you can not calculate your washing machin against your tax but you can calculate a investment against it you can do a washing machin investment.
for example this: http://www.ebay.de/itm/260717830668?...84.m1423.l2649
a Washing machine hot water ballast control to use heat water instead of electricity and this is your business because you can drive a heat and power power plant and wasting hot water is essential to make money on electricity!!!
now you get it? your washing machin point was just stupid but i do the hot water ballast control exactly last year to improve my POWER PLANT!!
now you are surprised by my creativity and cleverness??