Solar vs Diesel

When it comes to installing an efficient, cost-effective and reliable water pumping system –ePump has it in the box.

Our ePump comes in a simple to install kitset, to deliver water in even the remotest areas of your farm.

It can pump up to 120 metres of head, up to 30 litres per minute in daylight hours and can withstand the harshest environments. The ePump is able to fill stock troughs on hillsides up to 120 metres on hill country and unlike other options it can draw both clean and dirty water.
It is a standalone, fully automatic water pumping system that provides an innovative option for farmers faced with a choice – solar or diesel.

There are distinct differences between the two power sources when it comes to price reliability and overall ease of use.

Diesel pumps are typically lower cost to install but higher for operation and maintenance; solar is the opposite, with more of an outlay to begin with, and less on-going costs.

We compare the two systems to deliver an overall picture on the benefits of pumping, using the power of the sun.

A case study of 11 New Zealand farms, conducted by the Ministry for Primary Industries, showed installing a stock water reticulation scheme increased stocking rate by 0.5 SU/ha, and lambing percent by 12%. The ePump is fully automatic and operates like a standard pumping system. Though it has some smart features to maximise pumping time and protect the motor. You will no longer have to spend time traveling to refuel your pump, thanks to the set and forget system, you will have peace of mind, even when heading away on a summer holiday.

Farmer Stu Harper said the pump had been a “game changer” in the way he delivered water to his farm.

“We now have a reliable pump system at the back of our farm with no electricity required. The ePump automatically pumps water without the need for us to travel out to the remotest part of the farm,” he said.

“[It] enabled us to lift our stocking rates and be more productive. We’ve also reduced our carbon footprint by using a solar system which is an environmentally friendly solution.”

No electricity or batteries are needed to run the ePump solar pumping solution, and it does not require an electrician or builder for installation.

This is an environmentally responsible alternative that is also labour efficient with no on-going power or fuel costs.

With an ePump, however, the flow rate is dependent on sunlight hours and intensity.

Solar pumping has clear advantages but the differences are more evident as fuel costs rise world-wide.

Diesel pumps have the advantage of pumping water on demand and predictably, also in varying daily capacity.

The start cost is lower for diesel engines, on the down side the diesel pumping system relies on fuel and is therefore at the mercy of price rises over time.

Diesel pumps also require regular maintenance, linked to the hours of operation and have a fairly short life expectancy.

This is of course highly dependent on the level of maintenance, the operating conditions and the quality of the engine and the installation.

Most diesel pumps must be started manually, making remote pumping installations more costly to operate, and more time consuming due to a decreased level of man power.