diy solar

diy solar

Recent content by kernel

  1. K

    How would you build this sysytem?

    If you are at 12v, id say you need huge diversion, a larger battery and 3 more controllers. Best way is to automate or manually introduce and shed loads as with 5500Wpv there is so much power which could not otherwise be used in the system without a larger battery.
  2. K

    300 watt mono or 330 watt poly??

    The original question was basically 'is it worth 3$ more per module, not double per....... big difference and highly subjective when the cost disparity flip flop when discussed. I understand people are spending their money and when uncertain it gets all kinds of protective, desperate and...
  3. K

    300 watt mono or 330 watt poly??

    @gnubie Sure will. You could check home power in the mean time. And heres some reading you shouldnalso actually read the nrel and doe papers........ if its that serious a subject to you. https://pv-magazine-usa.com/2018/12/10/solar-module-lifetime-predictions-getting-better/#content...
  4. K

    300 watt mono or 330 watt poly??

    As i said....... the absolute worst question is the one that is already answered in the askers mind........ its such a trap i refuse do it. At some point any aspect of architecture amd component selection is highly subjective and it is impossible #1 to be absolutely spot on correct every time...
  5. K

    Building a Portable Solar Unit- Need Critique on Drawing

    Could you post the print as an image file? Try not to download links.
  6. K

    battery lug questions

    Yes, absolutely there are values for all fasteners. Loose electrical connections are a leading cause of fire especially in a battery system without fusing amd sometimes innspite of it.
  7. K

    Definitely a beginner - help welcome

    A great example of de-prioritizing a battery, the seasoned will het it at a glance...... 12k$ us in powerelectronics and a marine deep cycle starting battery fleet of leprosy with tiny cables. The arrays are huge and they bought a large thermal hydronic system that does not work. The system...
  8. K

    Definitely a beginner - help welcome

    If it makes it affordable and can be replaced in a few years, marine deep cycles are ok. Heck most of the long time installation companies charge for true deep cycle and supply marine anyway. A set of marine deep cycle batteries will likely be ok because they live in float amd not cycle use...
  9. K

    Definitely a beginner - help welcome

    Ballast mounts with block. It can be made of wood or metal. No problem.
  10. K

    Definitely a beginner - help welcome

    Now, that is from a person who gives shit advice for diy........ and lives on solar diy......and helps others live on a quasi diy where we gve assistance to actual paying clients to bring it together which most companies avoid like a plague. So i hope the op gets the drift has no fear and goes...
  11. K

    Definitely a beginner - help welcome

    It is an emergency power supply. The battery, grid charger and inverter are the place to put money in this type system, especially if the person is wanting to upgrade or have the option. Op says balcony mount, totally doable and that they have good exposure. ( i left this on my clipboard and...
  12. K

    Definitely a beginner - help welcome

    No, 6v golf car batteries are gc2 7.5"x10ishx 10ish" just like most of them. 119$ 235Ah Crown. Most balconies < spelling? ) would easily be 80" wide or better, so im not sure 66"x39.5" is what you consider huge, but they will be more useful, have less parts cost to mount and have higher power...
  13. K

    General info on solar heater

    Fat old, i got it wrong on nomenclature....... cells do come with reflective backing to reflect light back onto the back side of each cell, hanwha q cell possibly, rec, sunpower, etc. Build it solar is great. I built my immersed coil HE tank from guides there, plumbed with pex and holds reverse...
  14. K

    Definitely a beginner - help welcome

    If your budget is only going to allow so much. Id skip space heating and go with sweaters amd blanketry unless the sun is blazing and your battery is nearly full. There are time you can manage loads in order to use something "too big" for the sytem. Id reach for 4 golf car batteries, a cheap...
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