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@transparent
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Illustrious Member
Joined: Jan 20, 2022
Last seen: Jul 24, 2025
Profile Activity
Topics: 16 / Replies: 2416
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Reply
RE: DIY solar upgrade - Considering adding more panels

Over here in a topic about solar thermal panels(!), this question was asked: I'm unclear whether you are considering fitting fewer than the 10 po...

11 months ago
Forum
Solar Photovoltaic (PV)
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RE: How much more can we learn and then use ourselves from @transparent’s systems?

Then you don't require consent from your DNO. 😀 G98 is the certification required for a device to be connected to the grid for export purpo...

11 months ago
Forum
Energy Storage
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RE: Would you accept this heat pump installation?

I agree.A second black downpipe next to the one around the corner would've looked less conspicuous.The flow, return and electrical supply could all be...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: How much more can we learn and then use ourselves from @transparent’s systems?

Here's a top-level system diagram @judith Most of the 'mains' 240v stuff is running from the batteries.There's a separate consumer unit for t...

11 months ago
Forum
Energy Storage
Reply
RE: Will heat pump heat hot water without increasing the temp in my home?

It depends which side of the fence you're on. The MCS regulations do little to protect customers,but they're of great value to the accredited instal...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Will heat pump heat hot water without increasing the temp in my home?

Yes, @judith is correct. You must be given site-specific information about your installation, not just generic documents from manufacturers of applian...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Say hello and introduce yourself

Very true. The best way to train engineers is to breed them. But even that's thwarted by regulations.I can get safety-glasses and hard hats for a ...

11 months ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: Say hello and introduce yourself

With a technical CV like that @jancold you'll soon find yourself answering questions from others here! True. I started with an off-grid arrangeme...

11 months ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: Say hello and introduce yourself

I don't think there's a clear answer to that.It depends... And that's one of the problems with the PAS63100.It's trying to stipulate how an installa...

11 months ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: Say hello and introduce yourself

Yes. Not only is PAS63100 not mandatory at this stage, but existing installations are exempt. Even so, the Standard has been a year in development b...

11 months ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: Say hello and introduce yourself

Will the installer be laughing when you tell him that the new PAS63100 Standard states that domestic storage batteries shouldn't be within the habitab...

11 months ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: Broken evacuated tubes

I would be surprised if there's much tail-off in efficiency from a solar-thermal vacuum tube.Being 25 years old isn't a reason to replace the radiatio...

11 months ago
Forum
Solar Thermal & Power Diverters
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