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Transparent
@transparent
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Illustrious Member
Joined: Jan 20, 2022
Last seen: Sep 9, 2025
Profile Activity
Topics: 16 / Replies: 2454
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Reply
RE: Broken evacuated tubes

If you've recovered 15 tubes which still seem to work, then you could consider using them in a greenhouse environment. Even if they are now only hal...

12 months ago
Forum
Solar Thermal & Power Diverters
Reply
RE: Broken evacuated tubes

At what angle? I'm unsure what fluid is within the copper tube, but my understanding is that it changes density, thus rising up to the top when hot....

12 months ago
Forum
Solar Thermal & Power Diverters
Reply
RE: How much more can we learn and then use ourselves from @transparent’s systems?

Hmm. It's unclear from the "glossy" GivEnergy website which features differ between their AC inverters and Hybrid inverters. I've located the manual...

12 months ago
Forum
Energy Storage
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RE: How much more can we learn and then use ourselves from @transparent’s systems?

Erm... yes. That's correct. The AC3 is the most basic/standard inverter I could find on the GivEnergy website.And it's rated at 3kW. So your...

12 months ago
Forum
Energy Storage
Reply
RE: How much more can we learn and then use ourselves from @transparent’s systems?

I'm just tagging @lucia here, not just because she expressed an interest in an off-grid approach when posting over on the topic about Ofgem's request ...

12 months ago
Forum
Energy Storage
Reply
RE: How much more can we learn and then use ourselves from @transparent’s systems?

If that's a 9.5kWh battery from Givenergy, then you must have a separate inverter.They don't do an 'all-in-one' model with that capacity. The batt...

12 months ago
Forum
Energy Storage
Reply
RE: Broken evacuated tubes

I'm suggesting that you weigh the tubes in order to confirm that the only fault is the loss of vacuum. If all the tubes (hot & cold) still weigh...

12 months ago
Forum
Solar Thermal & Power Diverters
Reply
RE: Broken evacuated tubes

If air has replaced the vacuum, then those tubes will weigh more. Put them on kitchen scales and see if there's a difference.

12 months ago
Forum
Solar Thermal & Power Diverters
Reply
RE: Broken evacuated tubes

Here we have hazy-sun, manifold reporting 51°Cand the glass is below the temperature of my hand, so I guess you'd describe them as 'cold' I wonder i...

12 months ago
Forum
Solar Thermal & Power Diverters
Reply
RE: Broken evacuated tubes

It's difficult to keep the undersides of the vacuum tubes clean, let alone any reflecting surface below it.The lower the angle of the tubes, the worse...

12 months ago
Forum
Solar Thermal & Power Diverters
Reply
RE: Say hello and introduce yourself

@burtis there's considerable overlap with the list you've just posted and points which we've discussed earlier this year in the (large) topic called I...

12 months ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: Mars spotting….

Interesting... I'd been wondering if Mars is related to Björn Ulvaeus

12 months ago
Forum
Well & Truly Off The Grid
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