AC Solar Water Pump System

AC Solar Water Pump System Overview

AC solar water pumping system harnesses the sun's energy to power an AC water pump. It's made up of three main parts: solar panels (photovoltaic array), solar water pump inverter and AC solar water pump. Solar ac pumping system​ is a popular choice for watering crops in agriculture, providing water for homes, and fighting desertification. It's an eco-friendly, energy-efficient solution that's easy to install and maintain, and it provides reliable performance. 

The three-phase AC motor-driven water pump in the system can be used as a replacement for AC water pumps powered by mains electricity or diesel engines available on the market, and it has excellent compatibility. At the same time, the AC water pump breaks through the power limitations of DC water pumps, with a power range from 150 watts to 105 kilowatts, making it suitable for the needs of large-scale farmland irrigation, desert control, and reclamation.

VEICHI provides customized system services to meet the specific needs of users. We will carry out product selection and system configuration for you based on your specific application scenarios.

Working Principle of AC Solar Powered Water Pumping System

• Energy Conversion: The photovoltaic array absorbs solar radiation and converts it into direct current (DC) electricity.
• Inversion and Driving: The solar water pump inverter converts DC electricity into alternating current (AC) to power the AC water pump. The inverter also features maximum power point tracking (MPPT), which adjusts the output frequency in real-time according to the intensity of sunlight, ensuring the system operates efficiently under varying light conditions.
• Pump Operation: Draws water from the source and either fills a storage tank or directly feeds into an irrigation system.

Topology of AC Solar Water Pump System

System Components of AC Solar Powered Pump System

Solar Pump Inverter

* Intelligent IoT system
* True hybrid AC/DC power input
* Adapt to various types of solar pumps
* MPPT for maximum power output
* Equipped with IP54 cabinet, the cabinet supports customization
* Output power range: 0.75-710 kW
* Certifications: TÜV and CE

AC Solar Water Pump

* Power: 0.55-375kW
* Voltage: 350-415V
* Inlet/Outlet: 1"-12"
* Max Head: 3-638m
* Max Flow: 1.9-1488m³/h
*Types: Deep well pump/Surface pump

Solar Panel

* High-efficiency monocrystalline
* N-Type: Bifacial module
* Polycrystalline solar module
* Conversion efficiency up to 22.64%
* 25-year line warranty

PV Combiner Box

* IP Protection Class(IEC60529): IP65/IP66
* IK Impact Resistance Class(IEC62262): IK08
* Max Rated Voltage DC: 1000V DC
* Fuse Holder: 1000V DC 30A
* DC Switching/MCCB Capacity: 50~630A

Mouting Brack

* Strengthen and thicken
* High wear resistance
* 15 years warranty

Accessories

* DC breaker
* MC4 connector
* PV DC Cable

Diagrams of Popular AC Solar Well Pumping System Installs

Pumping into pressure tank

To maintain 24-hour pressure, batteries and a reverse action pressure switch are utilized. The pressure switch is connected to the VEICHI controller. Once the pump fills the pressure tank to the desired psi, the well pump is turned off. When there's a pressure drop (due to an open valve or timer), the pressure switch activates the pump to refill the tank and maintain the pressure. The table below indicates which VEICHI pump systems are ideal for well pump pressure. Generally, as the head increases (e.g., deeper well, higher pressure, steeper hill), the volume a pump can produce typically decreases along its pump curve.

Pumping into Storage + Booster Pump

Another widely-used method involves installing a battery-powered booster pump to pressurize the water from a storage tank. This pump features an integrated pressure switch that automatically turns the pump off when valves or timers are closed, and back on when the valves open. The battery for this booster pump can be charged either using a solar panel with a charge controller or a standard AC battery charger.

Pumping into Elevated Tank

This setup is the easiest way to achieve 24-hour water pressure for irrigation purposes (provided you have some elevation on your property). Run plumbing from the well pipe to your elevated tank, and install a check valve on the pump to prevent water from siphoning back down into the well from the tank. For every 2.31 feet of elevation the tank has above your plants, you get 1 psi of pressure. To supply drip lines, you need a minimum of 20 psi, which corresponds to a tank elevation of 45 feet. For sprinklers, you require 45 psi, which means the tank should be elevated by 100 feet.

Advantages of AC Solar Pumping System

Environmentally Friendly and Energy-Efficient: Utilizes solar energy, reducing reliance on traditional energy sources and producing no harmful substances.
High Reliability: The solar power source has few moving parts, ensuring stable operation.
Simple Installation and Maintenance: The system is designed simply, with low maintenance costs, making it suitable for unattended operation.
Good Compatibility: Can be used in conjunction with other energy sources such as grid power or diesel generators.
Economical: Compared to diesel pumping, it offers good long-term economic benefits.

Industrial Applications for AC Solar Pumping System

Small-scale Irrigation

Solar-powered irrigation pump system deliver water to areas lacking existing infrastructure. Irrigation water is essential for cultivating fruits, vegetables, and grains to sustain the global population.

Center Pivot Irrigation

Center pivot irrigation is ideal for covering extensive areas of farmland, ensuring uniform water distribution and reducing reliance on traditional power sources, thus offering an environmentally friendly and cost-effective irrigation option.

Drinking Water

Nothing surpasses the importance of drinking water, and selecting a safe and dependable water supply is of utmost significance. Annually, VEICHI's solar water pump system provides drinking and domestic water to numerous families and communities worldwide.

Livestock Watering

Quality water is crucial for livestock health, as it constitutes 80% of blood, regulates body temperature, and supports vital functions like digestion and nutrient absorption. VEICHI's solar water pumping system offers livestock high-quality water in an eco-friendly and cost-effective manner.

Solar surface pumps are ideal for driving fountains, offering a sustainable and low-maintenance solution for water circulation. They harness solar energy to power water features, reducing electricity costs and environmental impact.

Pond Aeration

Global Successful Project of AC Solar Pumping System

AC Solar Powered Water Pump System Video

How to Choose a Solar Panel?

Basic Collect Information

*The open circuit voltage of the solar panel cannot exceed the maximum voltage range of the controller.
*The operating voltage of the solar panel is within the MPPT voltage range of the controller.
*The solar panel power is slightly greater than the pump power, generally 1.3-1.5 times.

For Example

Pump Rated power: 11kW
Pump Rated Voltage: 380V
Solar Panel Rated power: 300W
Solar Panel Open-circuit Voltage: 45Voc
*Total solar panel power required: 11 kW x 1. 3 = 14.3 kW
*Total number of solar panels:14.3 kW ÷ 300 W= 47.6 pcs ≈ 48 pcs
Voc range :380V AC x1.414 ÷0.81 = 663.3 V DC
380V AC-Rated voltage of water pump
1.414-Lowest DC Voltage in Inverter
0.81-Voc÷Vmpx0.81
*Number of panels in a string: 663.3 V DC ÷ 45 Voc= 14.74 pcsx 15 pcs
*Number of strings that need to be connected in parallel: 48 ÷ 15 = 3.2 strings (3 strings are not enough,4 strings will cause waste)
48:16=3 strings
A string of 16 solar panels, 3 strings

Total power

48pcs*300W=14400W=14.4kW

Total Voc

16pcs*45VDC=720VDC
 

Solar Water Pump System Manufacturer Since 2005

As a professional manufacturer of AC solar water pump systems, VEICHI offers high-efficiency solutions that are specifically designed to maximize the utilization of solar energy. These systems are ideal for powering water pumps in a variety of applications, such as agricultural irrigation, livestock watering, and domestic water supply in off-grid areas.

With a presence in 85 countries worldwide, VEICHI solar pumping solutions have been successfully implemented across Africa, the Middle East, Southeast Asia, South Asia, and the Americas. We have successfully implemented our solar pumping solutions at 760,000 application sites worldwide, showcasing our extensive experience and global reach.

We regularly hold online and offline seminars to empower local agents with technical knowledge, enabling them to provide better localized services.