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Joined: Jan 20, 2022
Last seen: Sep 14, 2025
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Topics: 16 / Replies: 2460
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RE: Water Cylinder v Thermal Store

That's useful to know. In my case I'd be expecting take output from a HP at a maximum 50C for both DHW or UFH use. The ability of a HP to offer two di...

3 years ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Water Cylinder v Thermal Store

Well that's pretty clear @heacol ... except that I do not understand why this should be so. 🤔 What is different in a heat pump such that it lacks e...

3 years ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Water Cylinder v Thermal Store

Thanks for the pic @bontwoody 😀 The top of my thermal store would usually reach 55C but can go higher on a sunny day like today. There's no limit s...

3 years ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Water Cylinder v Thermal Store

I agree @heacol and I've had a 280-litre thermal store supplying DHW and UFH for the past 17 years. For the sake of others reading these comments, c...

3 years ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Anyone want to share costs on batteries?

That's good news @batalto - the existing Sofar ME3000SP had its grid-limitation system approved by ENA in addition to it having G59 certification. Tho...

3 years ago
Forum
Energy Storage
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RE: Water Cylinder v Thermal Store

Can you please expand on the decision to opt for an (unvented) cylinder rater than a thermal store @bontwoody ? Looking at the tables you published,...

3 years ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Anyone want to share costs on batteries?

For others trying to follow this in future, here's the type of inverter which I think @batalto is really trying to implement. It has no possible exp...

3 years ago
Forum
Energy Storage
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RE: Anyone want to share costs on batteries?

Take this back to first principles @batalto The following diagram is permitted because it cannot export back to the grid. You would not even require...

3 years ago
Forum
Energy Storage
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RE: Anyone want to share costs on batteries?

Does the Sofar 3kW unit have the same issue as the Goodwe Point-1 (above)? The system diagram has an arrow suggesting it has grid-connected export: ...

3 years ago
Forum
Energy Storage
Reply
RE: Anyone want to share costs on batteries?

Thanks for the link @batalto. So I have three initial observations about the Goodwe unit you've mentioned: 1: It has grid-export capability. Even if...

3 years ago
Forum
Energy Storage
Reply
RE: Anyone want to share costs on batteries?

That's a very good question @batalto ! I'm working with others to develop a new control unit to operate heat-pumps off-grid. For obvious reasons I w...

3 years ago
Forum
Energy Storage
Reply
RE: Anyone want to share costs on batteries?

@batalto - I have no objections to Luyuan or Basen. You can find Xuba here on Alibaba. Brian Chen sends me details for the ship in addition to the f...

3 years ago
Forum
Energy Storage
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