Introduction

Team Profile

• Name: Green Inc.

• “A greener campus is a safer campus”

• 5 Group members passionate about environmental sustainability.

Project Scope

• Category: Electricity & Water Consumption

• Scope 3 (Total indirect GHG)

• Areas covered include Lower, Middle and Upper campuses for electricity consumption.

• All campuses local and satellite covered for Water consumption.

Overview

• There are 3 primary speakers.

• Discussion items to be presented include: o Data collection

o Carbon footprint calculation

o Data Analysis

o Recommendations on Data collection process

o Recommendations on reduction of emissions

o Project limitations and challenges

o Reflection on Group experiences

Data CollectionData Required Contact Person

Electricity: Upper campus Middle campus Lower campus Medical School

Andre TheysProperties and Services: Engineering Services Manager

Water: Upper campus Middle campus Lower campus Main campus

Fahzma JaffarProperties and Services: Finance Manager

Building’s Floor Area Sandra RipponData Source Co-ordinator

Location of installed electricity meters on campus and how they work in accordance to consumption and calculations.

Andre TheysProperties and Services: Engineering Services Manager

Carbon Footprint Calculation

Electricity Grid Emissions factor:

“The greenhouse gas Grid Emission Factor (GEF) is the total amount of GHGs emitted per unit of electricity generated for and distributed by an electricity grid, taking in account imports and exports of electricity from the interconnection with other grids.”

Electricity-specific Emission Factors for Grid Electricity, August 2011

Carbon Footprint Calculation

Electricity Grid Emissions factor:

• for the financial year ended 31st March 2012 factors of 0.99 and 1.03 t CO2e/MWh were published

• Factor 1 = 231.9 Mt CO2e emitted ÷ 224.8 TWh sold = 1.03 t CO2e per MWh.

• Factor 2 = 231.9 Mt CO2e emitted ÷ 233.3 TWh net generated and available for distribution = 0.99 t CO2e per MWh

Carbon Footprint Calculation

For the financial year ended 31st March 2012 the calculation is:

• As denominator, use the TWh number of 250.5 TWh before T&D losses;

• As numerator, add emissions from:

• Imports: since this is hydro from Mozambique, the emissions factor is assumed to be 0 t CO2e/MWh;

• Purchases from IPPs: this is a mix of sources with an estimated emissions factor of 0.85 t CO2e/MWh 17;

• The total numerator is hence 231.9 + 0.0 + 3.5 = 235.4 Mt CO2e;

• The revised factor is hence:

235.4 t CO2e emitted ÷ 250.5 TWh = 0.940 t CO2e/MWh.

Carbon Footprint Calculation

Water emissions factor:

There are two emission factors given by the Defra Conversion Table with one associated with water treatment and the other associated with water supply

• EMISSION FACTOR DUE TO WATER SUPPLY = 0.3441 kg CO2e per unit

• EMISSION FACTOR DUE TO WATER TREATMENT = 0.7085 kg CO2e per unit

Department for Environment, Food & Rural Affairs [UK], 2012

Data Analysis

Campus

electricity consumption (KWh)

electricity consumption(MWh)

Carbon Emissions (t CO2e/MWh)

Upper 29204650.00 29204.65 27452.37

middle 5779552.50 5779.55 5432.78

lower 4767269.00 4767.27 4481.23

medical school 10068687.95 10068.69 9464.57

39751471.50 39751.47 37366.38

1 kilowatt hour = 0.001 megawatt hoursThe Emission factor = 0.94 t CO2e/MWh

Data Analysis

Data Analysis

Data Analysis

Data Analysis

Emissions0

10000

20000

30000

40000

50000

60000 2007; 48000

2008; 46000 2012;

37000

Comparison of emissions

CO

2e/M

Wh

Data Analysis

Water

181715.3 kg CO2e per unit and 374150.8485 kg CO2e per unit have obtained as GHG emission values associated with water for 2012.

These can be used to compare to past and future values, however since carbon emissions related to water consumption have not been calculated in previous reports, these carbon emission values can be used as baseline for future reports.

Data collection Recommendations

Water consumption information

Data Collection Recommendations

Data Collection Recommendations

• Centralized Data Gathering System • A complete view of the data which allows multiple

queries and abstractions.

• It is easier to manage a centralized database

• Offers Real time benefits

• Easy reporting that benefits management

• Data integrity can be ensured

Data Collection Recommendations

CHALLENGES AND LIMITATIONS

Project related challenges :

Unclear requirements from the beginning

Changing scope

Limited access to valuable Stakeholders

HOW DO WE MOVE FORWARD?RECOMMENDATIONS

Water Consumption:

Implement internal monitoring of water consumption

Meter large buildings and high capacity residences individually

Account for Water usage by Irrigation systems.

HOW DO WE MOVE FORWARD?RECOMMENDATIONS

Electricity Consumption:

Electricity consumption awareness such as Talks on energy saving, putting “Switch off lights” signs in all buildings

Encourage the use of energy saving bulbs, solar power installations and use of paper towels in wash rooms as opposed to powered driers.

Power down all computers that are not being used, as opposed to logging off.

Offer incentives to the most “green” or environmentally friendly building or residence to encourage energy saving initiatives.

ReflectionProject Learning

• The project combined research into teaching and learning well.

• It helped to nurture real project management skills.

• A host of soft skills including Interpersonal relations, punctuality and discipline were at the core of ensuring smooth project running.