Access to Modern Energy Systems in Mozambique

Access to Modern Energy Services – Mozambique Equipment of Social Infrastructure with Photovoltaic Systems By Peter Adelmann and Carsten Hellpap

Status of Infrastructural Objects

Rural Hospitals in Mozambique have generally no electricity Energy service are based on Paraffin (light) Gas (refrigeration) Wood fire (sterilisation) Manual Power (water pumping)


Light: Paraffin lamps provide about 20-40lm In best cases women give birth to babies under light of paraffin lamps


Refrigeration: Gas refrigeration is used to keep vaccines cool. Gas supply is badly organized. One bottle last for 2 weeks


Water pumping: Hand pumps are common Water supply doesn‘t seems to be a problem


Sterilisation: Sterilisation is done with firewood based stoves No major problems are reported


Grid connected health centers often face power cut problems On average every second week with an outage period of 1-7 days.


Rural schools generally have no access to electricity to provide: Light for evening classes Light for security Electricity for teachers home & dormitories Or to run computers

for teaching & administration


Few rural schools have solar electricity. Status: System quite good lamps often fail after

3 month and destroy whole performance System cost 10K$

Status of SHS

Status: Very poor module No charge controller AC-load over inverter Bad connectors & installation Bad load

Status SHS

Problem analysis: Poor know how on installer & user side People spend more money as necessary for poor energy service

Suggestion: Solar System for Health Centers & Schools

Recommende System properties: High Quality, long lasting & energy saving load small & inexpensive

Suggestion: Solar System for Health Centers

Refrigerator High performance (Danfoss compressor) Very low energy demand (very long life span) Consumption 120-180Wh/d


Light High performance CFL

Low energy demand (life span 10.000h)

About 50-70lm/W High perfrmance LED

Very low energy demnad (lifespan >20.000h)

About 80-150lm/W


Disinfection No time pressure since current solution is working Future possibilities: Gas stove Solar cooker


Water pumping No time pressure since current solution is working Future possibilities: Solar pump

Suggestion: Solar System for Health Centers (DC system)

System sizing & cost for hardware Load Location pc. Power [W] Service Usage [h] Engery [wh/d]

Light All rooms 4 5 250lm 6 120Light Birth Place/ Treatment 2 15 900lm 3 90

Cellphone 1 2 1 2Refrigerator 1 60 3°C 3 180

Sum 392Ah/day 32,67Material Cost

Module [Wp] 200 800Battery [Ah] 233,33 466,67Regulator [A] 40 90Lamps [pc] 8 80Refrigerator 1 700

Others 500Installation 500

Total cost[$] 3136,67


Risk: Private misuse of system (Drinks in refrigerator, charging of private phones etc.) Possible solution: Use of excess energy will be allowed (battery is kept full to generate excess energy)

Suggestion: Solar System for Schools

Demand: Light (similar to hospital) Security light (LED) Computer & Internet


Computer & Internet: In Mozambique it is possible to get relative fast and inexpensive internet over GPRS


System sizing & cost for hardware Light

Load Location pc. Power [W] Service Usage [h] Engery [wh/d]Light CFL Classroom 2 15 900lm 4 120Light CFL Classroom 4 11 700lm 4 176

Outdoor LED 1 1 40lm 12 12Sum 308

Ah/day 25,67Material CostModule [Wp] 170 680Battery [Ah] 183,33 366,67Regulator [A] 20 60Lamps [pc] 6 60

Others 400Installation 500

Total cost[$] 2066,67


System sizing & cost for hardware Administration Load Location pc. Power [W] Service Usage [h] Engery [wh/d]

Light CFL Secretary&Director 2 7 350lm 4 56Computer Asus Secretary&Director 1 10 N270 MC 6 60

Outdoor LED 1 1 40lm 12 12Sum 128

Ah/day 10,67Material CostModule [Wp] 70 280Battery [Ah] 76,19 152,38Regulator [A] 10 50Lamps [pc] 2 20Computer 1 400Others 300

Installation 300 Total cost[$] 1502,38


System sizing & cost for hardware DC-Computer & DC-Projector Load Location pc. Power [W] Service Usage [h] Engery [wh/d]

Projector Acer Classroom 1 40 150 ANSI Lumen 4 160Computer Asus Classroom 2 10 N270 MC 6 120

Sum 280Ah/day 23,33Material Cost

Module [Wp] 170 680Battery [Ah] 166,67 333,33Regulator [A] 10 50Lamps [pc] 2 20Computer 2 800Projector 1 600Others 300


Suggestion: Solar Home System

Possible purchase hardware cost:

Load Location pc. Power [W] Service Usage [h] Engery [wh/d]Light LED Inside 1 2 150lm 3 6Light LED Outside 1 1 40lm 4 4Cellphone 1 1 1 1

Radio 1 0,3 3 0,9Sum 11,9

Ah/day 0,99Material CostModule [Wp] 6 18Battery [Ah] 7,08 7,08Regulator [A] 5 5Lamps [pc] 2 4

Radio 1 3Others 0


Thank you for your attention

Access to Modern Energy Systems in Mozambique

Documents

Transcript of Access to Modern Energy Systems in Mozambique