIATIVE - DEVELOPMENT OF A METHODOLOGY ON CARBON INVENTORY FOR TNB POWER PLANTS

Transcription

1 CARBON FOOTPRINT INITIATIVE - DEVELOPMENT OF A METHODOLOGY ON CARBON INVENTORY FOR TNB POWER PLANTS Presented by: Radin Diana R. Ahmad Environment Unit TNB Research Sdn. Bhd. Stakeholder Consultation Workshop for National Carbon Disclosure Programme 12 July 2012

2 Outline of Presentation Introduction Objective Methodology Carbon Footprint Assessment for TNB Conclusion Slide No. 2

3 TNB s Drive Slide No. 3

4 By FY2015 (Growth,Global,Green):TNB to be a regional ESI player Slide No. 4

5 Slide No. 5

6 TNBR role Provide technical advisory services to TNB group Becomes the Coordinating body to execute carbon footprint project development through R&D funding Conduct carbon footprint assessment for G,T,D. Identify operational boundary and sources of emissions. Establishment of baseline on carbon footprint for TNB. Analysis of carbon footprint and developing strategies/mitigation measure in GHG reduction. Slide No. 6

7 INTRODUCTION In 2010, TNB corporate planning has requested Generation Division to embark on the estimation of carbon footprint from its power plants. TNB Research was asked to conduct this study to preliminary assess the carbon inventory and develop the methodology to determine the carbon footprint for all TNB power plant. Slide No. 7

8 Objective The main objectives of this project are as follows: 1. To do the preliminary assessment of Carbon Inventory for TNB Thermal Power Plants 2. To recommend the most suitable methodology of measuring Carbon Footprint for TNB power plants based on International accepted practices Slide No. 8

9 How To Measure? The following internationally-recognised guidelines are used: GHG Protocol, and 2006 IPCC Guidelines for National Greenhouse Gas Inventories Slide No. 9

10 Emission Scopes Emissions are categorised by scope as defined in the GHG Protocol: Scope 1, direct emissions Scope 2, indirect emissions Scope 3, other indirect emissions Slide No. 10

11 Scope 1 Direct Emissions From sources that are owned or controlled by the company Slide No. 11

12 Key steps in calculating CO 2 Emissions Steps Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Description Collect data on the quantity of fuel combusted on a volume, mass or energy basis If necessary, collect data on the fuel's density and/or calorific/heating value and convert fuel data to a common volume, mass, or energy content basis. The fuel consumption data from Step 1 and the carbon content data from Step 2 should be a common basis before calculating emissions. Estimate carbon content of each of the fuels combusted. Collect data to determine oxidation fraction. Check to ensure that all units are consistent and converted correctly across parameters and facilities. Estimate CO 2 emissions Slide No. 12

13 GHG Estimation Formula The most common approach used to calculate GHG emissions is to apply documented emission factors to known activity data GHG Emissions = Activity Data x Emission Factor x GWP The GHG estimations will be calculated in the unit of tco 2e Slide No. 13

14 Stationary Combustion Activity Data = Fuel Consumption from each power plant Fuel Use (Volume) Density Fuel Use (Mass) Litres kg/litres kg Fuel Use (Mass) NCV Fuel Use (Energy) kg TJ/kg TJ Fuel Use (Energy) Emission Factor Fuel Use (Emissions) TJ kg GHG/TJ kg GHG Slide No. 14

15 Carbon Footprint Assessment for TNB TNB needs to develop a carbon footprint assessment. This will allow TNB to have an accurate assessment of GHG emissions from its operational activities. Slide No. 15

16 Carbon Footprint Process Flow Develop methodology on Carbon Footprint Assessment for G,T,D Develop template and procedure in data collection and analysis Develop GHG Monitoring Tool to track and report emissions Validation/ Verification of data G,T,D Carbon Footprint Assessment Identify the largest source of emissions Recommendation of mitigation measures Slide No. 16

17 Overall Research Methodology 1. Literature review (Articles, journals etc.) and Technical Discussion. 2. Operational boundary and sources of emission setting 3. Conduct CF Assessment: Data analysis and results 4. Develop database for GHG monitoring tool for CF 5. Recommendations for mitigation potentials and improvement of CF 6. Awareness on results and findings Literature review on distribution CF Review of IPCC 2006, CDM methodologies, GHG Protocol and ISO standard Establish methodology for CF assessment Identification of boundary Identification of sources of emissions i.e. mobile combustion, fugitive emissions and others Data collection Data input and analysis Data validation/verification Results Comparison with other companies, countries and etc. Stage 1 Stage 2 Slide No. 17

18 Scope 1(Direct): Scope 2 (Indirect): Scope 3 (Optional): CF Assessment for TNB Generation, Transmission and Distribution Stationary combustion Boilers, Back-Up Fuel Generator and etc. Mobile combustion TNB s owned vehicles Fugitive emissions SF 6 of the electrical equipment, HFCs from air conditioning and refrigeration systems, HFCs and PFCs from fire suspension equipment, CO 2 emissions from fire extinguisher. GHG Covered (CO 2, HFC,SF 6 ) Transmission/ Distribution losses Electricity used in TNB s - owned buildings GHG Covered (CO 2 ) Staff commuting Raw material transportation Waste disposal GHG Covered (CO 2,CH 4,N 2 O) GHG Included: CO 2, CH 4, N 2 O, SF 6, HFC, PFC Slide No. 18

19 Analysis of Fuel Data and Establishment of EF value GHG Emissions = Σ Activity Data x Emission Factor A GHG data processing and assessment as shown below: Identify Boundaries and Source of Emissions Data Input and Analysis GHG Emissions Database Scope 1 Stationary Combustion Analysis of Operational Data by using fuel-based analysis method (E = A x EF (CV x CC x OF) x GWP) Mobile Combustion Fugitive Emission CO 2 CH 4 Other GHGs: SF6 Scope 2 and 3 Other Indirect Emission Monthly and/or Annual Fuel Consumption x Carbon Emission Factor x 44/12 Monthly and/or Annual Fuel Consumption x CH4 Emission Factor x 21 GWP Monthly and/or Annual Fuel Consumption x Emission Factor x GWP Slide No. 19

20 Carbon Footprint Initiative: Proposed Plan Financial Year Quarter Oversight Committee Project Stages Q3 FY2011 Q4 Q1 Q2 Q3 Q4 1 st GREENER Meeting (7 th Apr 2011) 2 nd GREENER Meeting (4 th Aug 2011) 1 st Carbon Footprint Meeting (16 th Aug 2011) Assessment of current efforts & gaps Determination of project TOR & scope 3 rd GREENER Meeting (Q1 FY2012) FY th GREENER Meeting (Q2 FY2012) 5 th GREENER Meeting (Q3 FY2012) 6 th GREENER Meeting (Q4 FY2012) 2 nd Carbon Footprint Meeting (Q2 FY2012) G,T,D Carbon Footprint Study Way forward Mitigating action to reduce carbon emission 3 rd Carbon Footprint Meeting (Q4 FY2012) Stage 1 Stage 2 Project Deliverables Stage 3 Deliverables Current efforts & gaps. Project TOR and scope Slide No. 20 G,T,D baseline carbon footprint

21 Conclusion TNB needs to develop a carbon footprint assessment. On the other hand, TNB s would have a complete data set on CO 2 or GHG emissions which enables the company to track the GHG emissions and manage its GHG programs. This will allow TNB to have an accurate assessment of GHG emissions from its operational activities. Slide No. 21

22 Contacts:- Radin Diana R. Ahmad Ir. Mohd Noh Ahmad Ahmad Rosly Abbas Md. Fauzan Kamal TNB Research Sdn. Bhd. No. 1, Lorong Ayer Itam, Kawasan Institusi Penyelidikan, Kajang, Selangor, MALAYSIA Tel: Fax: / 29 Slide No. 22