Recent content by Drunk Engineer

Your Delta Pro can do 1600 watts solar, so you are not quite max'd out with only 3x400 watt panels. You can add more panels by connecting in parallel, so as to not exceed the 150 volt limit.

If you have an iPhone, then download the app "Sun's Path". You can point your camera at any point in the sky, and using "augmented reality" display feature will show the position of the sun on any particular time/day of the year. Select winter equinox date on the app, then walk around your...

So are you saying the Grounding Adapter does not in fact solve this issue?

Have an off-grid cabin being powered by an Ecoflow Delta Pro through an inlet. The ground-neutral bond is in the panel. During winter months, the Ecoflow is recharged with a regular generator, which is bonded. To recharge with generator, the Ecoflow has to be disconnected from the house to...

"In traditional solar cells, the maximum EQE is 100%, representing the generation and collection of one electron for each photon absorbed from sunlight. Some advanced materials and configurations developed over the past several years have demonstrated the capability of generating and collecting...

690.31(A): "Where PV source and output circuits operating at voltages greater than 30 volts are installed in readily accessible locations, circuit conductors shall be guarded or installed in Type MC cable or in raceway."

Sure, but if you know how to bend some EMT then you also know how to put together some 4x4 to make your own mount.

My understanding that latest code requires PV wires to be protected behind some type of barrier/conduit. The issue with all these ground-mount kits is that none of them provide this basic feature.

The IntegraRack seems fine if you have a perfectly flat surface to work with. My ground mount sits on sloping land with undulations, and putting IntegraRack in such a location would be more trouble than its worth. It is also much simpler to attach conduit and boxes to PT wood.

I looked up the original legislation, and the exclusion for pools is only mentioned in the context of "thermal storage systems". Hmmm....

Not saying you are wrong, but I don't see anything in the IRS docs that says this.

I wonder whether this built-in extinguisher is actually effective for a battery fire, or just a costly gimmick?

https://solarsearches.com/cgi-bin/model_price.py?model_name=REC290TP2 https://clearenergypartners.store/products/290-watt-rec-solar-panels The item is actually 290watt (title image above is incorrect for some reason)

Those JJN panels don't seem to have any UL or European safety certification, if that matters to you. It's a problem with a lot of the stuff sold on Amazon.

Using solarsearches.com finds NewPowa 180watt is 52 inches long. Amazon has them in stock.