Thank you. This is what I was looking for. Along with the others that have helped with this kind of information. I really didn't want to get into a debate whether this would work or not. I ran through all of the possibilities. And it's either panels powering DC elements. Or solar hydronic panels. The later being way too expensive. If bought new. But now I have to see if I could get used hydronic panels.
Or DIY and build your own water solar panels, not too hard to do. Guys have even used cpvc in the collectors before, it would work for you as you only need it in winter. Google is your friend it you want to save cash.
I did a deep dive a while back trying to figure out a way to build thermal panels without breaking the budget. Issue was, all the cheap materials options are not able to survive a high temperature "event". In the end, the cheapest system I could design was and air over water. That is, they where cheap air heaters( the window screen style) and the air was blown over a radiator/heat exchanger to heat water. The cool thing about the design was the water was not outside so less freezing issues. Also, the option of heating living space with air being available.
He would not need them in a high temp situation, no need for this in summer, cover it up, wait till winter, lol.
Please lookup RMS (root mean square) voltage.
Vpeak * sqrt(2) / 2 = Vrms. It's trig, calculating the area under the curve to get the mean voltage for the cycle of a sine wave.
Close, it is the mean square voltage of a sine wave. Power is V^2/R, so the power tracks with the square of the voltage.
Uh huh, x^2 + y^2 = 1 is the unit circle from which trig functions are derived. AC is created by spinning a magnet 360 degrees inside a coil creating a sine wave. It's been a very, very long while, but it's still trigonometry expressed as root mean square. sin^2(a) + cos^2(a) = 1 and off you go into everyone's favorite math . . . !$#@! trig.
Kool thank you this is what I was looking for. The best way to set up the PV system. I have a good handle on the hydronic heating. Would use drain back system. PV panel to run pumps. If I can find a good deal on atleast 10 used panels. But leaning towards PV.
The project is here.
Freezer is 2 feet away and propane water heater is also a few feet away. The inverters and charge controllers are also there so any heat generated gets recycled. Using the heat pump water heater for domestic hot water with solar for power works great. I'm very impressed, with the phone app allowing remote control and having propane as backup in times of low PV yield works very well.
And?You guys and your rms, ac vs dc, power to the square talk, sound like a bunch of nerds........LOL
YUPAnd?
Basically a buck switching voltage regulator that allows the panels to be higher voltage (and thus more power) than the load. The power output could be kilowatts so this is a non trivial power supply design.
If DC switching is wanted, one could use these. https://batteryhookup.com/products/te-connectivity-ev200aaana-500a-0-900vdc I recently purchased 24 of them and plan to use these to switch PV from one system to another remotely. I can't find any type of transfer switch to do what I want so I'm building my own. These do require a power supply less than 36V.
