Click and drag in the columns to set the values for your own workplace.  Then click on “Calculate!”


Net savings

The result of your savings calculation is a net amount, i.e. the amount you save after your outlay for a Wattguard has been factored in.


Savings example


If using 100 kW lighting

… this is how much you’ll save:

You achieve a net saving of at least SEK 125,000 per year*, just on your electricity bill. In addition to that, your lighting tubes will last longer, which means a reduction in the costs associated with replacement and maintenance.

* Basis of calculation:

100 kW lighting x 18 hours/day x 340 days per year x an electricity price of SEK 0.80 x savings of about 40%.  This amount minus the cost of the “green box” yields a net saving of about SEK 120,000 per year, over ten years.  Based on the same calculation, Wattguard saves 250,000 kW x 0.1 kg of CO2, or SEK 25,000. According to the Swedish Energy Agency, about 0.1 kg of CO2 is emitted per produced kW.


… you will save this much electricity:
You benefit the environment by reducing CO2 emissions by about 25 tonnes per year.*

*Basis of calculation:
Based on the same calculation, the “green box” saves 250,000 kW x 0.1 kg of CO2 = 25,000 kg. According to the Swedish Energy Agency, about 0.1 kg of CO2 is emitted per produced kW.