ESPcat Solar Microwave

I have managed to take heat from the sun and turn it back into heat!  Not everyone can do that.  It turns out that there is indeed spare power left over from the twin 100 watt solar panels that operate the under bench refrigerator.  I decided to put that spare solar energy to work running a microwave.  To prove that everything was working, I heated 4 cups of hot water and even made one of them into coffee of the instant kind.  It turns out that solar microwave coffee tastes far better than instant coffee brewed over gas heat.

I think that the gas seeps through the metal of the hot water jug and contaminates the water.  That sounds perfectly reasonable doesn’t it.  I am guessing that the 1000 watt-hour lithium battery can make around 10 cups of coffee.  I haven’t tried it yet but it does make 4 cups. I am trying to think of something to cook.  Maybe hotdogs and white bread.  Real man food!  Perhaps I will try cooking a fish if I can catch one.  Gallagher says it’s a bad idea.  What does she know?   Wait, she’s changed her mind!

My 2000 watt inverter doesn’t seem to like putting out 1,200 watts for the 3 minutes required to heat a cup of water.  I have to run the microwave on 3/4 power to keep the inverter from tripping out.   I don’t know yet what 3/4 microwave power amounts to in watts but I plan to find out.  I will probably have to invest in a more powerful inverter.  It’s a bit of a shame that I can’t trust those Chinese suppliers. ERROR! SEE BOTTOM OF PAGE.

The dinghy needs a clean!  It has green stuff growing in it.DSC_0038

ERROR CORRECTION – It seems I owe my Chinese suppliers an apology.  Actually they are unlikely to be reading this blog but never mind.  I still got it wrong.  The inverter was not tripping out on over temperature.  It was tripping out on under voltage.  Even though the voltage display on the solar charge controller indicated 22 volts which is well above the low voltage trip point, I suspect that if one were to look at that voltage on an oscilloscope, the waveform would have some dips in it that fall below the low voltage trip point.  I will go into more detail on this subject in a later blog post.


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