Recent content by @BDR

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    Expert recommendations for inverters and solar panels - April 2024

    You can do it. Install it in 45 deg C ambient and then run it with maximum load for a sustained period. I've been designing systems with inverters since 1998 and I haven't come across one inverter brand that doesn't derate with increased temperature. If you think that Sunsynk doesn't derate then...
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    Expert recommendations for inverters and solar panels - April 2024

    All inverters derate with an increase in temperature. It is normal physics. Even those using HF technology will derate. Other manufacturers just don't mention it in their specs.
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    Expert recommendations for inverters and solar panels - April 2024

    Yes you can, but if in the same array, the default output of each panel will be equal to the panel with the lowest specification. It's not best practice.
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    Expert recommendations for inverters and solar panels - April 2024

    Quite. It should be the 48V MultiPlus II with anti-islanding built in. Be careful to check the power description. Victron designates their inverters in kVA not kW. There is a difference. All inverters will derate the output as the temperature climbs. Specs are usually given at 25 deg. C.
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    How do you feel about South Africa's prospects for 2024?

    Depends on if the ANC disgrace of a government is kicked out in the next election.
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    Which large food retailer do you support the most often?

    Every time I feel like traveling abroad I go to our local Pick n Pay. It feels like I'm shopping in rural Zimbabwe.
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    How do you keep fit?

    I'm so busy trying to keep my business alive in this broken economy that I don't have time to exercise. I rely on my elevated heart rate and sweat generating fear when I negotiate the crime ridden streets on my way home, to burn calories. Seems to be working, and it saves money on a gym membership.
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    Experts weigh in on rooftop solar incentive plans for South Africa

    Shows how out of touch the experts are. As an importer of PV Panels, LFP batteries and inverters, there is no duty payable on these items. So no relief there. Tax break is the only way.
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    These are all the projects Johann Rupert supports

    How about a similar list for: Patrice Motsepe, Nicky Oppenheimer and Koos Bekker. Would be an interesting comparison.
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    These are the bank branches where you can get your passport or Smart ID

    I have used Standard bank Canal Walk, Century City, Cape Town Home Affairs. The Standard Bank Canal Walk branch is not on the list. You need to be a client of the bank to use the facility and payment and appointment day and time is done through the Home affairs Portal. A painless and convenient...
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    Buying a Tesla Powerwall in South Africa

    Why the free punt for Tesla and the local distributor? There are much better, more versatile and cheaper custom solutions available. Maybe not as glossy to show off on your lounge wall but then maybe some people like their mates to see what they can afford. Better to have a system stuck away in...
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