Solar Thoughts blog

Food for thought

A personal blog about DIY Projects, Technology & Solar Power

Category: Solar Power

  • Project: Portable DC Toaster Oven – direct solar electric cooking to go

    Project: Portable DC Toaster Oven – direct solar electric cooking to go

    Hi folks, hope you’re doing well. In what is possibly a first, I am unveiling a new prototype invention – a mini PV solar electric toaster oven. It is lightweight, portable and I think would be fairly cheap to produce. It easily bakes or roasts bread, meat, vegetables and whatever else – all day using…

  • 18V tool battery bakes bread! Mini Oven prototype part 2

    18V tool battery bakes bread! Mini Oven prototype part 2

    Is it possible to bake bread using an 18V Power Tool Battery? Recently, I set out to answer this question. In the back yard I set up a table and connected my mini solar electric PV2L oven to a Ryobi 18V power tool battery with alligator clips. After a few adjustments and a short wait,…

  • Mini 100 Watt solar electric oven prototype – Simple Solar Cooking!

    Mini 100 Watt solar electric oven prototype – Simple Solar Cooking!

    Can a single 100 Watt 12V solar panel supply enough power to cook or bake food by itself? I’ve been thinking about this question for years. A simple portable electric oven that operates off of such a small amount of power could change everything. Finally, after a long wait, the opportunity came to test the…

  • Cooling Your Shed With Solar Power! Ventilation and Concepts

    Cooling Your Shed With Solar Power! Ventilation and Concepts

    (Note: there is a more detailed YouTube video for this article posted down below) Is your shed (or chicken coop, outbuildings, etc.) getting a bit too hot in the summer time? Ventilating and cooling your shed with solar power is a fun project within reach of just about any DIY enthusiast. Believe it or not,…

  • Risky Experiments in my Solar Workshop – Part 2: lithium cell phone batteries

    Risky Experiments in my Solar Workshop – Part 2: lithium cell phone batteries

    Some time ago, a friend sent me a box of discarded lithium-ion cell phone batteries he had no use for. They would have ended up in the landfill otherwise. So I started a “side project” in which I intended to experimentally use these batteries for solar power. Normally I use LiFePo4 cells for solar power,…

  • Using Solar Panels and Ohms Law to drive DC loads directly

    Using Solar Panels and Ohms Law to drive DC loads directly

    Hi folks, I’m going to briefly cover some concepts that are helpful to understand when driving loads directly with PV DC solar panels: whether it is a fan, a heating element, an electric pump, hot water heater, and so on. We will use a heating element for this example because it’s simple and has no…

  • Learn About Solar / DC Circuit Breakers in 5 Minutes!

    Learn About Solar / DC Circuit Breakers in 5 Minutes!

    I work with DC circuit breakers quite a lot, and had the urge to make a quick video primer about choosing DC circuit breakers and the various ins and outs of the process. This presentation tries to be beginner friendly while encouraging further investigation and independent research – which is the core part of DIY.…

  • Simple PV Solar heating for beginners – plus video guide

    Simple PV Solar heating for beginners – plus video guide

    For years I have been using excess solar power to heat my home with various types of directly PV powered DC heaters. I wanted to help beginners who want to try tapping direct PV Solar power to heat their home or shop. So I created a detailed video guide (it’s posted below). Background Previously, I…

  • Buying Used or New Solar Panels? A few thoughts…

    Buying Used or New Solar Panels? A few thoughts…

    It’s very common for people to shop used solar panels. I personally have had the experience of buying both used and new, and learned a lot. If you’re interested, I produced a video a while back that includes commentary on this subject (posted to the right). On with the article! Used Solar Panels The most…

  • (Updated) Solar Panels can heat your Home or Shop – DIY video series

    (Updated) Solar Panels can heat your Home or Shop – DIY video series

    Did you know that a small (~1kW) array of solar panels can generate enough heat for a typical room in a home or shop? In fact the idea is so simple, so good and so affordable, it ought to be in every home. Note: due to the complexity and safety issues of modifying AC space…

  • Why Survivalists should own at least one solar panel

    Why Survivalists should own at least one solar panel

    Perhaps you’re not really into solar, but are a survivalist or into preparedness, prepping etc. I would argue that everyone should own at least one (or two +) 100 Watt 12 Volt solar panels as part of their survival and preparedness kit. They are truly a high tech Swiss army knife. Plus a 100 Watt…

  • Low Voltage Solar Panels can cook food directly – And why it matters

    Low Voltage Solar Panels can cook food directly – And why it matters

    Did you know it’s possible to cook food directly off low voltage solar panels? No inverter, no high voltages, no battery, no charge controller. It’s technically feasible, and I have done it several times now with prototypes developed in my solar workshop. The simplicity and efficiency of such a setup is nothing short of astounding.…

  • The problem with today’s electric cars (EVs) and it’s not charging

    The problem with today’s electric cars (EVs) and it’s not charging

    In the author’s opinion, the EV market has taken a wrong turn, probably on purpose. By the way, EVs are not going to save the world, this is a silly illusion and part of a fanatical belief system. I love electric cars For the record, I loved the idea of electric cars before “T-Motors” (not…

  • Ryobi 18v Solar Battery Charger DIY project

    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…

  • Are wall mounted solar panels worth it?

    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…

  • Are Plug-in Grid Tie Inverters safe?

    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…

  • Risky Solar Experiments in my shop – part 1

    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…

  • What is PV To Load? (PV2L) concepts

    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…