24
Geoff Calder Advisor to the Ministry of Education and Vocational Training Case studies on the use of alternative energy with ICT
| Date post: | 27-Mar-2015 |
| Category: |
Documents |
| Upload: | sara-bentley |
| View: | 229 times |
| Download: | 11 times |
Geoff Calder
Advisor to the Ministry of Education and Vocational Training
Case studies on the use of alternative energy with ICT
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
Case Studies
Kasulu Folk Development College 1999
Diesel generator powering computer class
4 Litres of diesel per hour
Regular break downs
Spikes and surges damaged computers
Often no fuel or battery
Kasulu Teachers College 2001
Kasulu Teachers College 2001
Biogas supplementing diesel generator
Mtabila Refugee Camp 2001
Solar system for Internet Centre
Mtabila Refugee Camp
Loading
Equipment Qty Watts Hrs per day Total watt hrs
Computers 10 150 10 15000
Printer 1 60 10 600
Lights 10 10 10 1000
Switch 1 60 10 600
Router 1 10 10 600
Total 17800
Description Qty Cost Total Cost USD
Solar panels (75w)
48 354,000 16,992,000
Batteries (2volt-1300 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
Specifications and cost
Thin Client Computers
Thin client computers
Tandala Teachers College 2007
Ndala Teachers College Ndala Teachers College 2007
Solar system for thin client computer network
Thin client network
Thin Client prototypes
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
Solar panels
Solar charger control 120 A
Generator
Charger / Inverter
Batteries
Load controller
12 v lighting
12v DC
Thin clients
240v AC
Ndala - Tandala
ModemRouter SwitchesServers
Internet
Description Qty Watts Hrs /day Total watt hrs
Printer 1 70 6 420
Lights 10 18 2 360
Switch 1 60 6 360
Router 1 10 6 360
Server 1 100 6 600
Projector 2 672
Total 2772
Ndala Teachers College AC circuit
Equipment Qty Watts Hrs/day
Total watt hrs
Thin client computers 20 40 6 4800
Scanner 1 15 1 15
Total 4815
Ndala Teachers College DC circuit
Total Watt/Hrs 2772 + 4815 = 7587 W/h for 6 hours per day
Qty Cost Total Cost USD
Solar panels (125w) 16 890,000 14,240,000
Batteries (12v - 210 amp/hours)
12 390,000 4,680,000
Inverter/Charger 1 1,600 1,600,000
Charge controllers 4 400,000 1,600,000
Electrical installation
7,000,000
Total 29,120,000
Kasulu Teachers College October 2007
Solar system moved from Mtabila
Solar panels
Solar charger control
Kabanga hydro 75KW
Charger / Inverter
Batteries
240v lighting
Thin clients 240v AC
Kabanga Teacher College 2007
ModemRouter SwitchesServers
240v AC
12v DC
Solar panels
Solar charger control 120 A
Batteries
Load controller
12 v lighting
12v DC
Thin clients
Total 12v circuit
Servers
Internet
Data
