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Vuna District School (1225-P1148)

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Our school commits to have a group of students spend at least 15 minutes, most weeks, picking up plastics. So, we keep our small patch on the earth as free of plastic as possible - its a small action we do to protect marine and other wildlife. We hope all schools in the world join us in doing the same.

Carbon Dioxide and Financial Savings
Document

Vuna District School

Annual school fuel saving (litres) (1)

Annual fuel saving 0 teachers' homes getting solar (litres) (2)

Annual cartage saving (litres) (3)

Total annual fuel saving (litres) (4)

Fuel saving over 30 years (litres)

Annual CO2 saving (kgs)

CO2 saving over 30 years (kgs)

Annual AUD saving (8)

Annual USD saving

Annual FJD saving

30 yrs AUD saving

30 yrs USD saving

30 yrs FJD saving

Total of All It's Time Solar Schools

Total annual school fuel saving (litres)

22,580

Total annual fuel saving 99 teachers' homes getting solar (litres)

4,550

Total annual cartage saving (litres)

3,387

Total annual fuel saving (litres) (4)

30,569

Total fuel saving over 30 years (litres)

917,070

Total annual CO2 saving (kgs)

77,943

Total CO2 saving over 30 years (kgs)

2,338,523

Total annual AUD saving (8)

$ 111,057

Total annual USD saving

$ 60,330

Total annual FJD saving

$ 129,282

Total 30 yrs AUD saving

$ 2,585,640

Total 30 yrs USD saving

$ 1,760,940

Total 30 yrs FJD saving

$ 3,878,460

Assumptions

Fuel cost in the islands in AUD/litre (5)

3.00

Fuel cartage consideration % (3)

0.15

Annual fuel consumption per teacher's home wired (litres) (2)

50.00

Annual generator maintenance consideration AUD (6)

1500.00

CO2 produced per litre of fuel burned (kgs) (7)

2.55

AUD to USD conversion rate used

0.70

AUD to FJD conversion rate used

1.50

Notes

(1) This is the annual fuel consumption based on reporting from the school at the time of school survey and affirmed at the time of installation. It refers to direct fuel use by the school, not including teachers' homes.

(2) The fuel consumption of teachers' homes varies considerable between homes and over time. Their sources of energy varies from their own small generators to shared generators, still some use kerosene for lighting and some small solar (often failing) for lights and charging. Recently on Beqa Island two of the 7 households at one school were each using 10 litres of fuel per week and some were using very little. So, we have chosen the conservative underestimate of each household saving of 2 litres per week (approx. 5 kgs of CO2).

(3) Most schools have a cost to get fuel to the school - usually small boats and car/truck on the mainland. The costs vary from small amounts to some schools where the cartage cost is almost the same as the cost of the fuel itself. The cartage consideration (dollar and carbon cost) is a percentage of the total fuel consumption, because it varies widely from school to school we have chosen quite a conservative estimate.

(4) Includes cartage and teachers' home consumption estimate that therefore contribute to the total CO2 saving. But we do not include the teachers home in the financial saving - rather we just refer to the savings from the school generator.

(5) This is the current published diesel price in Fiji presented in AUD. Often the islands pay a higher price, but that is not factored in, so generally the price will be a small under estimation.

(6) Generators often require repairs and eventually replacement. That cost varies significantly from school to school, so a conservative value is applied to represent this component of cost/saving for all schools. It is not possible to calculate that accurately for every school, hence the estimate across all.

(7) Burning diesel produces CO2 at a rate of 2.68 kgs/litre, whereas petrol produces it at a rate of 2.31 kgs/litre. We have chosen 2.55 as the approximate for our calculations because there is more diesel used than petrol in the school generators.

(8) The fuel savings in the teachers' homes are not included in the calculation of financial savings for the school. Although teachers are asked to make a small contribution each term (FJD70) for their now 24-hour power and this goes to the school to buy more education resources.

Specifications
Document
20 December 2019

Inverters

Inverter type

Panels

Panel type

Number of panels

Array (watts)

Mountings

Mountings

Brand

Batteries

Battery type

Number of batteries

Kilowatt hours

Batteries mounted

Partners

Solar contractor

General electric works constractor

Contacts
Document
Status First Name Last Name Position Questionnaire Role Phone Email FB Note Edited

Enter any potentially relevant or useful contacts aside from the school. For example, carpenter, home stays, transport, resort managers, marine biologists etc. Or details such as a Ministry or other notable person who attended the school. Whoever may have relevance or use in the future.

Charge data
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Docs & Links
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Works & Maintenance
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General: View QC Training Video
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General: STH Charger Collect.
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General: Waste
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General: Wrap up
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General: Suggestions to improve the QC system
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General: Daily update (when there is activity)
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General: Diagnosis
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General: Take and put up missing energy posters
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General: Add 4 amp breakers to qtrs
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General: List new wiring etc needed at the site
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General: Costs
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General: Changes to contacts
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VESS
Site QC Vasiti Talakubu vesspower@gmail.com +679 906 9151 Edit Delete
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Inspector Rob Edwards rob.e@iitime.org +61 413 734 916 Edit Delete
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General - Prep: Documentation
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General - Prep: Child Protection Policy
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General - Prep: Pop Up Blocker
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General - Prep: SEAH Policy
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Equip. Specs: Noark Install Video
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Equip. Specs: Noark/Deye 3.8 Settings
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Equip. Specs: Noark/Deye Calculator
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Equip. Specs: Noark/Deye Support. Call if needed
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Equip. Specs: SimliPHI 3.8 Installation Manual
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General - Site: Relevant Wiring Standard
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General - Site: Inverter and Battery Name Plates
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General - Site: Inform Inspector expected date you will leave site
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Array DC wiring: Cable ratings
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Array DC wiring: Enclosures
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Array DC wiring: Junction box
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Inverter Hybrid: Dongle Info
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Inverter Hybrid: Deye/Noark Commissioning
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Mainboard: Mainboard
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Battery System: Cable selection
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Battery System: Cable lengths must match in multi stacks
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Battery System: Documentation
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Battery System: Earthing
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Battery System: General
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Battery System: Signage
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Battery System: DC Breakers
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Commissioning: AS/NZS 3000
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Commissioning: Documentation
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Commissioning: Verification and Testing
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Waste Removal: Small Solar Systems
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VESS
Site QC Vasiti Talakubu vesspower@gmail.com +679 906 9151 Edit Delete
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Vuna District School Signed Agreement
Term Questionnaire
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