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    Schuco mounting clip found after bad weather-should I be worried?

    you need an allen key.
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    Review and Critique My Off Grid House Plans Please

    hard to answer without the right units - what does this mean? "I have worked out that my usage is approx 5000w/day" That figure needs to be in kWh a day, and the peak consumption level is also useful. Are you saying your consumption is 5kWh a day? 600Ah x 48V = 28.8kWh which at 50% daily...
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    Who Are Our Resident Green Energy / Solar Experts?

    tell them to assess you under the experienced worker route, and use the evidence of the number of MCS certs issued each year as your evidence of the necessary level of experience along with the original training.
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    Starting out again - What would you do differently?

    I wonder what proportion of quarterly review minutes have been written up the day before the annual inspection?
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    Panel Outputs. A newbie needs some advice please.

    I've just noticed that there seem to be 2 different sets of specs for this inverter. One spec has the MPPT range as 120V-350V, the other has it at 50-400V. That may have been a typo, but it also ended up in the manual. odd. I see what you're saying kaju and that's going to be having an...
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    Who Are Our Resident Green Energy / Solar Experts?

    what mcs requirement is this? They would seem to be ignoring the 5 years relevant experience rule that automatically qualifies someone without any need for courses IIRC.
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    Panel Outputs. A newbie needs some advice please.

    it looks like you have shading of some nature (maybe bird droppings) on the smaller array, sufficient to knock out 2-3 strings of cells in bright sunlight but not in cloudy weather. Or one of the panels on the smaller array has particularly bad cells in it / is actually a much lower rated...
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    hydro electric forum.... erm

    am I missing something that's about to lead to a big increase in the number of hydro electric inquiries coming to the forum?
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    Panel Outputs. A newbie needs some advice please.

    but this really is something the installation company should be checking under warranty, 25% underperformance relative to another almost identical system on the same site with no shading should merit a warranty visit... as long as you're sure that the garage system isn't subject to shading.
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    Panel Outputs. A newbie needs some advice please.

    inverters tend to measure the DC ampage and multiply that by voltage and some allowance for average inverter efficiency to produce their KWh figure. The level of inaccuracy is therefore dictated by the difference between the actual inverter efficiency and the assumed efficiency in the...
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    Panel Outputs. A newbie needs some advice please.

    as sibert indicates the 4 panels are way undersized for the 3kW inverter, and you're losing a significant portion of that generation as a result. I'd put that in as a formal complaint to the company and ask them to rectify it under warranty, which is going to mean that they need to put in a...
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    RISO seems low

    if it keeps dropping then it indicates a likely problem, good to keep a note of the weather conditions when it's worst - ie if it's when it's wet / wet and cold / dry and sunny etc as that helps to narrow down the likely issue.
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    Starting out again - What would you do differently?

    for a one man band in particular you want to view the repair side of the business as a major element of it. We're doing multiple repairs per week at minimum £150+ vat call out charge for 2 hours work. People will pay extra for that solar expertise, and there are hundreds of thousands of systems...
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    E110 Has No Display

    sounds like the spark wired it wrong, blew the display, then wired it back up correctly and scarpered. The wiring of the meter isn't a problem for any spark, sorting it out with the fit supplier is probably best done by a pv company used to such things. Won't your original company even do it...
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    E110 Has No Display

    sounds like it's been wired wrong then, and may well function when wired correctly, or not if he's blown the meter first, then just wired it up and not said anything.
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    E110 Has No Display

    when was that fitted and has it ever worked? The wiring looks wrong, it's certainly wrong for all the E110's we've ever fitted, but then it also looks different and has a combined neutral block on the right, so maybe they've introduced a new model. Usually it would have live from the inverter...
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    Help! Solar Pv System Question

    showers need a dual pole RCD IIRC. It's usually simple enough though to wire the circuit to the solar pv from the non-protected side of the RCD.
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    Help! Solar Pv System Question

    ps it does sound like a proper bodge job, panels should be level, that's just basic level professionalism, and panels that aren't level from one row to another or one panel to another absolutely can cause issues with microshading that some inverters struggle to cope with. There are even threads...
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    Help! Solar Pv System Question

    6% below the estimate is well within the range of performance that could be expected from an MCS estimate, the estimates are based on regional data, and within each region there can be +/-10% variation from the average depending if you're in a more hilly rain affected part of the region or the...
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    E110 Has No Display

    it's a simple task to swap out the meter, then notify the fit supplier of the change of metering details. Unfortunately if the screen is bust then you're a bit scoobied on the generation since the last reading, unless the fit supplier is saying they'll take the inverter reading instead.

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