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Eternal Lanterns Project -- portable solar-LED lighting solutions for rural China --

Eternal Lanterns Project -- portable solar-LED lighting solutions for rural China -- Ilan Gur, Ph.D. Candidate Becca Jones, Ph.D. Candidate Jianping Du, MBA Candidate Zach Gentry, MBA Candidate Advisors: Dean Richard Newton, School of Engineering

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Eternal Lanterns Project -- portable solar-LED lighting solutions for rural China --

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  1. Eternal Lanterns Project-- portable solar-LED lighting solutions for rural China -- Ilan Gur, Ph.D. Candidate Becca Jones, Ph.D. Candidate Jianping Du, MBA Candidate Zach Gentry, MBA Candidate Advisors: Dean Richard Newton, School of Engineering Evan Mills, Staff Scientist, Lawrence Berkeley National Laboratory

  2. Abstract The purpose of this research effort is to provide a qualitative assessment of the utility and viability of a portable, solar powered LED lantern in addressing household lighting needs in rural China. We utilized qualitative interviews and surveys, and collected data from a variety of sources including research papers and government publications in China. As a result, we produced specific recommendations for companies, entrepreneurs, and researchers in this industry. More generally, we also provided insight to a broader audience who are interested in the promotion of sustainable lighting for rural development in China.

  3. Primary Research Question • Is a portable, solar-powered lighting solution appropriate and competitive for addressing household lighting needs in rural China, as assessed in the context of: • basic sociological user needs • alternative solutions • market forces • the central government’s goals and initiatives in rural development and the promotion of renewable energy sources? • Research results presented in a solar-LED symposium in Beijing, China at trip’s conclusion

  4. Trip Itinerary – Summer 2004 Itinerary: • August 1-8: Beijing • China-U.S. Renewable Energy Workshop (sponsored by NREL) • Meetings with industry, NGO and government representatives • August 9-21: Tibet • Meetings with NGO and industry reps; visit to Tibet Solar Research Center • Field research: visits and interviews at 6 villages in the Lhasa area of Tibet • August 22-25: Beijing • Seminar with experts in PV and LED industries

  5. Pre-Existing System of Use • Main Source of Light • Solar Lighting (CFL bulbs) • Candles • Diesel Lanterns • Flashlights • The Good: Electricity • Only 25-30 million in China without electricity (less than 500,000 in Tibet) • Solar home systems common in remote areas • The Bad: Diesel Lamps • Extremely dirty and poor light quality

  6. Solaris Lantern: Lessons Learned • Portability seems highly valued aspect of lighting system • Some villagers expressed preference for portable lantern over solar home systems • BUT… portable solar system NOT prevalent in Lhasa street market

  7. Portable LED Flashlight: Lessons Learned • LED light valued as FLASHLIGHT lighting source • LED bulbs are a possible solution to flashlight needs, especially combined with solar / rechargability • Battery disposal a significant environmental issue…  70 batteries/household/yr x ~7,000,000 households = ~ 500,000,000 batteries/year!

  8. Other Important Observations • Disconnect between issued system specs and specific end-user needs • Inability for remote villagers to take advantage of warrantees • Need for additional education/ maintenance (need localized system repair and maintenance) • Government subsidy programs need power delivery and “customer” satisfaction incentives

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