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  • Help with off grid small shed project.

    I posted this in the beginners section but got no responses. I am building this out right now and want to be sure I did not skip something 1120 watts of used panels in 2S2P (72v/16amps) to a solar disconnect then to a victron blue solar 100/30 for a 24v battery system (I know that 1120/24=46...
  • Solark 15k and energy audit

    Am planning to get a solark 15k to feed one of my two 200amp panels. Most of my critical loads are in the one panel. I recently installed iotawatt to track energy usage. See picture below. In the evenings I consume a lot of energy with three AC units. I can see the peak here getting near 15k...
  • Solark 15k wiring 200amp bypass switch

    I finished installing diy a grid tie 7.6kw solaredge used system with 40amp back feed breaker and 9.8kw pv. With the help of this forum, I received PTO in April 2023. Now, I want to install a solark 15k so that I can add more pv to the system and batteries and have backup should the grid go...
  • Pollen on flat vs angled panels.

    These panels are not currently in use. I am storing for planned future use, but it is amazing to see the difference between 0 degrees and 80 degrees. My panels on the roof at 23 degrees are probably closer to zero! Can't wait for PTO and I can turn on the system and then go clean them
  • Critique my setup

    1120 watts of used panels in 2S2P (72v/16amps) to a solar disconnect then to a victron blue solar 100/30 for a 24v battery system (I know that 1120/24=46 amps, but I have used panels and expect poor sunshine on my shed as it only gets sun from 9am to 1:30pm) Mppt goes to the red and black bus...
  • tennis court lights and conduit at top of fence

    I am considering placing solar panels on the tennis court lights shown here -- kind of like what is done on the electrical utility poles. Can I run the wires in PVC conduit at the top of the chain link fence. There is already electric line obviously running to the lights, and so I don't want...
  • 2 x 200amp panels but only 200amp meter (not 400 or 320amp)?

    I spoke with a solar salesman today and sent pictures of my electric panel and meter. Basically I told them I have 2 x 200amp panels. However they noted that I only have a meter for 200amp service. I only use 15000kwh a year which fits 200amp service rather than 400amp, but they did recommend...
  • All In One Off Grid with low turn on voltage

    I am looking for an All In One that can turn on with low voltage. I have 4 panels with 36V and 8Amps, but Ian at Watts247 does not believe the LV6548 will work even though the opening voltage is rated at 90Volts as he states that it runs more optimally at 160Volt. Does anybody have any...
  • EMT conduit one foot off the ground

    Will this be acceptable by the inspector? I am in PA. We had no snow this year. I could so dig away the berm to move it lower as it is a pretty serious slope
  • Low Voltage DC Battery Relay to 120V AC Contactor

    I need the wisdom of the group. I have a 24V 100Ah battery Battleborn LiFePo4 charged by solar 1.1kW. In the summer, I want to run an electric pool vacuum cleaner 180watts. I want to create a low voltage DC disconnect. I am new to this, and I have no electrical background. I am thinking I...
  • Standard residential size 39" x 65" maximum wattage 2023

    My understanding of the PV world is that there used to be a standard size for residential of <50 pounds and approximately 39" x 65". Back in the old days, there were incremental increases in efficiency and so panel wattage went from 200 watt to 210 to 220 to 240 to 260 to 280, etc. Then panel...
  • Roof Top Rail System - distance between rails?

    What is the best distance between the roof rack rails? In this video, he says you have to measure a distance between the holes in the solar panel, and use that distance in order to space apart the rails on the roof. I am confused by this, because the way that the solar panels are clamped on to...
  • EMT grounding lock nut

    Does every EMT need to have a grounding lock nut? This AC disconnect was repurposed from a prior solar installation, and I see one grounding locknut where the AC was going to the inverter. My 8AWG is coming from 40amp from main electrical panel to the AC disconnect. Do I have to connect the...
  • Okay. Now I did it! 34 used solar panels/34 SolarEdge DC optimizers/inverter - Whoah!

    I am just a hobbyist and started on my solar journey with a small shed project with 4 x 280watt panels and 2 x 12vx100Ah batteries and Victron equipment. I started this just two months ago, and I am hooked. Well, I wasn't looking for this big a purchase, but somebody was selling these for a...
  • How to connect EMT to Soladeck through Eave of roof

    Sorry for the newbie question, but I want to route my DC PV wires through the roof eave via EMT conduit. I will not have a solar panel over the plumbing stack seen in these two pictures, and so I want to put the Soladeck near the eave of the roof, and then bring the 3/4" EMT conduit directly...
  • Shed roof mount ground solar panels?

    I just watched this video on grounding the solar panels. Will Prowse does not seem to address this in his diy videos. Is this needed for an off grid shed mount system. Also, if I don't have a combiner box, I assume I am just going to have to just take it straight down to a copper ground...
  • Solark with Pytes v5 battery - how to attach victron lynx power in

    I am planning to buy four pytes v5 batteries to add to my solark 15k during the black Friday deals. They do not have a server rack, but I am thinking of just buying a server rack and putting the batteries inside. My question has to do with how to wire the lynx power in. I am planning for...
  • Ground mount ballast 11000 pounds 5.5tons!

    I am trying to put eighteen panels in a row landscape format using the power field plastic buckets. I have a rarely used dilapidated tennis court where I want to put them along the long 120 foot fence wall. I asked power field for a ballast design, and they first recommended 16000 pounds of...
  • Rack rail identification.

    I purchased a sunrun installed solaredge system that was removed from a roof. 9.5kwatts into a 7.6 kw solaredge inverter. It came with a racking system I do not recognize. It has black four foot bottom rails and then many many small silver pieces as shown. I am more accustomed to two long...
  • Flat roof. 1/12 pitch 7 degrees

    I have about 320 Sq feet of space on a small flat roof that is southwest facing with no trees. I want to add ten solar panels maybe using unirac rm5 to this epdm rubber roof surface. It is slightly pitched. I tried to design this with unirac builder, but they are hesitant to approve something...
  • Beginner DIY Roof Top Installation

    I am new here, and I am going to start with a shed build, but as I start to plan a larger system in my mind for the house, I am scouring the forums here. I do see lots of discussion about the inverters, batteries, etc. However, I don't see a lot of people discussing the actual installation of...
  • Single phase to 100amp panel (one side only?) Does this make sense.

    i have this plan to run my 24v 1500 watt inverter to a 100 amp circuit panel. I know that I only have three wires and thus only half the panel will be active and thus only single pole circuit breakers will work, but I am hoping with more and more panels will one day allow me to provide more amps...
  • Hybrid inverter battery voltages (not just 48V)

    It seems that Sol Ark and EG4 all use 48V nominal batteries for energy storage. I was watching an interesting youtube video where someone was able to connect a Nissan leaf battery to a Fronius inverter, because the Fronius inverter allows for more range in the battery voltage. I am...
  • Do bypass diodes in solar panels eliminate need for micro inverters or DC optimizers?

    Enphase has very successful marketing. I am new to the field and am trying to weigh benefits of panel level monitoring versus whole system monitoring alone. It is certainly more cost effective to rely on the bypass diodes if my roof has a lot of dormers and potential shade and tree shade. Can...
  • Batteryless Shed operation LV6548 vs Growatt 3000-ES

    My shed can only fit 4 panels. I purchased 4 panels used LG 280 Watt 36V 8amps. I contacted Ian at Watts247, and he suggested I purchase a Growatt 3000TL LVM-ES. However, the startup voltage is 150V for that unit, and with 36Vx4=144V, I won't have enough volts to start charging (although I am...
  • Simple EV conversion for older vehicles

    I have been bitten by the solar bug. Starting with 4 panels on my shed in September 2022, I have completed installation of Grid Tie Solaredge 7.6kw inverter, and am enjoying the harvesting of free energy! I am now thinking about my next project, and I am thinking about how to convert ICE...
  • Solark inverter with Solaredge DC optimizers

    I just spoke with the Solarark sales person in Texas, and he just said that a SolarEdge DC optimizer system with Solaredge inverter could send its AC output to the "generator" AC side input of the Solark, so that the Solark serves as the controller. This would allow me to use the Solark...
  • Shed build 1500 watt inverter high frequency

    Now that winter is on its way, I wanted to build a battery box to keep some insulation. I build a three sided 2x4 box to house my heated battleborn lifepo4 batteries. I decided to run my circular saw directly from the battery and experienced some challenges starting the saw. I think it is a...
  • where to place solark 15k and batteries

    My utility room contains my natural gas boiler which is part of a whole house hydronic system -- hot water tank and hot water is piped to each of the air handlers (three of them). It is a great heating system, but it means the boiler room is very hot. In the same room is located my two main...
  • Ballasted ground mount with pavers?

    I want to build a four panel ground mount like seen here. Except... I don't want a huge piece of concrete. Instead, I am envisioning concrete for the post tie in, but I want to supplement weight with pavers. This way, it is more manageable if I want to move it. I am only planning four panels...
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