diy solar

diy solar

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  • Post in thread: Where is @Will Prowse?

    I love breakdown videos where you take a popular product and rip it apart as well as bench test. That honestly was the main reason I went with a Chins lifepo bank. I also purchased a separate Weize lifepo battery per your breakdown, and so far, it has been awesome.
  • Post in thread: 2024 YouTube Video Ideas

    I would like to see videos on DIY solutions for those of us in the upper-midwest. I know you're not in the area, but many of the DIY projects you do are completely unrealistic for me in Michigan.
  • Post in thread: Has anyone else realized how far we are away from running civilization fully on wind and solar?

    that would require massive infrastructure investment to get the power down those rails. not to mention, just about every rail system in the US has been neglected. agree it's a viable option, but again... no political will to invest in it. in MI we just had the Palisades nuclear plant...
  • Post in thread: Real-life winter production in SW Michigan -- lesson learned; have a backup battery charging source!

    14.7kw generated in the past 13 days. ?‍♂️ 5.2kw of that was generated on 12/28.
  • Post in thread: residential DIY grid-assist install -- 2kw roof array + Growatt 3k 24v + 24v chins batt bank

    quick update.... after 8 months being commissioned, I have not experienced a single fault, error or outage. I am extremely impressed with my Growatt AiO. it just keeps on working. we experienced a very mild winter, and effectively, my winter production was zero. I had the Growatt on grid...
  • Post in thread: Guesstimating production

    yep, more accurately... step 1: https://www.suncalc.org/ get your azimuth step 2: plug in arrays, azimuth and angles here https://pvwatts.nrel.gov/
  • Post in thread: Mini Split AC spec question

    mini-splits and heat pumps are extremely inefficient for heating with ambient temperatures below 40deg. we have 6 installed in our home, SEER 22 rated Bryant units, and we do not use them for heating at ALL. IMO, they are worthless for heating. We are in Michigan. that being said, you should...
  • Post in thread: My 44kW vertical and bifacial set in Finland.

    it appears those are lag "screws" in the wood I would highly recommend you replace them with bolts, backing plate and lock nuts all the way through the pole. even slight amounts of wind will work those screws loose pretty quickly. looks like a nice setup! you could always add a guy wire to...
  • Post in thread: solar pergola on pavement, only weighted down

    If you don't need to be able to pull all the way through, just put them on the 'back' side only, above the hood of the car. plenty of space there.
  • Post in thread: Freak Load Spike - Growatt 5000es

    with my Growatt, it wasn't until I installed solar-assistant that I could see the actual startup loads from fridge compressors. that's absolutely what you're seeing.
  • Post in thread: My first time DIY apartment setup

    I admire your desire to control your own power. honestly, it's a decent, basic setup. but unfortunately, as others have said... this is extremely dangerous. those panels HAVE to be properly secured with at least a reasonable attempt at meeting code. one strong storm later... one of those...
  • Post in thread: How EXACTLY does the EG4 3000 tie into the breaker panel?

    a generator manual transfer switch is what you need. you feed the transfer switch generator input from the EG4 then feed the critical loads from there. a transfer switch will allow you to change the input from generator(PV) or the grid. you need this type of interconnect to prevent any...
  • Post in thread: Emergency Battery System V1

    Great experiment! Solar is fun! I would only suggest that for systems intended to be backups/emergency-only, you don't permanently mount panels anywhere, especially on the roof. Why? because with small panels like this, you can easily move and tilt them perfectly for the time of year to...
  • Post in thread: Need professional advice on main service panel wiring.

    OP, your main panel is wired correctly. grounds and neutrals must be bonded in the USA. so no, don't change anything. subpanel should be the same. grounds to ground bus and neutral to neutral bus.
  • Post in thread: Batteries & solar equipment installed INDOORS?

    if components are UL listed they absolutely can be in a main living area. you'll need to check with your local jurisdiction regarding installation requirements. when properly installed with quality components, the risk of fire is very low. there are many videos online, including some from...
  • Post in thread: AIOs with Configurable Input Priority - Do They Power the Load and Charge the Batteries at the Same Time?

    must be. I'm literally watching my Growatt aio charge my batteries at 1200w + power my 350w loads. PV input is 1550w.
  • Post in thread: I'm beginning my wiring diagram

    I just drew it out. draw.io is great.
  • Post in thread: Running PV wires in an attic/indoors/basement guidelines?

    nice ideas... but none of that will meet USA NEC 690 residential requirements because we've started with unlisted equipment.
  • Post in thread: Panels slightly larger than shed roof

    the overhang on a shed will be fine. your main concern should be wind. secure the shed with deep anchors.
  • Post in thread: Can wiring from microinverters to main service run THROUGH the house

    yes. it's AC power like any other. it can be routed anywhere so long as you account for temperature derating in attic. your electrician should be perfectly familiar with all things NEC and running AC power. the solar microinverter as the source is irrelevant from a wiring perspective...
  • Post in thread: New System Design - 40kw / 80kwh / 20kw

    deal-breaker for me at this price point is no UL listed components for NEC residential install. i know SOK batteries are, so you would need to come up with something other than victron. sorry; but at that pricepoint i'm paying someone to install it/support and doing it legally. i specd out a...
  • Post in thread: SMA - SunSpec Rapid Shutdown. Worth it if your state doesn't require it?

    had to go look it up, but sadly RSD, GFP and AFCI all apply to "buildings" whether occupied or not. GFP is easy to address with a DC-GFP breaker for $70. so, just do it. module level RSD (in theory) makes things safe for first-responders on your roof. honestly, as long as they have...
  • Post in thread: after 2 years of dependable use my lead acids have died. can i do better ?

    6v GC2 are far more durable than automotive 12v. if you can handle the space and weight, they're solid. you'll need them in series pairs. i have two in place of a single 12v in our motor home, and have been happy so far. but, we never really use battery power. $90ea at sams club. 4x would...
  • Post in thread: 100% off grid modern home?

    first off... welcome! yes, totally doable at just about any lat/long. it all comes down to budget. IMO, I would go for multiple smaller fixed ground mounts at varying heading to maximize production through the day. i would have a small climate-controlled utility building housing all the...
  • Post in thread: 10/2 MC armorlite in attic DC from roof box to disconnect -- attic temp derating?

    yep, sure did @ChrisG -- worked exactly as expected. i posted it all in my show-and-tell thread.
  • Post in thread: Utility company visited me for exporting from my solar Off-grid growatt LVM-ES SPF 3000TL

    that makes sense, in that case, I could never backfeed.
  • Post in thread: Connecting 6 AWG to smaller gauge wire

    busbars like these are awesome: https://smile.amazon.com/MidNite-Solar-Long-Terminal-Bus/dp/B073TBGDX1/ alternatively, copper crimping sleeves work great with shrink wrap
  • Post in thread: EG4 (or other off grid all in one) vs Sol Ark 15k

    EG4 are not UL listed for residential installation nor do they support grid-tie. they really can't be compared in the context of anything "grid-tie"
  • Post in thread: Real-life winter production in SW Michigan -- lesson learned; have a backup battery charging source!

    Midnite classic 200. it's fine... I get some production on some days, like 10-80watts, but that's typical and not even remotely usable. Barely enough to charge my phone up, lol.
  • Post in thread: Buried line from panel to house

    Let's also be specific... underground in conduit, not just buried bare. THWN is what I know is correct. XHHW-2 should also work based on what i'm seeing online. you need wet rating at 90degC. https://www.awcwire.com/allied-university/this-vs-that/xhhw-2-vs-thhn-thwn
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