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Graeme
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Graeme
@graeme
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Joined: Apr 21, 2024
Last seen: Aug 29, 2024
Profile Activity
Topics: 3 / Replies: 16
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Reply
RE: Off Grid PV to Immersion

"Off-grid" means "off-grid", whether it is in the Highlands, Berlin or Tokyo. My original post is about designing a system not connected to the grid i...

9 months ago
Forum
Solar Thermal & Power Diverters
Reply
RE: Off Grid PV to Immersion

What you are suggesting doesn't seem to be off-grid, but rather balancing the grid by using home - batteries. Storing excess grid power in people's ho...

9 months ago
Forum
Solar Thermal & Power Diverters
Reply
RE: Off Grid PV to Immersion

Indeed! We should be primarily considering the off-grid route. [Then]... Local battery storage within the home (or school, or farm) is a strategy ...

9 months ago
Forum
Solar Thermal & Power Diverters
Reply
RE: Off Grid PV to Immersion

And good thoughts too! Thinking flexibly is important. My main roof is East/West. Which makes the PV's only 75% efficient as South facing. However, as...

9 months ago
Forum
Solar Thermal & Power Diverters
Reply
RE: Off Grid PV to Immersion

[nice setup btw] I know! I have three problems - [Having already used up all my main roof for conventional PV] (1) I now have limited roof space - I...

9 months ago
Forum
Solar Thermal & Power Diverters
Reply
RE: Off Grid PV to Immersion

An adapter would work - but I would be hesitant to fix it up to an unvented system - from what I have read elsewhere, some Willis heaters state on the...

9 months ago
Forum
Solar Thermal & Power Diverters
Reply
RE: Off Grid PV to Immersion

@johnmo Interesting idea! Unfortunately, it can only be used on vented cylinders, and the heating element thread is 2.1/4" BSP. But worth a check. ...

9 months ago
Forum
Solar Thermal & Power Diverters
Topic
Off Grid PV to Immersion
9 months ago
Forum
Solar Thermal & Power Diverters
Replies: 15
Views: 1614
Reply
RE: SCOP and seasonal variations

@ivanopinion Yes they are a help of sorts. My outdoor temperatures are 1C(low)-6C(high), 2C-9C, 8C-16C, 11C-19C. Average these to 3.5C, 5.5C, 12C,...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: SCOP and seasonal variations

@majordennisbloodnok Yes. I have HA is still a learning curve I need to embark on!

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: SCOP and seasonal variations

@majordennisbloodnok Apologies - now I understand what you are doing and why it requires a leap of faith. I will need to delve into the data in more d...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: SCOP and seasonal variations

@majordennisbloodnok That was very helpful Unfortunately, I have already baked in the savings. I fill my battery everynight. In Jan/Dec my curren...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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