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Making a cheap DIY HEPA Air Purifier
The air is dirty – fact. There’s a lot of stuff in the air that shouldn’t be, we won’t get into that here. Inside a typical home, it can be even dirtier. For this reason I have a lot of HEPA air purifiers in my home and shop. If you have sinus issues, asthma and…
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Ryobi 18v Solar Battery Charger DIY project
Wouldn’t it be great if Ryobi 18v power tool batteries could be charged directly from a 100 watt solar panel? A while back I developed a prototype which achieved this aim successfully. Products like this should already be on the shelf. With solar power, efficiency is a good thing. The normal route involves the solar…
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Can you mount LiFePo4 batteries on the side or inverted?
Question – Can you mount LiFePo4 batteries on the side or inverted? Article By DD @ Solar Power Edge Hi folks, this is to start a new series of posts (and videos) about Lithium Iron Phosphate batteries. It’s my favorite battery chemistry of all time, so far. I first started researching and using LiFePo4 batteries…
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Are wall mounted solar panels worth it?
I took the chance of mounting some 100w monocrystalline solar panels on the wall of my metal building (solar workshop). If interested, check out my video of the setup at the bottom of the page. I really needed some extra power for lab experiments and so forth, but did not want the burden of more…
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Are Plug-in Grid Tie Inverters safe?
Grid Tie (Tied) Inverters are an attractive way to use solar power to reduce electric bills. They work by backfeeding A/C power into the electrical service wiring or via a standard wall outlet, causing a slightly higher line voltage. In a nutshell, this causes the Grid Tie Inverter’s power to be used up first by…
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Risky Solar Experiments in my shop – part 1
I often wondered what would happen if I took a 12V solar panel with its high VoC (Voltage Open Circuit) and plugged it straight into a netbook or laptop. This is risky because solar panels have an unregulated voltage output. So I took a netbook that was available and tried plugging in a 100W solar…
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What is PV To Load? (PV2L) concepts
What is PV To Load? and (PV2L) concepts You’re probably familar with the idea of connecting Solar Panels to a Charge Controller to a Battery to an Inverter and finally, to an appliance. PV to Load (PV2L for short) is a more efficient way to run some appliances – simply put, the load or appliance…
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Making Hot Water if the Grid Goes Down – Cheap Easy DIY
Have you ever thought what you would do if the electrical utility power service was down for a week or a month, and you couldn’t easily get a hot shower? Believe it or not, there is a cheap and easy DIY solution. If you already have a few solar panels, they can heat water for…
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