Just curious local guy to me has one and he told me his bane is more powerful than the prowler today:
He reckons it cost customer 20p for the two hours he was than in electricity which I thought was a bit of a porky
just check a average price is 10p per kWh
One unit is 1 kilowatt (1000watts) of electricity used for one hour (kWh).
so work on his statement 20p for 2 hours means his machine has a power rating of 1000W ( thats less than a spotting machine) and 3 times less than my kettle
"madam use me my machine is less powerfull than your kettle!" theres a good market line

I'v include the power graph for your machine which at optimum revs and 11hp ( less than enggine maximum which is 13) , produces 8.25kW thats 8250watts, i think he might be interested to know that !
out of interest domestic socket are rated ofr use with a 13 plug so now of the science bit
13a X 240 volts gives you a maximim of 3120watts available ( spining motor creat a current draw so thats a theroritical maximum) so you still have more than twice the power of any electric machine (that does'nt need it own generator, which would be pointless more thing to go wrong)