Wind or Solar
Many people ask us which is better - wind or solar? Both systems have advantages and disadvantages, and it is really just a matter of selecting the right tool for the right job. You will also need to consider the long term results of your purchase - what will it cost in 5 years, 10 years and 20 years down the track? The features and benefits of wind and solar are listed below. You will need to closely analyse the benefits each system offers to identify the best system.
The answer may surprise you!
|
Windmill |
| Features |
Benefits |
| Proven design |
Reliability
Long lasting |
| Mechanical Technology |
Low technology
Low maintenance costs
No skilled labour required
Most parts can be purchased locally
No requirement to stock expensive back up parts |
Can be used with low flowing bores
(the Windmill can "Lick & Spit") |
Low producing bores can be utilised
Pump can run dry without damage |
| Non-Corrosive Column & Rod |
Minimal service cost
long lasting |
| Uses natural energy from the wind |
No fuel cost
No need to cart fuel
Can pump at night (the wind day is around 10 hours per day) |
| Secure and visible |
Unlikely to be stolen |
| Appropriate volume |
Water is not pumped to waste
Requires only a low cost bore |
|
Solar |
| Features |
Benefits |
| Ground based |
All work at ground level
Easy to install |
| Latest Technology |
Sophisticated, Modern
High technology |
| Uses natural energy from the sun |
No fuel costs
Water is available when most needed (Summer) |
| Simple control systems |
Pump can be turned on/off automatically |
| Wide range of volumes and heads |
There is a right pump for the job
High heads are possible
High volumes achievable |
| Electronic technology |
No servicing
Clean |
| Positive displacement pumps |
High efficiency
Reduced cost of Solar (PV) Modules |
| Plug in components |
Pumps are easy to replace |
There are many pumping systems, and not every one is right, and not every one is wrong. One key fact in water pumping is that the majority of pumps installed are working away from their duty point - that is, the pump used is the wrong pump for the job. The design of the best system involves an analysis of all the factors concerning the site, and then a decision can be made as to the most appropriate system to match those factors.