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Most reacted threads

  • a la carte system with ability to offer all of the benefits of an AIO?

    This question is mostly targeted at the Victron lineup since, from what I can tell, Victron doesn't offer an "everything in one box" solution but also seems to be regarded as the best equipment for support and reliability. A typical "one box" solution seems to have the following: 1. one or...
  • Ground mount with roof racking system able to pass permitting/inspection?

    The gist I get is that mounting panels (generally) requires the hardware to have an engineering stamp. There seems to be lots of companies that sell roof mount installation products that come with these stamps or UL listings (or both), for example Iron Ridge, Snap N Rack, ecofasten. However...
  • Texas Oncor service area superthread

    *** NOTE that this thread is a work in progress. I am not an electrician and this information is provided by a layperson to the best of my understanding at the time of writing. Electricity is dangerous, and any information presented here is for learning purposes only and not meant to replace the...
  • Microinverter power distribution basic overview

    I can't seem to find the direct answer to this question but after watching lots of videos, the basic overview I get for power distribution looks like: PV panel --> Microinverter --> double pole circuit breaker in main load center to back-feed the panel. I recognize that Enphase and others...
  • Microinverter line diagram help

    I am working with a CAD guy on Fiver to help with my project submission packet and I have a question about a typical microinverter install. I am wanting to install Hoymiles HM-1500NT micro inverters (https://www.hoymiles.com/product/microinverter/hm-1200nt-1500nt/). My understanding from the...
  • Small Starter system planning, trying to do things right the first time

    I've been lurking for a while, but I finally signed up and bought some gear. I'd love some input regarding practical considerations for a small starter system. - My 1st question for the black Friday season is what wire setup would be best. The attached mockup shows my initial plan for panel...
  • Usable scaleability question

    I've been solar lurking for a while. I'm finally getting around to starting to assemble roughly 12kWh of 18650s that I salvaged from Ring doorbell batteries. I've watched lots of videos and read in the forums about "how to size a system," but I only seem to have run across the following setups...
  • Inverter terminology and usage case

    I was recently watching a video from Beene Energy to try and get a sense of the different inverter types (), and I had a very basic question about something that I think I've never realized. With the caveat that I realize, there are safety issues that need to be addressed for real-world...
  • Benefits of smart battery communicating with inverter Vs Voltage only

    I have noticed that the premium "smart" batteries (ex. EG4) have ethernet ports to communicate with the inverters and that various battery makers advertise that their batteries work with many different inverters. Hence, my questions are: 1. What information is communicated between the smart...
  • Is upgrading a "dumb" server rack battery mainly a BMS upgrade?

    As the title states, I'm curious if the communication function of many of the server rack batteries from the big brands is simply a function of a more complex BMS or if there is something more to it. I've been thinking about this because it seems that there are lots of deals on reasonably good...
  • Utility priority output Vs SUB Vs Grid Shaving Vs Blending Vs AC coupling

    I am still trying to understand these terms and their meaning in real-world applications. 1. Utility priority output - Saw this in an ad for a SunGoldPower SPH6548P ("6.5KW 48V Split phase solar inverter). The description says: " Utility at first priority, utility and solar provide power to...
  • solar connector options

    To connect my PV cable, I started with an Eco Worthy kit that came with connectors + spanners + crimper. Then I realized that Eco-Worthy doesn't seem to sell additional connectors, so I got the BougeRV kit. Then the YouTube algorithm plunks down a video about using genuine Staubli MC4...
  • conduit planning

    Originally, I planned to penetrate the roof with an EZ solar JB-1.2 or similar junction box and run Romex across the attic and down the wall to the main load center. After the AHJ required me to get electrical/structural PE stamps, I modified the plans to include a visible lockable labeled...

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