ClearWorld Energy 22 nd March 2009 ISB Middle School Global Issues Group With support from Mike Ashburn from ClearWorld Energy Global Issue No 1: Climate Change Reduce the Carbon Footprint of Your School

ClearWorld Energy Economic Development needs Energy Greenhouse Gases Global Warming Burning Fossil Fuels What can I do about it? Climate Change

ClearWorld Energy Carbon Dioxide (CO 2 ) is the main greenhouse gas Reducing a school’s carbon footprint Electricity Used Coal Commuting To school Oil Gas for Heating Water Waste Buy Carbon Offsets to offset all remaining emissions

ClearWorld Energy  It’s not that easy!!  Stage 1 - “Brainstorming” - fun, good for school projects - but does anyone take it seriously? Before anything gets done in real life, two more stages are needed:  Stage 2 - Conceptual Study - what costs/benefits of each idea? - what’s really practical at our place? - is it worthwhile?  Stage 3 – Engineering - full design study, “nuts and bolts” - how to finance, build and maintain it? Today we go past the Brainstorming into Stage 2

ClearWorld Energy Workshop Objectives  How do you figure out what is the carbon footprint of a school?  Use a carbon calculator  What options exist to reduce the carbon footprint of a school?  Assess the many options available  How would you apply the options to reduce the carbon footprint of a school?  Understand what constraints exist  Make some decisions!!  GROUND RULES - three “ P’s ”  Participate, Participate and Phones-off!! (Though you may want to use it as a calculator later)

ClearWorld Energy Get into groups of 2-3 round a computer, at one of the tables. This exercise is easier if you work with someone. Each group will each be given a CD-ROM with an Excel File which is a carbon calculator specially configured for schools – open the file and listen to the introduction You will be given a “data pack” document containing all the data you need to calculate the carbon footprint of “High Carbon International School” Enter the data in the worksheets, go to the results sheet and work out the total annual carbon footprint in tonnes of CO 2 for High Carbon International School – write down your answer and hand it to Wookie - first correct or closest answer WINS! The Prize is So Worth It!!!! Carbon Calculator – Stage 1

ClearWorld Energy Total carbon footprint for the school year - in tonnes of CO 2 You have 7 minutes only… First team to get the right answer to Wookie... WINS! What we need is……..

ClearWorld Energy.  Answer is 23,209 kg/day…but are we finished?  Don’t forget that we need to know the annual carbon footprint in tonnes of CO 2 :  (23,209 / 1000 ) x 180 days = 4,178 tonnes CO 2  About equivalent to the carbon in 5000 trees  About equal to 1000 cows (beef is bad!), or 2000 typical cars

ClearWorld Energy We have proposed 18 different ways of reducing the carbon footprint of a school – it’s your job to evaluate these: how do they work? pros and cons? what do they cost? and how much carbon (and money) can they save – if any? We need to compare them on the basis of dollars per tonne saved. Carbon Reduction – STAGE 2 – 10 Minutes

ClearWorld Energy The 18 solutions are described on the posters around this room, grouped into three categories of 6 solutions: REDUCTIONS, ON-SITE RENEWABLES and OFFSETS. o Start by understanding the UPFRONT COSTS per tonne of carbon saved. o Then understand the TOTAL SAVINGS over 5 years, again per tonne of carbon saved. o Finally, subtract the total savings from the upfront cost to get the OVERALL COST of each solution. Fill in Worksheet 1, you will need it later! Send your answers up to Mr Sheridan. o Start to think about which are the best ones. Negative Overall Cost values are savings, which is great!! Carbon Reduction – STAGE 2 – 10 Minutes

ClearWorld Energy. What can we learn from looking at this?  REDUCTIONS - is clearly the best – Overall costs are mostly negative – save carbon and save money!!  ON SITE RENEWABLES – have very wide variations in cost – Solar PV is very high – Heat Pumps are surprisingly low – all these solutions need upfront money.  OFFSETS – also vary a lot in price, some are cheap but they don’t save the school money, and you have to buy them every year for 20 years.

ClearWorld Energy Not all the solutions will work and most will be limited by something. Group A will look further at REDUCTIONS and will need to use the “additional data pack” which contains information about the constraints at High Carbon International School Group B will look further at RENEWABLE ENERGY and will also use the “additional data pack” about the constraints at High Carbon International School Group C will really study the OFFSET options and the school policies in the “additional data pack” and make some decisions about what to buy – and what not to buy!! Carbon Reduction – STAGE 3 – 10 Minutes

ClearWorld Energy For Group A and Group B the best way to tackle Stage 3 is to follow this method – (Group C has less Maths, but more thinking!!) 1.Start with the solution with the lowest overall cost – you can see this from looking at Worksheet 1. 2.Understand the constraint which applies. Use the posters and the “additional data pack”. 3.Calculate how many tonnes of carbon you can save this way and fill in the box on Worksheet 2. 4.STOP THERE – GO BACK – and find the second lowest cost solution try to fill in all the boxes in Column D and add up how much carbon you can save using all these solutions. 5.THEN – take the cost figures from Worksheet 1 to fill in the rest of the boxes in Column E & F - this bit is just calculator work but try to be accurate! Add up the total upfront cost and the total overall cost and get the information to Mr Sheridan. Carbon Reduction – STAGE 3 – 10 Minutes

ClearWorld Energy. What can we learn from looking at this?  REDUCTIONS is clearly the best economically – but at HCIS we can only save 855 tonnes of CO 2 this way, not enough. It’s a great deal though, it will only cost us USD$ 95,000 UPFRONT and over five years the school will save USD$ 662,500!  ON-SITE RENEWABLES – have the biggest impact – we can save 2,105 tonnes of CO 2 this way. Costs are higher though – it will cost us USD$ 2.14 million, and after taking account of the savings the overall cost is only USD$ 1.29 million.

ClearWorld Energy. What can we learn from looking at this?  This leaves = 1218 tonnes of CO 2 per year we still emit and the only solution left is: OFFSETS. School policies and the offset team have advised us to go for [Gold Standard VER’s] From Worksheet 1 we know these cost USD$ 20 each or USD$ 400 for 20 years. Cost of the offsets is 1218 x 400 = USD$ 487,200

ClearWorld Energy.  GRAND CONCLUSION With your help, we have made High Carbon International School into….. ZERO CARBON INTERNATIONAL SCHOOL  We have totally eliminated our carbon footprint of 4178 tonnes for a 20 year period  The upfront cost of this is USD$ 2.68 million  Once the savings are accounted for the overall cost to the school is only USD$ 1.11 million  LET’S TAKE THIS TO STAGE 3?

ClearWorld Energy Did we achieve our Objectives??  How do you figure out what is the carbon footprint of a school?  Use a carbon calculator  What options exist to reduce the carbon footprint of a school?  Assess the many options available  How would you apply the options to reduce the carbon footprint of a school?  Understand what constraints exist  Make some decisions!! But what are YOU going to do when you go back to your schools?

ClearWorld Energy What can I do about it? Speak with your school teachers about what your school can do to reduce its carbon footprint: >Carry out a survey to identify the existing situation and possible options >Ask vendors local to your school what solutions exist / cost >Develop a conceptual study of your own highlighting the costs and benefits to the school (including saved energy bills) >Find local companies and stakeholders (parents, city councillors etc) who can help you start the process – “a journey always starts with the first step” Find out if school management or parents at your school are interested to “offset” your emissions “Walk the talk” – at school and at home

ClearWorld Energy WELL DONE!!

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