Photovoltaic Water Pump (also known as Solar Water Pump) is primarily composed of a photovoltaic water-pumping inverter and a water pump. In practical applications, a solar panel array of corresponding power is configured based on the required head and daily water demand, collectively referred to as the Photovoltaic Water Pumping System.
The photovoltaic water pumping system operates fully automatically without the need for manual supervision. The system mainly consists of a photovoltaic water-pumping inverter, a solar panel array, and a water pump. It eliminates the need for energy storage devices such as batteries, replacing electricity storage with water storage, and directly drives the pump for water lifting.
The photovoltaic water-pumping inverter controls and regulates the system's operation, achieving Maximum Power Point Tracking (MPPT). When sunlight is sufficient, it ensures the system operates at rated capacity; when sunlight is insufficient, it sets a minimum operating frequency to ensure optimal utilization of the solar power generated.
The solar panel array is formed by connecting multiple solar modules in series and parallel, absorbing solar radiation energy and converting it into electrical power to provide the driving energy for the entire system.
The water pump draws water from sources such as deep wells, rivers, or lakes and delivers it to water tanks/pools or directly into irrigation or fountain systems. Various types of pumps can be used, including DC pumps, AC pumps, centrifugal pumps, axial-flow pumps, mixed-flow pumps, and deep-well pumps.
The photovoltaic water pumping system utilizes the enduring energy from the sun, operating at sunrise and resting at sunset. It requires no personnel supervision, no fossil fuels, and no integrated power grid, functioning independently with high reliability and safety. It can be paired with irrigation facilities such as drip irrigation, sprinkler irrigation, or subsurface irrigation to effectively address farmland irrigation needs, increase crop yields, save water and energy, and significantly reduce the costs associated with traditional energy and electricity consumption. As such, it has become one of the most effective ways to replace fossil fuels with clean energy, emerging as a new energy technology product that offers comprehensive solutions to global "food security" and "energy challenges." It is particularly aligned with the national strategy of building a "resource-efficient" and "environmentally friendly" society.
