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| − | Overview<br/>Electricity from PV-Diesel system generally costs around 0,5-0,8 Euro per KWh. Costs of Diesel generators alone are calculated to be around 0,35 Euro. The high costs of the hybrid system are mainly caused by the storage of the solar electricity (around 0,3 € per KWh). | + | = Overview = |
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| | One possibility to avoid high storage costs is to use the solar electricity only during daytime, with a small battery system for peak demands. At night or during rainy days the electricity is generated by the Diesel generator. | | One possibility to avoid high storage costs is to use the solar electricity only during daytime, with a small battery system for peak demands. At night or during rainy days the electricity is generated by the Diesel generator. |
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| | <br/> | | <br/> |
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| | + | = Experiences in Senegal ([[Energising_Development_(EnDev)|EnDev]]) = |
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| | In Senegal EnDev disseminates PV-diesel hybrid mini-grids for the electrification of villages with up to 500 inhabitants or 40 households. | | In Senegal EnDev disseminates PV-diesel hybrid mini-grids for the electrification of villages with up to 500 inhabitants or 40 households. |
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| − | The systems consist of (approximate total cost including installation in brackets): | + | <u>The systems consist of (approximate total cost including installation in brackets):</u> |
| | *a PV array with a capacity of 5.1 kW<sub>p</sub>consisting of 30 polycrystalline [[Solar Cells and Modules|PV modules]] with a capacity of 170 W<sub>p</sub>each (15,000 €) | | *a PV array with a capacity of 5.1 kW<sub>p</sub>consisting of 30 polycrystalline [[Solar Cells and Modules|PV modules]] with a capacity of 170 W<sub>p</sub>each (15,000 €) |
| | *a [[Batteries|battery]] bank consisting of 24 elements of 2 V of lead-acid tubular plate batteries; element capacity is 800 Ah C10 leading to a bank capacity of 38,4 kWh (15,000 €) | | *a [[Batteries|battery]] bank consisting of 24 elements of 2 V of lead-acid tubular plate batteries; element capacity is 800 Ah C10 leading to a bank capacity of 38,4 kWh (15,000 €) |
| | *a monophase generator of 10 kVA linked to the PV system (7000 €) | | *a monophase generator of 10 kVA linked to the PV system (7000 €) |
| | *a 5000 VA inverter (4,000 €) | | *a 5000 VA inverter (4,000 €) |
| − | *220 Volts low voltage three phase [[Alternating current|AC]] distribution through a mini-grid (10,000 € per km; 2-3 km per village) | + | *220 Volts low voltage three phase AC distribution through a mini-grid (10,000 € per km; 2-3 km per village) |
| | *system housing (6,000 €). | | *system housing (6,000 €). |
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| | = References = | | = References = |
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| − | [[Category:Hybrid_Systems]]
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| − | [[Category:PV_Mini-grid]]
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| − | [[Category:Mini-grid]]
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| | [[Category:Solar]] | | [[Category:Solar]] |
| | + | [[Category:Mini-grid]] |
| | + | [[Category:PV_Mini-grid]] |
| | + | [[Category:Hybrid_Systems]] |
One possibility to avoid high storage costs is to use the solar electricity only during daytime, with a small battery system for peak demands. At night or during rainy days the electricity is generated by the Diesel generator.
In Senegal EnDev disseminates PV-diesel hybrid mini-grids for the electrification of villages with up to 500 inhabitants or 40 households.
The total costs of installing a system is between about 70,000 € and 80,000 €.
