Solar Water Pumps & Off-Grid Pumping Systems in Australia

Industry-leading solar irrigation pumps designed for reliable, sustainable water movement across agricultural, residential, and commercial applications.

Designed, installed, and supported by Water Dynamics

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Maximise the power of the sun with our comprehensive selection of solar water pumps in Australia, designed to make irrigation more efficient, cost-effective, and sustainable. From crop and livestock watering to remote off-grid water pumping systems, our solutions are versatile and equipped to handle the harsh Australian climate.
We supply a large range of solar pumps from leading brands including Grundfos, Solar Pumptec, and Franklin Electric, offering both direct-to-panel systems and AC/DC hybrid solutions.

Proven Success: Hamilton’s Run Dairy Farm

“When the Hamilton family needed to completely renew the stock water system on their recently purchased property, they required a solution that met their high sustainability standards. Water Dynamics designed and installed a remote solar bore pump system capable of reliably extracting over 40,000 litres a day, completely off-grid. The family can now rest easy knowing their property has a reliable, low-maintenance stock water supply.”

Read the full case study

Why Switch to a Solar Pumping System?

Zero Energy Costs

Eliminate diesel fuel reliance and reduce grid electricity bills.

Off-Grid Reliability

Perfect for remote livestock and agricultural applications.

Low Maintenance

Fewer moving parts and no fuel lines mean lower ongoing costs.

Sustainable Future

100% renewable energy for a greener farming operation.

Struggling with High Running Costs or Lack of Power?

Spending too much on diesel for remote generator pumps?

Need to move water in a location with no grid access?

Looking to retrofit your existing AC pump to run on solar?

Our team can design a custom solar irrigation pump system tailored to your exact flow and head requirements.

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Jump to:

Types of Solar Pumps
Applications & Use Cases
Leading Solar Pump Brands
Frequently Asked Questions
Technical Brochures & Downloads

Types of Solar Pumps We Supply

There is no “one size fits all” when it comes to solar water movement. We supply various configurations to match your water source and delivery needs:

Submersible Solar Pumps
Designed to be lowered deep into boreholes and wells. These pumps “push” water to the surface and are highly efficient for deep-water extraction, commonly used for stock watering and rural domestic supply.

Surface Solar Pumps
Mounted above ground, these pumps draw water from surface sources like dams, rivers, and shallow tanks. Ideal for water transfer and lower-pressure irrigation systems.

Hybrid Pumping Systems
For operations that require 24/7 water movement, hybrid systems can run on solar during the day and seamlessly switch to AC grid power or a diesel generator at night or during heavy cloud cover.

Solar VFD Retrofits
If you already have a working AC pump, we can install a Variable Frequency Drive (VFD) that converts DC solar energy to run your existing 3-phase pump.

Applications & Use Cases

Our off-grid water pumping systems are utilised across multiple sectors throughout Australia:

Agriculture & Irrigation: Powering drip lines, centre pivots, and flood irrigation without the recurring cost of diesel.
Livestock Watering: Reliable “pump-to-tank” setups ensuring cattle and sheep have access to water in remote paddocks.
Residential & Communities: Supplying potable water to off-grid homes, cabins, and remote indigenous communities.
Water Transfer: Moving large volumes of water from dams to header tanks or across farming properties.

Our Trusted Solar Pump Brands

Water Dynamics supplies a large range of Solar Pumps from leading brands including Grundfos, NASTEC and Franklin Electric.

Grundfos

Grundfos offers top-notch irrigation, agriculture, and solar pumping solutions. Their solar pumps are engineered to withstand Australia’s challenging climate. If you’re looking to improve your livestock watering system using renewable solar energy or seeking a more cost-effective and eco-friendly alternative to diesel generator pumps, Grundfos provides unmatched reliability.
Download brochures below for more information or provide your contact details and we will be in touch to help you on your next project.

NASTEC

Distributed by Solar Pumptec

NASTEC offers a range of exceptional quality, Italian-made solar pumps. With over 100 models to choose from, they are capable of meeting demanding water supply needs—with flows up to 250m3/hr and heads up to 385m. Water Dynamics can provide complete NASTEC kits that include everything you need for irrigation or livestock watering.

Franklin Electric

Franklin Electric is a leader in renewable water movement. Their Fhoton solar pumping system is designed for remote livestock watering, while the SubDrive Solar system is equipped with integrated AC backup power—making it possible to switch to generator power if needed. Built with the latest technology, they are perfect for both high-volume irrigation and remote water transfer.

Frequently Asked Questions

Pumps Products: General Pumping Questions

Does Water Dynamics supply pumps for residential use or just for farms?

We provide the full range. Whether you need a small pressure pump for your home garden and rainwater tank or a high-capacity turbine pump for broadacre irrigation, we have a solution.

What brands of pumps do you stock?

We stock and service industry-leading brands known for their reliability in Australian conditions, including Southern Cross, Grundfos, Davey, Onga, and Lowara.

Can I use a pump to move water from a dam to a header tank?

Yes. This is a very common application. We usually recommend a centrifugal transfer pump or a solar-powered system if the dam is located far from a power source.

Do I need a single-phase or three-phase pump?

This depends on your available power and the size of the pump. Small domestic pumps are usually single-phase, while larger agricultural and industrial pumps require three-phase power for better
efficiency and torque.

Can one pump handle both my house and my stock troughs?

In many cases, yes. We can design a system with a variable speed drive (VSD) that adjusts the pump’s speed based on demand, ensuring high pressure for the house and steady flow for the troughs.

Bore & Submersible Pumps

What is a submersible bore pump?

It is a pump specifically designed to be lowered down a narrow borehole. The motor and pump are both underwater, which “pushes” the water to the surface rather than “pulling” it.

How do I know what size bore pump I need?

We determine this based on three things: the depth of your bore, the “yield” (how much water the bore can safely provide), and how much water you need at the top.

Can a bore pump handle sand or silt?

Standard pumps can be damaged by sand. If your bore is “sandy,” we use specialised floating-impeller pumps or sand-shroud protectors to prevent premature wear.

How deep can your submersible pumps go?

Our range covers everything from shallow 10-metre garden bores to deep industrial bores reaching several hundred metres.

What happens if my bore runs dry while the pump is on?

We can install “run-dry protection” sensors. These automatically shut the pump down if the water level drops too low, preventing the motor from overheating and burning out. Some pumps will come with dry run protection built into them.

Solar Pumping Systems

Are solar pumps reliable enough for livestock watering?

Yes, they are the standard for remote Australian stations. We often pair them with a storage tank so that you have water available 24/7, even on cloudy days or at night.

Do solar pumps need batteries?

Solar pumps typically operate only when the sun is shining, making water storage a more cost-effective and low-maintenance alternative to batteries or generator backups. This “pump-to-tank” approach ensures you have a reliable water supply available even when the sun isn’t out.

Can I run my existing AC pump on solar power?

Yes. We can often retro-fit a “Solar VFD” (Variable Frequency Drive) that converts the DC power from solar panels into AC power for your existing pump.

What maintenance does a solar pump require?

Maintenance is very low. You simply need to keep the solar panels clean and check the wiring once or twice a year to ensure no “critters” have chewed through the cables.

What is the lifespan of a solar pumping system?

Solar panels generally have a 25-year performance warranty, while high-quality solar pump motors typically last 10 to 15 years depending on water quality.

Technical, Installation & Service

What is a Variable Speed Drive (VSD) and why do I need one?

A VSD allows a pump to speed up or slow down to match the exact pressure you need. It reduces energy costs by up to 50% and stops “water hammer” in your pipes.

Why does my pump keep “cycling” (turning on and off rapidly)?

This is most commonly caused by a line leak, but it can also indicate a ruptured bladder or lost air charge in your pressure tank. You should investigate and service it immediately to prevent the pressure
switch or motor from burning out due to excessive cycling.

Does my pump need to be “primed”?

While surface-mounted centrifugal pumps must be manually primed, submersible pumps are naturally self-priming because they are submerged. Some jet pumps are also rated as self-priming, though manually adding water to them is highly recommended to speed up the process and protect the seal.

What is “Total Dynamic Head” (TDH)?

TDH is the total resistance the pump has to overcome. It’s a combination of the vertical height the water travels and the friction loss caused by the length and size of your pipes.

Can you automate my pump to start based on a tank level?

Absolutely. We use electric float switches, hydraulic floats or wireless tank sensors that tell the pump exactly when to start and stop, so you never have to manually check your tanks.

How often should my irrigation pump be serviced?

We recommend a professional inspection once a year, ideally before the peak summer irrigation season begins.

Why has my water pressure suddenly dropped?

Common causes include a blocked suction pipe, a blocked filter, a blocked impeller, a leaking pipe, or worn-out internal pump parts (impellers). Our technicians can perform a flow test to find the exact cause.

Do you offer “on-farm” pump repairs?

Yes. We have a fleet of service vehicles and experienced technicians who can come to your property to pull a bore pump or repair a surface pump on-site.

Can I monitor my pump from my phone?

Yes, by integrating with systems like Aquamonix Telemex, you can start/stop your pumps and monitor flow rates and pressure from anywhere in the world.

Is it worth repairing an old pump, or should I replace it?

If the pump is over 15 years old, a new high-efficiency model often pays for itself through lower electricity bills within 2–3 years. We can provide a “cost-to-repair” vs “cost-to-replace” analysis.

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Backed by Local Knowledge You Can Rely On

Water Dynamics has been supporting Australian irrigators and farmers for decades. We understand local water challenges and design solar pumping systems to perform long-term.

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