[RE-wrenches] Sunny Island remote alerts

2023-10-20 Thread William Miller via RE-wrenches
Friends: How can one read error and/or warning code either via Sunny Portal or port forwarding a Webbbox? I can see charts galore on the Portal but I can’t find error or warning logs. Also, I get alerts via email but they are vague, as in “3xx” or “7xx”. Apologies if this is a dumb question. W

Re: [RE-wrenches] Cleaning PV mods

2023-10-20 Thread Jay via RE-wrenches
I tell my clients to wash your panels like you’d wash your car. Similar soaps if needed to remove pollen or harder to remove things and softer bristle brushes help. Doing it during the heat of the day means a larger chance of mineral deposits vs cooler times depending on your water. Myself I don’t

Re: [RE-wrenches] Cleaning PV mods

2023-10-20 Thread August Goers via RE-wrenches
I now live in a more rural part of California and the dust buildup and bird droppings on my modules cuts energy production down by about 5% during the dry months. I imagine that professional cleaning services would still cost more than the recouped energy production, especially since the dirt build

Re: [RE-wrenches] Cleaning PV mods

2023-10-20 Thread Kent via RE-wrenches
Jason, This is the way thermal shock was explained to me. Thermal shock creates micro fractures in the glass. PV modules have tough tempered glass so one thermal shock event, or a few dozen events, is unlikely to cause a module to fracture; but eventually the glass gets to the last straw when

Re: [RE-wrenches] Cleaning PV mods

2023-10-20 Thread Jason Szumlanski via RE-wrenches
I don't understand the thermal shock nonsense. It routinely starts downpouring here when it's blazing hot out (sun showers) and the rain is way cooler than ground water in summer. It makes no sense. If hose water from the ground is going to hurt solar panels, you better not put them where it rains!

[RE-wrenches] Cleaning PV mods

2023-10-20 Thread Dana Orzel via RE-wrenches
Hey ally 'all, Ok bad solar installer! 7 years & I have never cleaned my modules & live on a dirt road. Yeah rain does a good job with the dust but there is a film mostly on the edges. What does everyone do for cleaning? My array is 16'+ tall on a hill side. I have a pressure washer & w

[RE-wrenches] Replacement inverters for legacy SunPower mods

2023-10-20 Thread Mac Lewis via RE-wrenches
Hello Wrenches, Does anyone have suggestions for replacement inverters for the older SunPower modules that require positive grounding? Can anyone quantify what the efficiency drop may look like in a transformerless inverter topology paired with these modules? Is it the negative ground we want to