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Sustainable Battery Replacement for PV Systems in East Africa

Presentation on the need for battery replacement in PV systems, highlighting dangers, electrification projects, and current system status in East Africa. Recommendations for improving recycling practices and selecting high-quality PV systems.

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Sustainable Battery Replacement for PV Systems in East Africa

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  1. Replacement of batteries of PV-Systems GTZ 3rd EAST AFRICA REGIONAL ENERGY MEETING,Addis Ababa, Ethiopia, 27th – 30th October Presented by Andi Michel, Energising Development, GTZ

  2. Content • PV – Systems • Rationale • PV - Batteries • Dangers • Electrification projects • Status of replacement systems • Way forward / Knowledge exchange

  3. Charge controller PV-cells Consumer BATTERY PV-Systems 1000 cyclesapp. 3 years

  4. Rationale • Bilateral- and reginoal development measures lead to an increased dissemination of PV-Systems ( > 1.000.000) • Main environmental risk of PV systems are the lead batteries, especially the lead recycling • In many countries no regulated recycling or disposal system for batteries in place • A lot of available PV Systems are of poor quality with a low lifespan (battery < 300 cycles) • Lead price is increasing • Role of the informel sector in recycling will increase • But: Advantages of PV Systems outweigh the risks

  5. PV - Batteries • Batteries mainly consist of: lead metal (Pb), lead dioxide (PbO2), sulphuric acid, lead sulfate (PbSO4) • Lead is toxic, harmful to the environment and causes cancer • Sulphuric acid additional contains lead particles • Inappr. opening of batteries releases “lead-dust”

  6. Common recycling practise • Variation between rural and urban

  7. Battery recycling factories Bhubaneswar and Kolkata, India Source: Blacksmith Institute 2008 OK International 2008

  8. Electrification projects / status of replacement systems • Within EnDev 9 projects with PV - electrification component using batteries • Battery recycling system partially analysed • Honduras: replacement system for batteries through regular “battery replacement fee” • Your experience !

  9. Way forward • Increase user awareness • Analyse current recycling practise • Solar and car batteries • Select pv-systems with high quality • Develop improved recycling / replacement systems • Exchange within projects • www.endev.info recycling of PV batteries

  10. Thank you for your attention! Energising DevelopmentEnergie und Transport (4413)Deutsche Gesellschaft fürTechnische Zusammenarbeit (GTZ) GmbHPostfach 518065726 Eschborn Tel.: + 49 6196 79 4109Fax: + 49 6196 79 80 4109E-Mail: andreas.michel@gtz.deInternet: http://www.gtz.de Andreas Michel

  11. EnDev Projects – with PV systems

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