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Looking for a licensed contractor to help with a residential project in Sarasota, FL. The local AHJ won't allow a homeowner to install on their own, so I am stuck and need help. System is 11.7 KW using 30 CanadianSolar CS6R-390MS-HL, 3 string of 10 each. Tigo TS4-A-F RSD boxes. Amnesolar...

Given a residential roof array in Florida with Tigo TS4-A-S rapid shutdown devices, does that satisfy NEC 690.13? That is, I don't need an isolator on the exterior wall of the building for fire fighter operation, just an RSD button which shuts down the inverter and the panels. That being said...

I'm shopping for panels (450W class, know any deals?) and was putting a lot of weight on the power performance warranty percentage and duration. Some are as bad as 20 years and 80%, some are as good as 30 years and above 90%. But then I wondered, how would you know? Or more to the point...

For my parents house, there is a main and a backup panel. I'd like to have a double throw manual transfer switch to change the backup panel from being powered by the inverter load connection to the grid directly in case of inverter failure or service. Max load would be 80 amps, 2 pole (split...

Anybody using the Sungold SG10KHB-48 hybrid inverter? https://sungoldpower.com/collections/hybrid-solar-inverter/products/10kw-hybrid-inverter-48v-split-phase 15 KW PV, 4 MPPT, 10 KW AC, 48 volt battery input. Looks decent on specs and at $2400, might be worth considering since that is less...

Yotta Energy for putting battery storage under the panels on the roof. There is no worse place you could possible put the battery than the extreme temperatures and exposure of the roof. The heat will chemically aged the cells quickly, the cold will reduce their capacity, and the thermal...

Dumb question time: What is the difference between a hybrid inverter and an all in one inverter? I thought they were one and the same, that is, inverters that can use solar and batteries to run with the grid off, and can run grid tied when it is present. I noticed this forum changed names...

In preparation for monitoring my parent's house, I bought an Emporia energy monitor kit with two main CTs and 16 branch CTs. It appears to be a nice little kit and seems to work electrically. What I thought I bought was the ability to get second by second usage data over a long period of time...

My company building is 35,000 SF single story located in Newburgh, IN as shown here: After looking into residential solar for my parents in Florida, I've started to think what I can do to my building, so I am perhaps going slightly mad thinking about solar. The building is 3 phase 208 VAC...

For a grid tied EG4/Luxpower 18KPV, what happens if it has no battery attached? There was some comment that the unit would not work properly in these circumstances, that is required a battery to be stable or operational. If so, this seems like a weakness since loss of the battery (for service...

For a system with one EG4 18KPV inverter, grid tied, 11 KW solar array, batteries primarily for backup, which would you pick for batteries: A. Two EG4 PowerPro 14.3 KWH batteries, total 28.6 KWH for $7600. B. Six Ruixu 5.12 KWH batteries with rack, total 30.7 KWH for $8300 (on sale for 10% off...

Hello, doing a paper exercise to figure out what the compatibility is between EG4 18KPV and Tigo MLPE modules. See if I got this right: A. Rapid shutdown only 18KPV (of recent production) has the SunSpec RSS signal built in that will trigger with RSD button (either side of unit or external)...

I’m new to designing solar power systems, so I am hopeful to draw on the combined experience and wisdom of the group to review my proposed system design. My parents live in Sarasota, FL about 4 miles inland and are looking into installing grid attached solar and battery on their house. Most of...