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Geoff Calder Advisor to the Ministry of Education and Vocational Training Case studies on the use of alternative energy with ICT.

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Presentation on theme: "Geoff Calder Advisor to the Ministry of Education and Vocational Training Case studies on the use of alternative energy with ICT."— Presentation transcript:

1 Geoff Calder Advisor to the Ministry of Education and Vocational Training Case studies on the use of alternative energy with ICT

2 Case Studies Kasulu Folk Development College 1999
Kasulu Teachers College 2001 Mtabila Refugee Camp 2001 Ndala Teachers College 2007 Tandala Teachers College 2007 Kasulu Teachers College 2007 Kabanga Teachers College 2007

3 Kasulu Folk Development College 1999
Diesel generator powering computer class

4 4 Litres of diesel per hour
Regular break downs Spikes and surges damaged computers Often no fuel or battery

5 Kasulu Teachers College 2001

6 Kasulu Teachers College 2001
Biogas supplementing diesel generator

7 Mtabila Refugee Camp 2001 Solar system for Internet Centre

8 Mtabila Refugee Camp Loading Equipment Qty Watts Hrs per day
Total watt hrs Computers 10 150 15000 Printer 1 60 600 Lights 1000 Switch Router Total 17800

9 Specifications and cost
Description Qty Cost Total Cost USD Solar panels (75w) 48 354,000 16,992,000 Batteries (2volt amp/hours) 24 340,000 8,160,000 Trace 48 volt inverter 1 4,000,000 Solar panel construction 6,000,000 Electrical installation 2,000,000 Total 37,152,000

10 Tandala Teachers College 2007
Thin Client Computers Thin client computers

11 Ndala Teachers College 2007
Solar system for thin client computer network

12 Thin client network

13 Thin Client prototypes

14 Comparison Desk Top Thin Client Energy 120 Watts 40 watts Voltage
240v AC 12v DC UPS Required None required Noise Fans None Heat Very little

15 Ndala - Tandala 12 v lighting Solar panels Solar charger control 120 A
12v DC Batteries Thin clients Load controller Charger / Inverter 240v AC Modem Router Switches Servers Generator Internet

16 Ndala Teachers College AC circuit
Description Qty Watts Hrs /day Total watt hrs Printer 1 70 6 420 Lights 10 18 2 360 Switch 60 Router Server 100 600 Projector 672 Total 2772

17 Ndala Teachers College DC circuit
Equipment Qty Watts Hrs/d ay Total watt hrs Thin client computers 20 40 6 4800 Scanner 1 15 Total 4815 Total Watt/Hrs = 7587 W/h for 6 hours per day

18 Qty Cost Total Cost USD Solar panels (125w) 16 890,000 14,240,000 Batteries (12v amp/hours) 12 390,000 4,680,000 Inverter/Charger 1 1,600 1,600,000 Charge controllers 4 400,000 Electrical installation 7,000,000 Total 29,120,000

19 Kasulu Teachers College October 2007
Solar system moved from Mtabila

20

21

22 Kabanga Teacher College 2007
Solar panels 240v lighting Solar charger control Charger / Inverter 12v DC Thin clients 240v AC Batteries 240v AC Modem Router Switches Servers Kabanga hydro 75KW

23 Total 12v circuit 12 v lighting Solar panels
Solar charger control 120 A 12v DC Batteries Thin clients Load controller Servers Data Internet

24 Thank you geoff@caldertowers.com


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