P | +618 (08) 8234 2090
F | +618 (08) 8443 4184
E | sales@assetteng.com.au

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Sales_TCO

Selections from hundreds of manufacturers.

Sales, selections and recommendations from across hundreds of brands, and literally thousands of models means a reduced Total Cost of Ownership. With energy accounting for up to 85% of a pumps running costs, efficiency is key to savings and short payback times. We can do TCO analysis to help support your Capex, usually with very short 1-2 year payback times.

This time is generally shortest if you can answer yes to one or more of the following ;

 

  • A large pump population
  • A single pump that serves multiple duties.
  • Older pumps.
  • Drip Proof motor pumps.
  • Pumps with re wound motors.

The fact is, energy usage is the single most expensive part of a pump, check out the following example ;

Flowrate 50 lps / Head 65m / Water @ ambient temp SG 1.0 kg/L

Average hydraulic efficiency of the pump 54% / motor nameplate efficiency 42%

kW = Flow (lps) x Head (m) x SG (kg/L) / 1.02 x Overall Efficincy

= 50 lps x 65m x 1.0 / 1.02 x [(0.54×0.42) x 100]

= 3250/22.68

= 143 kW

Lets say the pump only operates 5 hours per day for about 1/2 a year ( 180 days )

143kW x 5 x 180

=128,700 kW Hrs / year x say $ 0.20¢ / kW/Hr = $ 25,740.00 to run this pump per year.

Now .. Lets bump up the pump efficiency by selecting something a little more modern ..

50 lps x 65m x 1.0 / 1.02 x [(0.85 x 0.89) x 100 ]

= 3250/77.16

= 42 kW

= ( 42kW x 5hrs x 180days ) = 37800 kW Hrs / Year x $ 0.20 / kW/Hr = $ 7,560.00 to run this pump per year ..

$ 25,740 – $ 7,560 = Total Saving of $ 18,180.00 PER YEAR !!

These aren’t fanciful figures, the efficiencies above are not uncommon with worn, older style pump units, even if they have been dead reliable and bullet proof, ( sometimes we think if we haven’t had to touch it, it has saved us money! ) and many of the leading brands of pumps have the higher efficiencies available. At the very least the above example gives an idea of just how important keeping your pumps maintained and as close to peak efficiency as possible is.

We would be happy to look at any of your installed pumps, run some numbers and see if it is a worthwhile exercise upgrading now, to save over and over for many years to come.

 

 

Further information :

http://energyefficiencyassist.com.au/

http://energy.grundfos.com/en/home

 

 

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