Pushing a 12.5 ton boat with a 1kw epropulsion electric outboard

The preliminary numbers are in.
My calculations (vicprop) gave me a speed off 2.8 knots for my 12.5 ton (weighed) boat with 1KW, in less then optimal conditions the measured speed was 2.9 knots so I am really happy.
The mount was temporary and in the wrong angle when powered up (man this engine has a lot off torgue). So I think a bit over 3 knots will be the endspeed.
While motoring I am charging the Sprit with 500 watt which still gives me 2.3 knots charged by solar (battery/inverter/charger), slow but better then dieselnoise, and in paradise we are not in a hurry,
We did 11 miles and the battery was half full when we arived. The last part was even upwind with six knots wind. (boatspeed only 2 knots 1kw)
Motorsailing is even more fun, 4 knots wind 270 degree windangle becomes upwind with a little assistance. Will give the numbers after more testing.
I am so impressed with this 1 kw spirit that I think my next project will be to get a 3kw EV0 and design a swivel mount for it so I can also use it when sailing for regen and powering. No hurry because the first reason I tried this is because I had no use for the excess solarpower we had and I am already very happy with these numbers.
First steps into making our boat into a mild hybrid so we even use less diesel in the future.
(Music by Tunetank:Time flies by)