On this page, we describe the key missions we have conducted since the birth of ReNewGies. This is where you can find useful tools to help you design your solar pumping or solar energy system as well as all the information on the feasibility studies we carried out last year. 

DOWNLOAD OUR FREE-ACCESS SOLAR PUMPING tOOL :

This tool was created to help you design the optimal solar pumping system for your needs. This simple Excel-based simulator allows you to carry out a quick technical and economic analysis of your project. 

Download the French version below (English version coming soon):
renewgies_Outil_Pompage_Solaire.xlsm renewgies_Outil_Pompage_Solaire.xlsm
Taille : 1750,808 Kb
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download our free-access Off-grid solar TOOL:

This tool was created to help you design the optimal off-grid solar system for your needs (electrification, small solar installations etc...). This simple Excel-based simulator allows you to carry out a quick technical and economic analysis of your project. 

Download the French version below (English version coming soon):
renewgies_outil_PV.xlsm renewgies_outil_PV.xlsm
Taille : 671,984 Kb
Type : xlsm

Tell us what you think!

If you have any questions on our tools or need further assistance to design your solar solution contact us at contact@renewgies.org

Our Projects

From December 2017 to June 2018, in partnership with the UNHCR, ReNewGies conducted studies that addressed the feasibility of implementing solar pumping for drinkable water needs in 3 different refugee camps in Africa.

After field missions to establish a hydraulic diagnosis of the camps, the ReNewGies team created hydraulic models of each camp and simulated the implementation of solar energy using different scenarios (30% solar energy, 50% solar energy etc...) . Technical, economic and practical criteria were used to determine the best solution for the water supply systems studied. 

The main technical elements and recommendations put forward by ReNewGies are :

  • A hybrid system, will allow mixing solar energy with fuel/generators to pump water. This system will deliver more flexibility and reliability for the energy supply. It also avoids the need for additional storage (tanks or batteries) required when using 100% solar energy.
  • Better tracking devices and archive systems are crucial in order to measure water and fuel consumption.
  • Additional tests are necessary to determine pumping potential in all wells.
  • Continuous chlorination with automatic dosage is recommended.

- Farchana, CHAD -

The Farchana camp, located in Chad, is currently housing around 30 000 refugees. Sudanese refugees have now been living for nearly 15 years in the Farchana and Bredjing camps. Water consumption is 456 m3 per day, or 15,2 L per day per person. In Europe, the average consumption is 150 L per day per person.

 This lasting exile has transformed these camps into villages that are very similar to the region's traditional villages. The hydraulic infrastructure however, initially constructed in an emergency context, has not evolved into a coherent and efficient system. An upgrade of the water network and  an overhaul of the equipment has yet to be done. Furthermore, dependency on diesel makes the camp's water supply system costly.

Water tank in the camp

A mission on site was conducted in order to establish a hydraulic diagnosis of the camp. On field, measurement series were carried out to assess infrastructure and operating mode. Specific equipment was deployed to characterize flowrates, pressure, power consumption and global features.

This camp’s water supply system structure is relatively simple. Two independent circuits provide drinkable water to the camp. On one side, two pumps Fo1 and Fo2 pump water to the C2 tank while on the other side, one pump, Fo4, pumps water to the C1 tank through a separate pipe.

The two best options out of the eight simulated solutions were selected based on a set of five criteria: initial investment, annual savings, payback time, operational flexibility and simplicity, reliability of the energy supply.

ReNewGies strongly recommends a solution which substantially decreases fuel dependency while preserving a good level of flexibility and simplicity for operational staff and increasing system reliability. This recommended scenario concerns the replacement of the pumps inside Fo2 and Fo4 wells by new hybrid pumps in order to produce 50% of the water needed with solar energy.

             Key Figures of the Study:                         

Download the full report below :
(Version française)
Rapport Farchana (site)-compressed.pdf Rapport Farchana (site)-compressed.pdf
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- Breidjing, CHAD -

The Breidjing camp, located in Chad, currently housing around 44 800 refugees. Sudanese refugees have now been living for nearly 15 years in the Farchana and Breidjing camps. Water consumption is 672 m3 per day, or 15,0 L per day per person. In Europe, the average consumption is 150 L per day per person.

This camp’s water supply system structure is complex. It is divided in two parts, the main camp and the extension. The solar wells each have two pumps in series which is contrary to good practice. 7 reservoirs are filled simultaneously that makes modeling the hydraulic behavior particularly difficult, this complexity is also an issue for operators.

A mission on site was conducted in order to establish a hydraulic diagnosis of the camp.  On-field measurement series were carried out to assess infrastructure and operating mode. Specific equipment was deployed to characterize flowrates, pressure, power consumption and global features.

The two best options out of the eight simulated solutions were selected based on a set of five criteria: initial investment, annual savings, payback time, operational flexibility and simplicity, reliability of the energy supply.

Option A: 30% solar energy on Fo9 pump.
Option B: 50% solar energy on Fo9 and Fo11 pumps

ReNewGies strongly recommends Option B to substantially decrease fuel dependence while preserving a good level of flexibility and simplicity for operational people and increasing system reliability. 

This recommended scenario concerns the replacement of the pumps inside Fo9 and Fo11 wells by new solar pumps in order to produce 50% of the water needed with solar energy.

              Key Figures of the Study:      

Download the full report below:
(Version française)
Rapport Bredjing (site)-compressed.pdf Rapport Bredjing (site)-compressed.pdf
Taille : 1277,123 Kb
Type : pdf

- M'bera , MAURITANIA -

The M'bera camp, located in Mauritania, currently housing around 51 700 refugees. Water consumption is 1320 m3 per day, or 25,5 L per day per person. In Europe, the average consumption is 150 L per day per person.

 The water on this camp has multiple uses, domestic use, agriculture, livestock. This camp’s water supply system structure is very complex with over 11 tanks and long pumping times. That is why during the 2018-2019 period the water supply system will undergo important transformations. A new tank (300 m3) will be built as well as a new F6 pump. Many wells and tanks will stop functioning leaving only F1 and F2 from the old system (see figure). These changes will greatly simplify the way the water supply system is operated and improve its energy efficiency.

The two best options out of the eight simulated solutions were selected based on a set of five criteria: initial investment, annual savings, payback time, operational flexibility and simplicity, reliability of the energy supply.

Option A: 25% solar energy on F2 pump.
Option C: 50% solar energy on F2 and F6 pumps.

ReNewGies strongly recommends Option B to substantially decrease fuel dependence while preserving a good level of flexibility and simplicity for operational people and increasing system reliability. This recommended scenario concerns the replacement of the pumps inside F2 and F6 wells by new solar pumps in order to produce 50% of the water needed with solar energy.

Key Figures of the Study :

Download the full report below:
(Version française)
Rapport M'bera (site)-C.pdf Rapport M'bera (site)-C.pdf
Taille : 1303,826 Kb
Type : pdf

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