Water Pump

The water pump moves the water from the water source, a river, dam, or bore, through pipes to either a point of usage or a storage facility, such as a water tank or an irrigation system. An electric motor drives the pump in a solar-powered pumping system, and the solar array provides the power source. […]

Solar Water Pump Inverter

An inverter is a DC-to-AC converter. AC solar pumping systems are growing in popularity, with new AC solar water pumping systems able to power standard 3-phase pumps. If the pump is to be powered by an alternative power source, such as the electricity grid, a diesel generator, or a wind turbine, an AC inverter-based system […]

Pump Controller

The term ‘pump controller’ can be used to mean any one of the following. The controller functions to turn the pump on and off electrically. This device can be a programmable timing device, or its ‘on-off’ function can be activated by a ‘float’ switch triggered by the water storage level in or discharge into a […]

Maximum Power Point Tracker – MPPT

The power output of a solar array is used or manipulated by the components to which it is connected. A maximum power point tracker (MPPT) can be installed between the array and the electric motor to match the PV array’s output with the required current or voltage of the motor to be operated. An MPPT […]

Solar Array Output

The amount of power a solar array generates is directly proportional to the solar resource available throughout the day. Two critical calculations can be performed to determine the system yield: Power output (instantaneous output)Power output = instantaneous solar radiation (kW/m²) x rated array power (kW) x system efficiency Energy output (output over time)Hourly energy output […]

Shading on Solar PV Array

If the solar array is shaded in any way, its power output will be reduced. If there is continuous shading at the same position on the solar modules, the modules can develop ‘hot spots’ that can damage them permanently. Incidental shading is not static, as it moves throughout the day and year, following the sun’s […]

Solar Array Positioning

A solar module will receive the most solar radiation and produce the greatest amount of power if it faces directly to the sun; however, the sun moves throughout the day and the year. Daily movement: Each day, the sun moves from the east, where it rises, to the west, where it sets. The compass position […]

Configuring PV Array

A solar array is the electrical combination of several solar modules. The power output of this array will be the sum of the power outputs of the combined solar modules. The method by which the solar modules are configured will determine the electrical output characteristics (namely, current and voltage) of the solar array. Solar modules […]

Solar Water Pumping System Configurations

There are four main configurations for solar pumping systems. Note that the configurations and applications detailed below are not exhaustive; they are designed to give an overview of what’s available. You may wish to seek further information from somewhere else. Solar Alone This configuration is one of the most straightforward, commonly deployed, and cost-effective designs. […]

Key Components in a Solar PV Pumping System

A typical solar-powered pumping system contains the following equipment: a solar array, which converts sunlight into electricity; system controllers, which control the array and the pump; an electric motor, which drives the pump; and a water pump, which moves the water from a source to its delivery point. The solar array provides the energy supply […]