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GHG emissions the eThekwini experience

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GHG Emission Inventory

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GHG reporting in DurbanTwo previous inventories • 2002 Full GHG emission

inventory – data collected for Municipal contribution and estimated for Community or City-wide contribution

• 2004 The data collection was repeated and a summary published– Emissions from the greater

Durban community (estimates only)

– Data used to inform EMD Energy Efficiency project

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eThekwini’s Approach: HEAT

• Online GHG emission calculator of ICLEI• EMD existing relationship with ICLEI Local

Governments for Sustainability• Improvement on Torrie Smith methodology • http://heat.iclei.org• A database that EMD could review and maintain

themselves

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What is HEAT?

• Online software to support local greenhouse gas and air pollution emission reduction planning

• Build an emissions inventory based on local energy use, transportation demand, and waste practices

• Help a user/city build a simple emissions forecast • Set a target/goal for reducing emissions (e.g.,

reduce GHG emissions by 10%) • Provide a database for storage of emission data• Calculations using emission factors• Quantify emission reduction activities and their

co-benefits

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Government inventory categories

Government Structure:•Buildings•Vehicle fleet •Employee commute•Streetlights•Water/sewage•Waste•Other

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Community inventory categories

Community Structure:• Residential• Commercial• Industrial• Transportation• Waste• Other

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GHG data collection• Contacted local Municipal departments• Contacted EMD staff collecting the same data for

SOER and State of Energy Department• Worked with Enviros, State of Energy Report

• Major data contributor, South Africa Petroleum Industries Association

• Sugar Milling Research Institute

• eThekwini Electricity

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Inventory Results Comparison of Government (Municipal) and Community

Greenhouse Gas Emissions (2005/2006) Total CO2eq emissions of 23 Mt/a

95%21,413,906

Community GHG emissions

5%1,118,061

eThekwini Municipality GHG emissions

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Municipality GHG Contributions

Government (Municipal) Greenhouse Gas Emissions by Sector (EMA 2005/ 06)

Being 5 % of estimated total greenhouse gas emissions from the EMA

Buildings7.8%

Vehicle Fleet1.5%

Water/Sewage6.2%

Streetlights6.2%

Employee Commute0.9%

Waste19.5%

Other (includes electrical distribution losses, electricity theft and

unmetered electricity use)58.0%

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Community GHG Contributions

Community Greenhouse Gas Emissions by Sector (Durban (EMA) 2005/ 2006)

This represents 95% of total GHG emissions for the EMA

Commercial9.1%

Industrial 47.0%

Residential17.6%

Waste0.5%

Transportation25.9%

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Inventory Comparisons

BuildingsVehicleFleet

EmployeeCommute Streetlights

Water/Sewage Waste

Other(includeselectrical

distributionlosses)

2003

2005

86,93316,796

9,546

69,051

69,341

218192

648,202

64,06862,729

9,046

100,346

49,357

313,202

649,088

0

100000

200000

300000

400000

500000

600000

700000

Em

issi

on

s o

f C

O2e

q (

t/a)

Comparative GHG emissions (2003/04 and 2005/06) for eThekwini Municipality

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Observations

• Future reports should concentrate on addressing gaps in the data

• Various shortcomings in the software were identified – addressed ahead of future projects

• Verification of data at point of origin

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Discussion and Questions

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ECOSERV Pty LtdEcoserv and AER are now part of SGS Environmental Business

Services. The SGS Group is the world’s leading inspection, verification, testing and certification company.

Mia Antoni