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  1. tictag

    Good Video Explaining The Puekert Effect

    I thought this video explains the Puekert Effect very well, including the significant differences between lead-acid and lithium-ion.
  2. tictag

    Interesting Full PV Residential Off-Grid Install

    Interesting full PV residential off-grid install: It's interesting to see the size/scale of these components and cables, only being used to small mobile vehicle installs myself. I like the fact that they have their cake and eat it with the hybrid inverter (grid-tie + off-grid). My only doubt...
  3. tictag

    Decided To Go For It - Career Change Imminent!! ?

    So I've been umm'ing and ahh'ing about if for a while but I finally decided to embark on a new career - I'm going to re-train as an electrician. I've worked out all the courses and 'ologies I need and have enrolled on my first course starting 13 Sep 2020: City & Guilds [2365-3] Level 3 Diploma...
  4. tictag

    Something Interesting About Victron Solar Charge Controllers

    I learned something interesting about Victron Solar Charge Controllers (SCC) the other day. Most SCCs on the market provide two important specifications: Maximum PV Voltage and Maximum PV Power, and you can use these to correctly size your SCC to your PV array. Victron SCCs do not follow this...
  5. tictag

    What's The Best BMS? (Grrrr... ?)

    How many times have we heard the question, "What's the best BMS for my situation?" on this forum and how many times have we responded, "Well, it depends..."? We then go on post-after-post, page-after-page talking about what BMS's are there to do, what BMS's are available, posting caveats and...
  6. tictag

    Solar Energy Innovations

    Just watched this and thought of you lot... I liked some of the innovations around cooling PV panels but figured some kind of PV / solar-thermal hybrid would be a more commercially viable prospect i.e. fluid-cooling the array, then exchanging that heat for home heating at night. Or going the...
  7. tictag

    Lead-Acid Batteries And Battery Boxes

    For the longest time I have known that lead-acid batteries used/stored within a living space e.g. RV/Caravan/Residential etc should be stored in a air-tight, sealed battery box or battery compartment with pipes connected to each release valve (assuming here maintenance free VRLA types...
  8. tictag

    NEC Guidelines For PV Cable

    I noted in this thread that "Input conductors and circuit breakers breakers must be rated at 1.56 times the short circuit current of the PV array (per NEC)". When I'm sizing PV cable I usually ensure that the cable is rated for the maximum possible current (let's say Isc = 10A) using tables...
  9. tictag

    Interesting YouTube Video on Valance / LiFePO4 Batteries (Joe Scott)

    Interesting YouTube Video on Valance / LiFePO4 Batteries (Joe Scott)
  10. tictag

    Just a quick hello

    Just a quick hello to the forum. I'm David from the UK joining this forum because I've really enjoyed Will's YouTube channel. I've had my own off-grid system installed in my caravan for some time but it needs an upgrade. Will's channel has motivated me to do it! Last time I did any design, LFP...
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