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solar

  1. cyberwombat

    Do I need AC disconnect when only on solar/residential

    Builder owner in Coconino County (2017 NEC) working on my ground mounted solar. Working on the labels and final design and unsure whether I need an AC disconnect when there is only one AC source to the main panel. Does the main panel act as the AC disconnect? The inverters are about 30ft away...
  2. S

    Does a 2mX2m solar collective panel attached to the roof of a house need the design of a P.Eng.?

    As per Ontario building code, does a 2mX2m solar collective panel attached to the roof of a house need the design of a P.Eng.? Where is the clause of the code?
  3. jar546

    PV System Installs Need Better Inspections

    I found this news story interesting and it is something I did not think about in the past. The type and compatibility of connectors used. Unfortunately, many times we don't see the connectors because the system is already in place and we do one inspection. Only once did I have a contractor...
  4. Nearly-Complete

    Solar Power Optimizers and Maximum Inverter Voltage

    SolarEdge tells their designers to design a system based on the maximum power because their optimizers keep everything at the right voltage for the system. https://www.solaredge.com/us/guide-designing-with-solaredge Is this supported by code? CEC 690.7 (a) states that the maximum voltage shall...
  5. ICE

    I hate touching stuff.

    Click on the picture and you'll get a clip.
  6. ICE

    Stop the madness

    I'm sorry to say that this thread has been corrupted. The pictures have been deleted at Flickr so they are gone from here. The largest solar outfit in CA has a terrible habit of leaving energized equipment wide open and unattended. An employee will have four and five inspections scheduled...
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