rsa carbon footprint calculation 2010-2011

Carbon Footprint Calculator for Royal Society of Arts

RSA Carbon footprint calculator Printed 26/10/2011

This Carbon Calculator has been produced for Royal Society of Arts to enable the company to better understand its environmental performance in terms of its CO2 emissions.

This spreadsheet demonstrates how the company’s carbon footprint has been calculated for the period 01 April 2010 - 01 April 2011.

The Greenhouse Gas (GHG) Protocol is the most widely used international accounting tool for government and business leaders to understand, quantify, and manage greenhouse gas emissions.An essential element of the GHG Protocol are the factors associated with carbon emission outputs. This is divided into 3 distinct areas of analysis: - Scope 1 (Direct emissions - Gas, Other fuel usage on site, Business travel & transport) - Scope 2 (Indirect emissions - Electricity) - Scope 3 (Other Indirect emissions - Primarily Water, Commuter Travel, Materials, Waste)

The following emissions have been included in the scope of this calculation: - Scope 1: gas, business travel, refrigerant gases - Scope 2: electricity - Scope 3: water

The data used in the spreadsheet is based on publicly available conversion factors and other carbon-related data from the UK and the EU. Further information on which conversion factors have been used are found in the methodology.

SCOPE 1:

Step 3Step 2Step 1

St 1

GAS analysis TRAVEL & Transport analysis REFRIGERANT GASES

Start here!Click on any box to complete data

SCOPE 2:

SCOPE 3:

Step 3Step 2Step 1

Step 1

Step 1

WATER analysis

ELECTRICITY usage Calculator



Step 3Step 2Step 1

Step 1

Step 1

WATER analysis

ELECTRICITY usage Calculator



RSA Carbon footprint calculator Page 1 Printed 26/10/2011



Gas:

MethodologyThis methodology explains how each emissions scope has been calculated in order to give the calculation transparency. Publicly available conversion factors from 2011 Guidelines to Defra / DECC's GHG Conversion Factors for Company Reporting (v. 1.2, updated 19/08/11) have been used throughout the calculation and are referred to in the methodologies below.

Gas:

Transport and travel:

The average conversion factor from Annex 1, Table 1c was used. Natural gas consumption figures quoted in kWh by suppliers in the UK are generally calculated (from the volume of gas used) on a Gross Calorific Value (GCV) basis rather than a Net Calorific Value (NCV) basis, hence why Table 1c has been used rather than Table 1d.

Data for travel and transport is obtained from the relevant tables in Annex 6: - Data for Green Tomatoes Toyota Prius taxis is obtained from Table 6d - Data for Swiss Cottage taxis is obtained from Table 6k - this is calculated using total vehicle miles.

D t bli t t ( ti l il L d U d d t ) i bt i d f T bl 6k Th f ll i ti d ti ti h b d h d t id d i t ifi h t

Refrigerant gases:Fugitive missions from refrigerant gases are expressed in terms of kg of CO2 equivalent (written as CO2e) which is the universal unit of measurement that allows the global warming potential of different greenhouse gases

- Data on public transport (national rail, London Underground etc.) is obtained from Table 6k. The following assumptions and estimations have been made where data provided is not specific enough to enable an accurate calculation: - Journeys involving travel on the London Underground have been estimated at an average of 5 miles - Assumptions have also been made as to the London station for journeys where the train could depart from more than one station - Data on flights is obtained from Table 6l.

Electricity:The average conversion factor from Defra/DECC’s Annex 3, Table 3c was used. This table contains emission factors per kWh consumed i.e. electricity coming off the grid for the final consumer, including transmission/distribution losses, and is deemed to be the most suitable for the calculation.

Fugitive missions from refrigerant gases are expressed in terms of kg of CO2 equivalent (written as CO2e), which is the universal unit of measurement that allows the global warming potential of different greenhouse gases (GHGs) to be compared. This calculation has used Method A: Screening Method as set out in Annex 8 to estimate emissions from refrigeration and air conditioning based on the type of equipment used and emissions factors. This approach requires relatively little actual data collection but it is important to note that there is a high degree of uncertainty with these emission factors. There is at present no GWP conversion factor for R417A, therefore an average has been calculated from the three gases which make up the blend: R134a, R125 and R600.

Water:

,

Like refrigerant gases, emissions for water use are expressed in terms of CO2e. Annex 9, Table 9a sets out lifecycle conversion factors for emissions associated with the supply and treatment of water and the organisation’s buildings and transport. This calculation is based on water consumption only.




1).

RecommendationsFollowing the calculation for the footprinting year (April 2010 - April 2011), a number of recommendations have been made to simplify the data collation for future calculations.

1).

2).

The majority of water meter readings and approximately half of the electricity meter readings were based on estimates, and it is recommended that actual meter readings are taken on a regular basis to ensure more accurate calculations in the future. This may also highlight any inaccuracies with bills and ensures that RSA are only paying for the actual energy and water they are using.

A more accurate calculation on CO2e from fugitive emissions from refrigerant equipment can be carried out using Method B: Simplified Material Balance Method. This requires much more information to be obtained, such as the amount of refrigerant used to top up equipment during servicing, but is recommended for larger users of refrigerant or those who expect emissions from refrigerant leakage to be significant. Given the number of refrigerant units the RSA has, use of this method in the future should be considered.

3).By far the largest carbon emissions are attached to the use of energy within the RSA headquarters. As such, the organisation should focus primarily on improvements within the building if they are looking at reducing emissions and related costs. Ecus can provide building appraisals and renewable energy feasibility studies to look into improvements and alterations.


Royal Society of Arts

GAS Usage CalculationsHow do you want to enter your data?


How do you want to enter your data?Meter readings N Y/N - change this box onlykWh Y

Date / Month kWh Gas used Year YearApril to May 2010 29,685.60 1 2May to June 2010 25,575.00 Total kWH Used Total kWH UsedJune to July 2010 15,852.00 420,154.00 0.00 0.00 0.00 0.00July to August 2010 14,181.10 To override the inputs - change these total valuesAugust to September 2010 14,023.00September to October 2010 15,063.50 Conversion factor - kWh to kg CO2September to October 2010 15,063.50 Conversion factor kWh to kg CO2October to November 2010 23,578.40 0.18322November to December 2010 43,670.60December to January 2011 83,448.80 kg CO2 generated kg CO2 generatedJanuary to February 2011 56,918.60 76,980.62 kg CO2 0.00 kg CO2February to March 2011 49,509.10 76,980.62 0.00 0.00 0.00 0.00March to April 2011 48,648.30April to May 2011May to June 2011June to July 2011July to August 2011August to September 2011August to September 2011September to October 2011October to November 2011November to December 2011December to January 2012January to February 2012February to March 2012March to April 2012



TRAVEL & TRANSPORTHow do you want to enter your data?Miles travelled Y Y/N - change this box onlyLitres of fuel used N

CARSYear

1 2

Year


CARSType of travel Classification Conversion factor - miles travelled Miles travelled per year kg CO2 Miles travelled per year kg CO2

1 Green Tomatoes taxis Car fuel - AVERAGE Hybrid Car 0.32721 1,233.70 403.682 Swiss Cottage taxis Taxi - regular (vkm) 0.38877 2,606.00 1,013.133456789

10111213

1 2

1314151617181920

TOTAL 3,839.70 1,416.81 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

How do you want to enter your data?Miles travelled Y Y/N change this box onlyMiles travelled Y Y/N - change this box onlyLitres of fuel used N

PUBLIC TRANSPORTType of travel Classification Conversion factor - miles travelled Miles travelled per year kg CO2 Miles travelled per year kg CO2

1 Train National Rail 0.08594 80,880.80 6,950.812 Underground London Underground 0.11769 35.00 4.123 Air travel Domestic - AVERAGE 0.28616 2,044.80 585.144 Air travel Shorthaul - Economy 0.16030 7,060.60 1,131.805 Air travel Longhaul - Economy 0.14133 11,970.20 1,691.806 Air travel Longhaul - Premium economy 0.22613 6,927.20 1,566.46789

1 2

Year Year

1011121314151617181920

TOTAL 108,918.60 11,930.13 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00



REFRIGERANT GASES

Type of equipment Number of units Refrigerant type Refrigerant charge kg GWP Annual leakage rateTime used during footprinting year (yrs) Total CO2e kg

VERSATEMP 5 R22 0 761 1810 0 3% 1 20 66

Emissions from operation of refrigeration and air-conditioning equipment


VERSATEMP 5 R22 0.761 1810 0.3% 1 20.66VERSATEMP 2 R417A 0.761 1368 0.3% 1 6.25VERSATEMP 3 R417A 0.637 1368 0.3% 1 7.84VERSATEMP 15 R22 0.637 1810 0.3% 1 51.88VERSATEMP 8 R22 0.794 1810 0.3% 1 34.49VERSATEMP 3 R22 0.474 1810 0.3% 1 7.72VERSATEMP 1 R22 0.430 1810 0.3% 1 2.33VERSATEMP 1 R22 0.460 1810 0.3% 1 2.50VERSATEMP 5 R407C 0.460 1525.5 0.3% 1 10.53VERSATEMP 4 R407C 0.540 1525.5 0.3% 1 9.89VERSATEMP 3 R407C 0.794 1525.5 0.3% 1 10.90

PACKAGE TYPE AIR CONDITIONING UNIT 2 R22 6

1810 8 5% 1 1846 20CONDITIONING UNIT 2 R22 61810 8.5% 1 1846.20

SINGLE SPLIT TYPE AIR CONDITIONING UNIT 1 R407C 2.8

1525.5 8.5% 1 363.07TWIN SPLIT TYPE AIR

CONDITIONING 1 R410A 0.4301725 8.5% 1 63.05

SPLIT TYPE AIR CONDITIONING 1 R407C 2.3

1525.5 8.5% 1 298.24SPLIT TYPE AIR CONDITIONING 1 R22 2.5

1810 8.5% 1 384.63WATER COOLED CHIILER 1 R407C 6.5 1525.5 3.0% 1 297.47

HIROSS 1 R22 6 1810 8.5% 1 923.10HIROSS 2 R22 6.4 1810 8.5% 1 1969.28HIROSS 1 R407C 6 1525.5 8.5% 0.7 544.60%

V.R.V. AIR CONDITIONING 1 R407C 13.1 1525.5 8.5% 1 1698.64V.R.V. AIR CONDITIONING 1 R407C 15.3 1525.5 8.5% 1 1983.91

VRF 1 R410A 5 1725 8.5% 0.75 549.84CHILLER 1 R22 8 1810 3.0% 1 434.40

MITSUBISHI 1 R410A 5 1725 8.5% 0.75 549.84FUJITSU 1 R410A 5.5 1725 8.5% 0.5 403.22

Sub-total 12474.49

Installation emissionEmissions from installation of refrigeration and air-conditioning equipment

Type of equipment Number of units Refrigerant type Refrigerant charge kg GWPInstallation emission factor

VERSATEMP 1 R407C 0.540 1525.5 1.0%HIROSS 1 R407C 6 1525.5 1.0%

VRF 1 R410A 5 1725 1.0%MITSUBISHI 1 R410A 5 1725 1.0%

FUJITSU 1 R410A 5.5 1725 1.0%

Sub-total 367.14

Type of equipment Number of units Refrigerant type Refrigerant charge kgCapacity remaining at disposal (%)

Refrigerant recovered (%) GWP Total CO2e kg

86.2594.875

Emissions from disposal of refrigeration and air-conditioning equipment

Total CO2e kg8.2377

86.2591.53

Type of equipment Number of units Refrigerant type Refrigerant charge kg disposal (%) (%) GWP Total CO2e kg1IMI 2 R407C 4 80% 95% 1525.5 488.16

VERSATEMP 1 R407C 1 80% 99% 1525.5 6.59HIROSS 1 R407C 6 80% 95% 1525.5 366.12

Sub-total 860.87



Electricity Usage CalculationsHow do you want to enter your data?


How do you want to enter your data?Meter readings N Y/N - change this box onlykWh Y

Date / Month kWh Electricity used Year YearApril to May 2010 61,339.00 1 2May to June 2010 31,298.00 Total kWH Used Total kWH UsedJune to July 2010 70,348.00 788,370.01 0.00 0.00 0.00July to August 2010 75,077.00 To override the inputs - change these total valuesAugust to September 2010 63,771.00September to October 2010 67,316.67 Conversion factor - kWh to kg CO2September to October 2010 67,316.67 Conversion factor kWh to kg CO2October to November 2010 66,092.67 0.48152November to December 2010 71,391.67December to January 2011 69,417.00 kg CO2 generated kg CO2 generatedJanuary to February 2011 66,610.00 379,615.93 kg CO2 0.00 kg CO2February to March 2011 75,292.00 379615.93 0.00000 0.00000 0.00000 0.00000March to April 2011 70,417.00April to May 2011May to June 2011June to July 2011July to August 2011August to September 2011August to September 2011September to October 2011October to November 2011November to December 2011December to January 2012January to February 2012February to March 2012March to April 2012




WATERHow do you want to enter your data?Litres N Y/N - change this box onlyCubic metres (m3) Y

Year Year1 21 2

Water used in m3 Water used in m3Total annual water consumption 3,832.00

Cubic metres Cubic metres

Conversion factor - m3 to kgCO2g0.34000

kg CO2 generated kg CO2 generatedTotal CO2 generated 1,302.88 kg CO2 0.00 kg CO2

1302.88 0 0 0 0



RESULTS CALCULATOR


Total kWH Used CO2 Generated Miles travelled per year CO2 Generated CO2e GeneratedYEAR 1 420,154 76,981 112,758 13,347 13,703YEAR 2 0 0 0 0

0 0 0 00 0 0 0

SCOPE 1GAS TRAVEL & TRANSPORT REFRIGERANT GASES

0 0 0 0

2 year TOTAL 420,154 76,981 112,758 13,347 0 13,703

Total kWH Used CO2 Generated 484,949 kg CO2eYEAR 1 788,370 379,616 0 kg CO2e

TOTAL CO2eSCOPE 2ELECTRICITY

YEAR 1 788,370 379,616 0 kg CO2eYEAR 2 0 0 0 kg CO2e

0 0 0 kg CO2e0 0 0 kg CO2e0 0

484,9492 year TOTAL 788,370 379,616

WATERSCOPE 3

Water used in m3 CO2e GeneratedYEAR 1 3,832 1,303YEAR 2 0 0

0 00 00 0

2 year TOTAL 3,832 1,303

WATER

Summary table

Year 1 Year 2 Year 3Gas 76,981 0 0 0 0

kg CO2e generated

Gas 76,981 0 0 0 0Travel & Transport 13,347 0 0 0 0Refrigerant gases 13,703 0 0 0 0Electricity 379,616 0 0 0 0Water 1,303 0 0 0 0TOTAL 484,949 0 0 0 0


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rsa carbon footprint calculation 2010-2011

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