## Installation

Instructions for the installation are given in Section 5.5.7, with special attention being paid to the safety advice during the fitting of the modules and batteries. As there is no shortage of space, the frame for the modules will be built in such a way that there is no shading between the rows: the panels […]

## Calculating losses

Voltage losses: Once the general plan has been established, we see that between the modules (connected to a junction box under the frame) and the battery, the actual distance will only be 6 m. This gives an ohmic loss in the wiring of 92 mV/m times 6 m = 0.55 V with 2 x 10 […]

## Wiring and installation of components

With these two regulators, the PV array is therefore to be divided into two subgroups of seven or eight panels. The power of a group of seven panels in parallel would be 7 x 2.85 = 20 A, and for another group of eight panels, 8 x 2.85 = 23 A. With the help of […]

## Charge controller

Taking into account the voltage and the power of the system required and the type of battery, it would seem best to have a series charge controller with equalisation charge. For this type of regulator, the maximum charge current should be taken as equal to 1.5 times the operating power of the modules in 24 […]

## Battery

The capacity of the battery will depend mainly on the need for autonomy without solar generation. Periods of bad weather in the region are mainly limited to October when there are often rainy spells that can last for 3 or 4 days. During the rest of the year, it is rare for the sky to […]

## Main system PV modules

First we should make an approximate calculation of the power in Wp to be applied (calculation described in Chapter 1). The loss coefficient will be taken as 0.7 initially. The daily electrical con­sumption is 4590 Wh and the minimum total solar radiation is 4.4 kWh/day, therefore 4 59 Pp = = 149 kWp (5-32) If […]

## Pumping system Choice of equipment

As the well is 30 m deep, the pump must be of the submerged type (surface pumps are only generally suitable for wells of less than 6 m depth). Its PV system will be independent of the main system. The pumping requirements are not very demanding: there are many suitable pumps available on the market. […]

## Best exposure for the modules

There are two independent PV systems to be installed, the main system and the pump system. The modules for the two systems do not necessarily have to be oriented in the same direction, since they do not have the same requirements from this point of view. The pump will need more energy in the summer […]