Solar Powered DC Water Pump

What is a DC Solar pump?

A normal water pump runs with 220 V AC (grid power or diesel generator) while a DC solar pump is supplied directly by a solar array.
Compared to a 220 V pump the DC solar pump has a higher efficiency and in the long term lower pumping costs. A Solar pump doesn't need batteries, they work permanently, from morning until sunset. So there are nearly no replacement costs.
Solar Pumps are used worldwide for many applications.

What can I supply with a DC solar pump?

The main applications are drinking water supply, pond management and irrigation.

Depending on the necessary vertical lift and model they can pump up to 200 m³/day, while the needed DC voltage varies between 12 and 96 V.

Solar Pumps are able to pump from any water source:

Water pumping is a good use for solar energy, because you don't need any batteries to store the electricity: it simply pumps when the sun is shining. If you need a supply of water during the night, you just pump it into a header tank during the day.

Solar Pumps

Cost-efficient: Breakeven with diesel costs in 4 years!
Long life expectancy
Low maintenance
Reliable
Environment-friendly
Easy to use
Sustainable

Diesel Pumps

Expensive fuel
Fuel supply unreliable
Shorter life span
Need constant maintenance and replacement of parts
Maintenance often inadequate
Problems with noise, dirt, and fumes
Needs constant monitoring

Solar Pumps
can lift from as deep as 230 m up to 200 m³ per day

Features:

Brushless motor
Corrosion-resistant
All electronic components installed above ground
Low-maintenance

The solar pump is manufactured by LORENTZ, the world leading manufacturer for DC powered submersible pumps. A LORENTZ pump is simple to install, maintenance-free and high reliable.

To optimise the performance we offer
Solar Trackers:

A solar tracker is a device for orienting a solar panel towards the sun. The Tracker follows the sun through the day. A Solar Tracker will maximise the solar - electric performance and - depending on your location - will gain up to 50% of pumped water per day. With the tracker you can reduce the size of the solar array by as much as 35%.

Examples for the dimension of the needed solar array:

Vertical lift [m]	Discharge [Litre/day]	Voltage	Solar Array
10	1.000	12 V	80 Wp
10	10.000	24 V	160 Wp
10	50.000	96 V	800 Wp tracked
30	5.000	36 V	240 Wp
30	50.000	96 V	1.120 Wp tracked
50	10.000	48 V	480 Wp tracked
50	30.000	96 V	960 Wp tracked

Our LORENTZ pumps can discharge up to 200.000 litres per day!

How does it work? Technical details of a LORENTZ pump:

The controller controls the pump system and monitors the operational state.
It is protected against reverse polarity, overload and high temperature. In solar operation an integrated MPPT (Maximum Power Point Tracking) ensures the highest efficiency. In battery operation it will disconnect in time of low voltage and restart after battery has recovered. The enclosure is sealed and waterproof.
The submersible pump has a brushless motor, no electronics inside! The wetted materials are stainless steel, POM and rubber, the cable is drinking water approved. The pump end has a none-return valve and a optional dry-running protection. The helicopter rotor pump has just two main parts: The stator and the rotor, both are more resistant to damage by sand than any other pump system and it is self-cleaning.

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