This article summarizes the current status of photovoltaic water pumping, in terms of technical performance and economic viability, based on eight years of practical experience.

Halcrow/IT Power, ‘Small-Scale Solar Powered Pumping Systems: The Technology Its Economics and Advancement.’ Report, UNDP Project for the World Bank, 1983.

J.P, Kenna and W.B, Gillett. Solar Water Pumping: A Handbook, IT Publications, London, 1985.

IT Power, ‘Solar-Powered Pumping Systems: their performance costs and economics.’ Report to the World Bank, Washington, DC, USA, 1986.

UNDP Photovoltaic Information Programme (Consultants: IT Power), Workshops and Seminars held in Nairobi and Chaing-Mai. Report issued by UNDP, 1986, as ‘Photovoltaic technology for development.’

US Department of Energy Committee on Renewable Energy Commerce and Trade (CORECT) Solar Pumping Guide in Preparation (Sandia Laboratories), Photovoltaics: Investing in Development, conference in New Orleans, May 1987.

B. McNelis, M.R. Starr and A. Derrick, ‘An Evaluation of Photovoltaic Applications for Developing Countries’, Report to UNESCO, 1986. To be published by IT Publications as Solar-powered Electricity, £9.95.

Halcrow/IT Power, ‘Small-Scale Solar Powered Pumping Systems: The Technology Its Economics and Advancement.’ Report, UNDP Project for the World Bank, 1983.

J.P, Kenna and W.B, Gillett. Solar Water Pumping: A Handbook, IT Publications, London, 1985.

IT Power, ‘Solar-Powered Pumping Systems: their performance costs and economics.’ Report to the World Bank, Washington, DC, USA, 1986.

UNDP Photovoltaic Information Programme (Consultants: IT Power), Workshops and Seminars held in Nairobi and Chaing-Mai. Report issued by UNDP, 1986, as ‘Photovoltaic technology for development.’

US Department of Energy Committee on Renewable Energy Commerce and Trade (CORECT) Solar Pumping Guide in Preparation (Sandia Laboratories), Photovoltaics: Investing in Development, conference in New Orleans, May 1987.

B. McNelis, M.R. Starr and A. Derrick, ‘An Evaluation of Photovoltaic Applications for Developing Countries’, Report to UNESCO, 1986. To be published by IT Publications as Solar-powered Electricity, £9.95.

Halcrow/IT Power, ‘Small-Scale Solar Powered Pumping Systems: The Technology Its Economics and Advancement.’ Report, UNDP Project for the World Bank, 1983.

J.P, Kenna and W.B, Gillett. Solar Water Pumping: A Handbook, IT Publications, London, 1985.

IT Power, ‘Solar-Powered Pumping Systems: their performance costs and economics.’ Report to the World Bank, Washington, DC, USA, 1986.

UNDP Photovoltaic Information Programme (Consultants: IT Power), Workshops and Seminars held in Nairobi and Chaing-Mai. Report issued by UNDP, 1986, as ‘Photovoltaic technology for development.’

US Department of Energy Committee on Renewable Energy Commerce and Trade (CORECT) Solar Pumping Guide in Preparation (Sandia Laboratories), Photovoltaics: Investing in Development, conference in New Orleans, May 1987.

B. McNelis, M.R. Starr and A. Derrick, ‘An Evaluation of Photovoltaic Applications for Developing Countries’, Report to UNESCO, 1986. To be published by IT Publications as Solar-powered Electricity, £9.95.

Halcrow/IT Power, ‘Small-Scale Solar Powered Pumping Systems: The Technology Its Economics and Advancement.’ Report, UNDP Project for the World Bank, 1983.

J.P, Kenna and W.B, Gillett. Solar Water Pumping: A Handbook, IT Publications, London, 1985.

IT Power, ‘Solar-Powered Pumping Systems: their performance costs and economics.’ Report to the World Bank, Washington, DC, USA, 1986.

UNDP Photovoltaic Information Programme (Consultants: IT Power), Workshops and Seminars held in Nairobi and Chaing-Mai. Report issued by UNDP, 1986, as ‘Photovoltaic technology for development.’

US Department of Energy Committee on Renewable Energy Commerce and Trade (CORECT) Solar Pumping Guide in Preparation (Sandia Laboratories), Photovoltaics: Investing in Development, conference in New Orleans, May 1987.

B. McNelis, M.R. Starr and A. Derrick, ‘An Evaluation of Photovoltaic Applications for Developing Countries’, Report to UNESCO, 1986. To be published by IT Publications as Solar-powered Electricity, £9.95.

Halcrow/IT Power, ‘Small-Scale Solar Powered Pumping Systems: The Technology Its Economics and Advancement.’ Report, UNDP Project for the World Bank, 1983.

J.P, Kenna and W.B, Gillett. Solar Water Pumping: A Handbook, IT Publications, London, 1985.

IT Power, ‘Solar-Powered Pumping Systems: their performance costs and economics.’ Report to the World Bank, Washington, DC, USA, 1986.

UNDP Photovoltaic Information Programme (Consultants: IT Power), Workshops and Seminars held in Nairobi and Chaing-Mai. Report issued by UNDP, 1986, as ‘Photovoltaic technology for development.’

US Department of Energy Committee on Renewable Energy Commerce and Trade (CORECT) Solar Pumping Guide in Preparation (Sandia Laboratories), Photovoltaics: Investing in Development, conference in New Orleans, May 1987.

B. McNelis, M.R. Starr and A. Derrick, ‘An Evaluation of Photovoltaic Applications for Developing Countries’, Report to UNESCO, 1986. To be published by IT Publications as Solar-powered Electricity, £9.95.