Presentation on the 20 solar villages

in the South of Algeria
 

 Introduction wpe5.jpg (16341 octets)

Sonelgaz have gone down the solar route for some 20 villages in the rural electrification programme with the aim of kick-starting the use of renewable,and particularly photovoltaic, energies.

These villages, situated in the South, with a small number
of households, were typified by their isolation and
their remoteness from any communications network.

Supplying them by conventional methods (diesel, transmission grid), in addition to excessive start-up costs, would have posed the problem of trucking in the fuel, and in the case of the grid, of undoubted difficulties in constructing and maintaining the overhead lines .
 

Photovoltaic solar energy might also constitute an alternative for a subsequent programme.
 

 wpe3.jpg (36453 octets)
Advantage in using photovoltaic energy (PV) for rural electrification :
 

One of the strengths of PV is to be found in its decentralised use, cutting out the cost of transporting the energy produced.
 

This is particularly true for supplying isolated consumers in areas of low population density, where the demand consists essentially in satisfying basic energy requirements (light, refrigeration, pumps, television, radio).

 

Other notable characteristics of PV are:

Mean production of photovoltaic systems in Algerian conditions: in kWh/day.                                      

Systèmes

360 wc

720 wc

1440 wc

Alger

1.9

3.8

7.6

Ghardaïa

2.3

4.6

9.3

Tamanrasset

2.5

5

10

 

 Technical options :

The PV installations used are of the semi-collective type, of unit power 1.5, 3 or 6 kWpk, capable of supplying 3, 6 or 12 households respectively.

The PV kit will comprise 110 V dc PV modules; a 110 V dc regulator cabinet; a 230 V ac distribution cabinet; 110 V dc batteries; and 110 V dc / 230 V ac inverters.

 Technical specifications of the installations
The typical specifications of installed PV systems are as follows:

 

Installations (kWpk)

D.c. voltage
(V dc)

Batteries (Ah)

Inverter (kVA)

A.c. voltage (V ac)

Useful energy (kWh/day)

Number of households

1.5

110

250

1.5

230

#7

3

3

110

500

3

230

#14

6

6

110

1000

6

230

#28

12

 

For a consumption per household estimated at around 1.5 kWh/day (minimum) to 2 kWh/day (maximum), representing the consumption of :

Physical parameters of the programme:
The table below gives the key elements in the overall programme


Peak installed power


Apparent installed power



*Cap of installed batteries
 



Daily energy production
 


No. of systems
 


Rating of system (kVA)


No. of 110 V dc batteries


Rating of batteries (Ah)


No. of battery elements

No. of inverters

Rating of inverters (kVA)



No. of photovoltaic modules
 



*Cap of household connection
 



Peak power perhousehold

No.
1.5

No.
3
 

No.
6
 

No. 250

No.

500

No.

100

Nbr

1.5

Nbr

3

Nbr

6

453 kwc

453 Mwa

75 500 Ah

2174 kWh

108

10

50

48

18

10

50

48

5940

108

10

50

48

9664

906

500Wpk

 

*PS : Puissance
*Rép : Réparation
*Cap : Capacité

*Prd :  Production

This solar rural electrification involved 20 villages spread out among the 4 wilayas of the South: Tamanrasset, Tindouf, Illizi and Adrar. The physical parameters for this as follows:

 

Wilayas

Peak power (Wpk)

Number of systems

Types of system

 Number of households

 1.5 kWpk

 3 kWpk

 6 kWpk

Tamanrasset

277.5

60

3

23

34

555

Illizi

75

20

6

6

8

150

Tindouf

78

20

0

14

6

156

Adrar

22.5

08

1

7

0

45

 

In addition to the acquisition of the range of electrical equipment detailed above, setting up this programme required the following factors to be taken into account: 
 

Weight of the framework used

Weight of the photovoltaic equipment

No. of lorry journeys

Volume of concrete used

Amount of acid used

# 468 tonnes

# 330 tonnes

# 100 rotations

# 1872 mètres

# 106 000 litres

 wpe4.jpg (213094 octets)

Energy assessment

Since commissioning, the overall consumption has reached the following levels:  

Wilaya

Consumption

Tamanrasset

149 703 kWh

Illizi

23813 kWh

Tindouf

85882 kWh

Adrar

25145 kWh

Total

284 543 kWh

 

N.B.: The systems not yet set up in the following villages are not included:

The 20 villages involved are as follows:

 


Wilaya

District

 


Villages

No. of households set up
(connection capacity)

No. of systems per type

1.5 kWpk

3 kWpk

6
kWpk

Tindouf 

Gara Djebilet

Gara Djebilet

66

0

9

1

Oum el assel

Hassi mounir

42

0

5

1

Tindouf

Daya el khadra

48

0

0

4

Adrar

Timimoun

Tala

33

1

5

0

Metarfa

Hamou moussa

12

0

2

0

Illizi

Illizi

Tihahiout

24

0

0

2

Ifni

15

1

0

1

Imehrou

33

1

3

1

Oued semen

30

0

1

2

Tamadjart

48

4

2

2

Tamanrasset

Ain Amguel

Moulay Lahsen

18

0

1

1

Arak

123

1

6

7

Idles

Amguid

102

0

1

8

Tamanrasset

Indellagh

30

0

1

2

Tahifet

123

1

6

7

Tahernanet

60

0

4

3

Tazrouk

Tintarabin

69

1

3

4

Tazrouk

In blel

 

0

1

2