Category Archives: solar

Cool CNC engraver using Solar

Posted on March 1, 2023 by robertwilkie

Nice build, the author has 2 issues, 1 it takes a long time to engrave, 2 once done you need to close off the lense so you don’t keep burning. Since lasers are some of the most expensive bit for … Continue reading →

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Some power saving projects

Posted on December 12, 2022 by robertwilkie

A couple times of the year I look at power projects to generate my own electricity. Hasn’t happened yet, I do like this one with arduino to control charge and windpower ( https://www.hackster.io/news/the-best-diy-renewable-energy-projects-on-hackster-e70d36bc05af

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Cool solar tracker

Posted on December 20, 2018 by robertwilkie

Supposedly with only $10 in parts, thought those cells maybe a bit more than that (unless he got them in bulk).  Basically you use the small cells to determine if they are in sun, if not, then its OK in … Continue reading →

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Interesting solar heater

Posted on November 12, 2018 by robertwilkie

The author took the cooling grids off old fridges and combined a bunch together to heat up water.  That “heated” water then has a coil inside a water tank to transfer the heat too.  Which is a good idea since … Continue reading →

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Simple water de-salinator

Posted on March 7, 2018 by robertwilkie

No idea if I spelt that one right.  Anyways its a simple method to show how you can use sunlight to get salt out of water (to drink it). http://www.instructables.com/id/Homemade-Water-Desalinator/

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Interesting solar water heater

Posted on November 13, 2017 by robertwilkie

Interesting build,  It cycles cold thru the bottom, which gets heated up and then “steam” out side. https://www.instructables.com/id/How-to-Make-Solar-Water-Heater/

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Solar water distilling

Posted on November 7, 2017 by robertwilkie

This has to be the simpliest one yet.  Only issue I see is getting the water out when its “clean” without accidently mixing the two. http://www.instructables.com/id/DIY-Solar-Water-Distiller-Simple-Solar-Water-Disti/

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Simple Solar water heater

Posted on October 26, 2017 by robertwilkie

Nice build overall.  Not so sure I would use plywood for the backing in the elements.  Could be a good away to heat small pools.  I like the use of flashing for the backing. http://www.instructables.com/id/DIY-Solar-Water-Heater-Deluxe-Aluminum-Backed-COPP/

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Another solar heater way to generate electricity

Posted on August 4, 2017 by robertwilkie

Have a magnify glass focus on one side of a peltier, the have that in water to cool the other side to generate electricity.  Interesting idea overall. https://www.instructables.com/id/Generate-Electricity-From-Nothing/

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This is one big Solar Pop Can heater.

Posted on May 25, 2017 by robertwilkie

OK like wow that’s allot of soda cans.  It sounds like the build does a good job heating things up with the sun.   Not so sure I could get something this big by my family for a build. https://www.freeonplate.com/how-to-build-diy-solar-panels-out-of-pop-cans/

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