Roy Barlow

6. Commercially Available Equipment; Economics of Windpumps

Peter Fraenkel, Anthony Derrick, Varis Bokalders, 1993 .

1. Introduction; When to Use Solar Pumps

Bernard McNelis, Anthony Derrick, Roy Barlow, 1993 .

1. Introduction - Windpumps

Peter Fraenkel, Anthony Derrick, Varis Bokalders, 1993 .

Status and Experience of Solar PV Pumping in Developing Countries

Bernard McNelis, Anthony Derrick, Roy Barlow, 1991 .