Case Study: Typical Energy Savings For A Primary School

Due to budget constraints and environmental responsibilities, schools are always on the look out to make cost savings and energy reductions. Please read the following case study of how this can be achieved.

Case Study: Energy Savings and Carbon Reductions Available to Schools by Switching to Energy Efficient Hand Dryers

In Brief:

School annual savings - £345 - £639 (savings that can be put to good use in other projects around the school.)

School annual carbon reduction - 1555 - 2876 Kg/C02 (Decreasing the carbon footprint of the school)

In Detail:

  • The school are requiring 11 hand dryers
  • They want to become more energy efficient, as well as removing paper towels from use.

The below information is based purely on hand dryer use.

School Demographics
Pupils412
Staff59

Consistent values were used to calculate and compare energy costs and savings

Standards Used
Pupil days at school per year190
Pupil toilet visits per day3
Pupil toilet visits per annum234840
Staff days at school per year200
Staff toilet visits per day4.5
Staff toilet visits per annum53100

Existing Hand Dryers Already in Place:

World Dryer Junior Economy SM48 Hand Dryer

This hand dryer has the following specification:

Rated Power (kW)1.8
Dry Time (seconds)35 – 45
Average Watt hours per dry (Wh)20
Annual kW/h5758.8
Annual Carbon production* (Kg/C02)3110
Annual running cost+ (exc VAT)£691

*Based on Carbon Trust standard of 1kW/h = 0.54 Kg/C02
+Based on 12p per kW/h

Recommended Hand Dryers and Energy / Cost Comparisons:

The table below shows the recommended hand dryers we put forward to the school.  

Some of the recommendations are based on the quiet noise level produced by the hand dryer as it has been found that young children may have a fear of using loud hand dryers.  

Some of the hand dryers recommended are also adjustable, hence the variation in figures.  The adjustable features include heater element disengagement and motor speed reduction.

World Dryer Junior Economy SM48 Hand DryerTurboforce Junior Hand DryerEcoForce Hand Dryer

Puff the Magic Dryer / 
Dryflow Elite

Dryflow Elite MK2
Rated Power (kW)1.80.5 - 1.150.5 - 1.251.71
Dry Time (seconds)35 – 45 13 - 16212022
Average Watt hours per dry (Wh)202.5 - 43 - 7106.5
Annual kW/h5758.8719.9 - 1151.8863.8 - 2015.62879.41871.61
Annual Carbon production* (Kg/C02)3110 

389 - 622

466 - 108815561010
Annual running cost+ (exc VAT)£691£86 - £138£103 - £241£345£225
Carbon saving compared to existing Hand dryer (Kg/C02)-2721 - 2488 2643 - 202115552099

Annual running cost saving compared to existing hand dryer  (exc VAT) 

-£605 - £553£587 - £449£345£466

*Based on Carbon Trust standard of 1kW/h = 0.54 Kg/C02
+Based on 12p per kW/h

As a Carbon Trust accredited supplier of hand dryers, we really are passionate about helping schools improve their energy efficiency.  See here for how a school get funding for equipment.

Please note we provide substantial discounts for the public sector on all our hand dryers for schools range. Please see the bottom of this blog post about making an enquiry.

This case study is based on an analysis of an actual Primary School. If you would like to request the name and address of the school please ask by contacting us via the contact us page here or call us on 0114 3540047 and we shall seek permission from the school in the first instance.

Find out how much your school could save!

  • This calculator uses the very energy efficient and high speed Turboforce Junior PLUS hand dryer to show comparisons.
  • The calculations shown are with the hand dryer at its highest rated power to give minimum savings. An intelligent heating system makes sure the savings will increase further.

Use this calculator to see how much money and carbon you could save switching from either conventional hand dryers, paper towels or roller towels to energy efficient hand dryers.

You will get:

- Annual Saving vs. Current Solution
- CO2 Saving Vs. Current Solution
- Yearly Running Cost
- Payback Period (ROI)
- Annual number of trees saved if using paper towels


For more information or for help in finding your ideal hand dryer or washroom product, please call us UK offices: North: 0114 3540047 South: 0203 3270448; Eire office: +353 19036387, use our contact us page by clicking here or click to visit the website.  You can also use our Intelligent Search Tool that helps you identify the perfect dryer for your location by clicking here.

In the trade? Don't forget we can set you up with a trade account for your purchases.

We have wholesaler, contractor, public sector and charity discounts available, please don't hesitate to ask or find out more information by clicking here.



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