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Solar Air Conditioning – Direct PV DC – Project Updates and Video
Note: ongoing project updates will be posted towards the end of this page. Thinking in terms of a grid-down scenario, besides food, water and shelter, air conditioning is one of the most important modern benefits to society. There is nothing that can boost morale like a good cold AC and a place to rest after
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How Many SOLAR Watt-Hours does it take to cook? (Documented Experiment plus Video)
Kitchen-Grade 12 Volt Cooking Appliances are an untapped industry in my opinion. There is a pressing need all over the world for simple, durable and affordable 12v cooking appliances, but most of the ones available are not designed for the rigors of daily use. After years of searching for alternatives, I could not really find
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Insulated Solar Electric Cooker – simple DIY! affordable off the shelf option plus video
An insulated solar electric cooker, sometimes referred to as “ISEC” is an insulated container that takes a direct solar panel input to cook food. These appliances are generally a DIY project and not something available off the shelf. A good example is my small solar electric cooker which I used to boil an egg with
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DIY Bus Bars for lithium-ion cells – handmade in the workshop
Recently I needed some copper bus bars for a lithium-ion pack I was building. This pack will be used to power a prototype cooking appliance. But I did not want to buy any pre-made bus bars and decided to try the DIY option. There is also a video documenting this technique posted down below. First
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Off Grid AC and LiFePo4 Battery Upgrades for my Solar Workshop – ongoing updates and videos
Update 8-11-2024 – the upgraded off electrical grid system has been operating for a few weeks now with no problem. I can run my air conditioner all day, shop tools, air filters, lights and everything else. However I still use a lot of direct solar electric power, bypassing the batteries, inverter and charge controller wherever
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Pure 12V Off Grid Cooking With a 200AH LiFePo4 Battery! Article and video
A larger 12v lithium ion battery offers a renewable energy source for cooking. In fact, such a good sized battery can replace the fuel tank typically used for cooking in some scenarios. Recently I received a sample of Power Queen’s 200ah deep cycle LiFePo4 battery. I put it to the test by simultaneously operating three
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200ah LiFePo4 battery runs an AC for how long? With video test / review
Full disclosure, this battery was provided for review by RedODO. I do not accept sales commissions. I was curious how long a 5000 BTU air conditioner would run on a 200 amp-hour LiFePo4 battery. That was the main part of my recent test and review of the RedODO 200ah deep cycle battery. Test Setup For
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Solar DC Direct Drive 12v / 24v / Series car radiator fans – Bench Test with video
In this article and video I compare the performance of different car radiator fans in a direct PV DC driven (PV-to-Load) shed ventilation scenario. Overview A 50 watt solar panel and a simple car radiator fan makes an extremely simple and robust DIY shed ventilation solution. 12 volt fans are very common and affordable, but
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Pecron E600 LFP – solar generator endurance test and review
A solar generator is a great way for people who are new to solar power to get started without much effort. Just plug in the solar panels and go. Over past years I have collected, purchased and repaired over 40 solar generators and portable power stations of various kinds – definitely enough to experience their
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Building a Solar Powered Ryobi 18v Battery Supercharger x3 – Project Overview plus DIY video
If there’s one thing that has changed DIY over the past few years, it’s cordless lithium ion powered tools. I use a lot of Ryobi 18v batteries to run tools and have become addicted to their flexibility and affordability. But the charger usually is plugged into an AC outlet. Why not simply plug a solar
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Nichrome and fuses melting at 1800x magnification – video
Recently I was asked by Joyalens to review their JL246MS digital microscope. I accepted in order to look at Nichrome and fuses up close. (Note I don’t receive any commissions for sales). Interestingly this microscope is USB 5v powered, so it’s easy to run even off of a battery pack if needed. Nichrome wire forms
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12V Toaster Oven! Build your own for about $25 DIY / HOW TO Video
12 volt toaster ovens should be very cheap and readily available – the world needs them. I’ve been working on a 12v DIY volt toaster oven prototype project for over a year in the solar workshop. Wouldn’t it be great if the DIY solar power enthusiast could build a portable 12 volt toaster oven in
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Direct Solar Electric Cooking vs. traditional methods – A Grid Down Scenario
It’s happened, The Grid Is Down. Roads are closed. No gas stations are open. Nothing works. Electrical power and communications are gone. Chaos is slowly breaking out. But the Off Gridder feels fairly secure; solar panels on the roof, 20kw of batteries, a wondrous integrated inverter with bluetooth, MPPT charger all crammed into one giant
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My 12 Volt Hotplate Cooktop Prototype – Cooking without an inverter
This project has the goal of the total conversion of a portable kitchen cooktop / hot plate to pure 12 volts DC operation – NO inverter! Second is to show and demonstrate that such an appliance should exist. I believe this type of 12 volt appliance should be common and affordable. With a 12 volt
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20 Watt Solar Panel Boils an Egg! My ultra efficient solar electric cooker prototype (Video Added)
Cooking food with only 10 watts of solar power sounds unattainable – but it’s not. This was recently proved in my solar workshop. I used a combination of an insulated food container with a diode chain solid state heating element to efficiently extract heat from a solar panel. The result is an ultra efficient mini
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VIDEO: Digital Multimeters for DIY Solar Power – Tutorial guide
Beginner Friendly! I have produced a second tutorial video about learning to use a Digital Multimeter (DMM) with DIY solar power. In this Part 2 video, I will teach you how do basic measurements and checks against some solar power components. In the video I will also be reviewing my Gochifix 3-in-1 digital multimeter and
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Tiny 12V LiFePo4 Lithium Solar Powered Kitchen Setup – Emergency Preparedness Test
Cooking food from smaller solar power systems has always been one of my key interests. High tech survival and emergency preparedness too. But cooking with standard kitchen appliances often seems out of reach due to the high power draw required. And many people do not have large batteries and inverters to do the task. The
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Solar PV Solid-State heating elements (Diode Strings) explained
This post is mainly to address the lack of understanding about solar powered (PV-to-Load) solid-state heating elements – also called a diode string or chain. The Part 2 video presentation and this blog post should help fill in the blanks. The video itself is also posted here on this page. Watching Part 1 is also
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