FIGURE 2: ESSENTIAL COMPONENTS
❶ Solar panels. ❷ Panels stand with concrete foundation and anti-theft system. ❸ Protection cabinet with fuses, main contactor and surge protector device (lightning protection). ❹ Pump control box or solar pumping inverter. ❺ Ground rod connected to global ground circuit, including panels, stands, cabinets, controller and pump. ❻ Low level water sensor (stops pump immediately if water level drops). ❼ Submersible pump. FIGURE 3: OPTIONAL COMPONENTS
❽ Solar tracking stands (1 or 2 axis) (summer / winter). ❾ Possible input for a backup power generator, to be used in case of defect of solar panels (Generator is not permanently connected). ❿ Permanent power generatorfor backup or complementary source (cloudy / rainy season or sunrise / sunset hours). ⓫ Water level sensor in the main tank for automatic start/stop of the pump, or Water level sensor for automatic start/stop of the pump, plus water level indication with possibility of remote display. In most cases, it is not necessary to size each component. The recommended method is to indicate the expected performance
(daily flow and total head) on the request for quotation, thus letting the suppliers choose how to size the installation, and to
propose custom-fit equipment for the best price.
However, once the offers have been received, it is important to verify the sizing recommended by suppliers. For this, a
calculation method is presented in chapter B - Sizing and calculation.
