Slaying the Carbon Dragon: Making sense of carbon footprinting Lunch Hour Talk September 08 2011,...
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Slaying the Carbon Dragon: Making sense of carbon footprinting Lunch Hour Talk September 08 2011, Intaka
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Transcript of Slaying the Carbon Dragon: Making sense of carbon footprinting Lunch Hour Talk September 08 2011,...
Slaying the Carbon Dragon: Making sense of carbon footprintingLunch Hour Talk
September 08 2011, Intaka
Carbon Calculated
Founded 2008
Need for cost-effective solution
Trained in GHG Protocol (WRI & WBCSD)
- organisational
- project
- verification
- CarbonKnown
Myriad concepts
Operational boundary
Organisational boundary
Indirect emissions
Direct emissions
Scope 1, 2 &3
Emissions factors
Global warming potentials
CO2e Uplift factors
Purpose of a carbon footprint
What is a GHG?
Not just Carbon dioxide
- 6 main GHGs, incl:CO2, SF6, CH4, N2O, HFCs, PFCs
To capture as many DIRECT GHG emissions and INDIRECT GHG emissions as possible from an organisation/product.
“You can’t manage what you can’t measure”
Different methodologies
Methodologies• Greenhouse Gas Protocol • ISO 14064• PAS 2050 (product)
Feeds into:
1. Carbon Disclosure Project (Q7-15)
2. JSE SRI
3. Global Reporting Initiative (EN16-20)
4. Various climate registries
All born out of GHG Protocol
Direct & indirect emissions
Direct emissions
Emissions from equipment that an organisation owns or has control of.
Indirect emissions
Emissions that an organisation’s activities are responsible for, but for which they do not own the equipment.-Vehicle fleet
- Air conditioning & refrigeration
- Generators
-Electricity
- Air travel
- Office paper
-Commuting
- Logisitics
Emission scopes
Purposefully confusing, but does prevent double-counting!
Compulsory vs. voluntary
So how do you do it?
Emission factorTurns activity into actual GHG emissions.
Multiply the volume of activity by an emission factor
E.g. electricity
Currently Eskom EF for electricity = 0.99 kgCO2 per kWh
Vodacom SA 2011: 297 615 982kWh
= 294 640tCO2e
Footnotes on EFs
Emission factors: Constantly changing
E.g. Electricity was 0.96kgCO2/kWh
An evolving science
Global Warming Potentials (GWPs)
“Potency of a GHG to CO2 in terms of it’s global warming potential”
Methane (CH4) = 21
Freon (HCFC22) = 1 500
SF6 - 22 800
Emission scopes
Purposefully confusing, but does prevent double-counting!
Compulsory vs. voluntary
Getting the carbon message
The South African reality -
It’s the energy, Stupid!
Getting the carbon message
Cost of electricity
The South African Reality
2010-11: 24.8% (ave. R0.4131/kWh)
2011-12: 25.1% (ave. R0.5168/kWh)
2012-13: 25.9% (ave. R0.6506/kWh)
Total increase: 75.8% over 3 years Source: Electricity Monitor
Getting the carbon message
The South African Reality
Cost of carbon
Fossil fuel levy: 2c/kWh
Carbon tax: R165/tonne?
I kWh = 0.99kg C02
I kWh in 2013 = 65c + 16.4c = R0.81
National GHG reduction targets: 34% by 2020; 42% by 2025 agains B.A.U
Getting the carbon message
Target: Reduce emissions 12%/FTE; 2007-15
Achieved: 13% energy reduction/FTE; Carbon neutrality
Interventions: Motion sensors, heat pumps, building retrofitting; offsetting
Financial investment: R6,6 million (excl. offsetting)
Financial savings: R36 million
Getting the carbon message
Target: Reduce absolute emissions 10% by 2009-12
Achieved: 29% energy efficiency at Medupi expansion; 60% reduction in eco-friendly housing; 17%
savings from co-generation at Namakwa Sands
Interventions: wind & solar; co-generation; carbon credit trading
Financial savings: R21 million per year
Getting the carbon message
Target: Reduce emissions 30%/m2 2006-12
Achieved: 10% reduction in relative energy use from 2004; 35% reduction in refrigerant energy in select stores; Midrand distribution centre savings 9 370km per week.
Interventions: Energy efficiencies; reduced product miles
Financial savings: R10 million
