diy solar

diy solar

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  • Post in thread: Unintended consequences of Solar that we see

    A young lady that lives down the road said if the power is ever out for an extended period of time, she's coming to my place for a shower because I'll have hot water.
  • Post in thread: Battery cable length - from Lynx distributor

    A good installer would have put the wiring inside a cable tray so you couldn't see the unequal length. ;)
  • Post in thread: Is victron a great company with great products or are they just like microsoft and the defacto brand leaders?

    I thought the same until I bought my first Victron product. What's all the fuss about blah blah blah. Then purchased one or two Victron products. Holy smokes this stuff actually works like it says on the tin! Holy smokes this stuff networks together and provides a wealth of information! I'm...
  • Post in thread: Victron is Over-priced Eurotrash. Why would anybody buy Victron over an AiO?

    I have constructed two separate modest off-grid systems on my house. One system is using 3 Epever SCCs and the other system is using 2 Victron SCCs and a Victron smart shunt and Phoenix 12/1200 inverter. Now having lived with both systems for a while, I feel the Victron gear is worth every...
  • Post in thread: Victron MPPT over panelling

    Victron are fine with overpanelling relative to the output of the SCC. In fact they even recommend it. Have a play with their MPPT calculator and be sure to click on the 'Allow oversizing above 130%' tab. https://www.victronenergy.com/mppt-calculator This is what they have to say about...
  • Post in thread: What's the best solar-related item you bought in 2023?

    I upgraded all my Epever solar charge controllers to Victron SCCs. Was well worth it.
  • Post in thread: Happy Equinox to all

    Not for us in the southern hemisphere. It's all uphill from here! ??
  • Post in thread: Victron is Over-priced Eurotrash. Why would anybody buy Victron over an AiO?

    You can add fuses to the Power In.
  • Post in thread: Interesting phenomena

    Yes if your panels are near a lot of trees, you could generate more on a slightly cloudy day than on a clear sunny day. The light on a cloudy day is defuse and comes from multiple directions rather than just from the sun itself on a sunny day. A single shadow over a panel can kill a lot of...
  • Post in thread: Victron MPPT over panelling

    Here's an example I'm running on a 12v system. 1200 watts of PV going to a Victron 100/50. 6 200 watt panels in a 3S2P configuration. The 100/50 has a max output of 700 watts to a 12v system. But by giving it 1200 watts of panels to draw from, it can reach that 700 watts output for longer...
  • Post in thread: What are you doing to save energy?

    I'll start at the biggest energy savings from my home. Stayed single.! Purchased a small modest but well insulated house. No spar pools or swimming pools. Do all my laundry in cold water and dry outside on a clothesline. I just couldn't imagine running a 4kw clothes dryer when free solar...
  • Post in thread: How does a cable lug maintain the cable's capacity?

    That's a cheaply made lug. They have drilled a too big a hole in too small a lug. A properly made lug will be wider in relation to the hole size.
  • Post in thread: Victron is Over-priced Eurotrash. Why would anybody buy Victron over an AiO?

    Thanks. Your post just reminded me change my avatar pic.
  • Post in thread: Bi-Facial vid I found interesting

    When you've got a decently sized battery bank, the time of your solar production isn't as critical. The total solar production for the day is what counts. I don't see the slight increase in the shoulders of the daily curve making up for the large dip in midday production when your number one...
  • Post in thread: Victron MPPT over panelling

    I've done that on the two arrays that I oversized by 200%. I have a 150/60 set to 50A and a 100/50 set to 45A. They run significantly cooler that way and the bus bar that they're attached to isn't getting as overloaded. (It has other SCCs going to it as well) The benefit of oversizing PV...
  • Post in thread: Victron MPPT over panelling

    Even something like their 150/45 can be overpanelled on a 48V system. At 48V it has a max output of 2600 watts. Entering the details of a particular panel I use, I could build an array of 6240 watts. That would be 240% overpanelled.
  • Post in thread: cheap Mppt any good ?

    As I have been upgrading my SCCs from Epevers to Victron SCCs, I came to realise that the drive for more efficient PV panels is pretty small gains compared to the big gains of more efficient SCCs. They can make a big difference in PV array performance.
  • Post in thread: Victron MPPT over panelling

    Just pointing out as the other poster was trying to imply that they can be overpanelled on a 12V system because they are also capable of running 48V systems. Yet they can be substantially overpanelled on 48V systems as well.
  • Post in thread: Epever 3210AN charge controller dropping out of MPPT mode

    Not that I'm aware of. They always seem to be doing a very good job of getting every watt that the light will allow. They typically start off at 1 watt in the morning and will follow a bell curve until they hit charge voltage.
  • Post in thread: Units moderator. There should be a units moderator assigned.

    I was going to say, what the hell is a Kwhr...???
  • Post in thread: Victron is Over-priced Eurotrash. Why would anybody buy Victron over an AiO?

    I use a Victron 'Smart Battery Sense' to send voltage info to the SCC. That's why the network symbol is there on the screen.
  • Post in thread: Epever 4215AN charging dystrophy, and cutting out. Trials and possible solutions.

    I have two separate lifepo4 battery banks at my place with 4 Epever SCC'. (2 strings on each bank) I did notice those occasional days when a SCC just couldn't be bothered putting watts into a 80% SOC battery when there was full sun in the sky. I have independent bluetooth voltage recording and...
  • Post in thread: North facing panels do better on cloudy days than south facing. Weird.

    Then I would say the 15 degree north panels see more sky on a diffuse cloudy day.
  • Post in thread: Victron is Over-priced Eurotrash. Why would anybody buy Victron over an AiO?

    The lounge system that had 3 strings going to 3 Epever SCC' is now being upgraded to Victron SCC' one at a time as the budget allows. One string is 520 watts, 780 watts and one is 1500 watts PV. I replaced the 520 watt PV string with a Victron 150/45 SCC. All strings are on the same roof...
  • Post in thread: Victron is Over-priced Eurotrash. Why would anybody buy Victron over an AiO?

    That's not battery voltage. It's the voltage that the Epevers are regulating the solar panels to.
  • Post in thread: Victron is Over-priced Eurotrash. Why would anybody buy Victron over an AiO?

    I've had the same experience. Swapped out all my Epevers to Victron SCCs and my system is performing so much better now. Plus much better data logging.
  • Post in thread: Get a big battery

    I have a big battery bank relative to my PV. 9.2:1. 2.8kw of PV to 25.8kWh of LFP batteries. Knowing I'll still be on around 90% SOC in the morning is nice. Three or four days of bad weather still sees me on around 50% In normal good sunshine days back to back the battery bank will be fully...
  • Post in thread: Crazy things you do with excess power

    They're big enough to cover 5 or 6 days easily. Which is more than enough to cover 95% of the usual weather patterns where I live in New Zealand. It's going to be different for everybody. My point is I'm content when the batteries are full and the solar has rammed down just to cover...
  • Post in thread: Water heating through SCC

    I'm happy enough just using PV to a decently large battery bank and then using a dedicated inverter (I'm only on 12v) to run my hot water cylinder with its standard 2kw AC element and thermostat. The reason being is that I can unplug it from the inverter and plug back into the grid whenever I...
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