cybermatrix

Yes, i think you are right in that to retrieve the of energy efficiency are the most costly and it is way simpler to scale up instead. I was aiming at a rest energy on which an innovation if implemented large scale could mean more efficiency for the countries with cloudier and colder climates. https://spectrum.ieee.org/solar-cells-could-capture-infrared-rays-for-more-power

Likewise. But i must say that i am a dutchman living in LT. Itsepresau 😅

I am also a numbers person @drk. Do you know any small, low cost, wireless thermometer to keep track during the year?

I would like to know how cold/warm my shed / isolated places is. Also to understand if batteries can survive etc. A bit of DIY is not a problem and a server is setup easily here.

The video was nicely made. So much effort and material to gain views only... But nicely made with the shaking when starting the generator and then a sound taking over. the constant rpm with an angle grind turning on was unfortunately not well implemented. Maybe just enough flaws implemented to keep it at the satire level.

I was looking for natural fertilizer for Malawi and came across a Kenyan study if im not mistaken that had villagers peed into a storage tank just to explore the usability of urea as local fertilizer. There were some interesting findings but the thing was that urine was too strong to use directly as fertilizer. directly on plants would overfeed and burn the plants. They mixed it with 1:10 with water to get to a right mixture

Thanks, nice to know trick of the trade. Now to look for copper sulfate where to get

That would be a way to use in combination with the suggestion of @CadeJohnsons inverter with that load dumping

That is a nice small setup. The air pump is a small brushed pump? Why are you still using a buckbooster if the voltage is already 5v from panel and the airpump need 5v? Will the solar panel deliver in morning and evening not the 5v but 3v?. I am suprised that a 5v airpump exist and that it is able to pump air into water (as that cost quite some pressure to overcome)

The solar pumps that we use have brushless solar pump which require a controller because they are not brushed. Then they also can be driven by an PWM to enable optimal power every hour of the day. You are right, we can be using simple dc brushed motors. The reason why i would like AC is that there are many application on offer

Do you by any chance mean this type of valve? https://en.wikipedia.org/wiki/Wax_thermostatic_element I must agree, it is quite ingeniously thought of

Nicely made! You have a small lithium or lead battery in there? Also can you read the voltage of the battery the whole year? I am interested in the survivability on the winterdays. I am living in Lithuania where the winter sun hours are very short and sometimes with days of overcast. But i would like to build solar powered tech that can survive in winter. Also interested in using capacitors instead of chemistrial (if thats a word) batteries.

Thanks for the tip! It was very intering.