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cathodeRay
cathodeRay
@cathoderay
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Illustrious Member
Joined: Feb 28, 2022
Last seen: Sep 12, 2025
Profile Activity
Topics: 17 / Replies: 2131
AllTopicsReplies
Reply
RE: Local monitoring and control of inverter - gaps in understanding

Great, you must be very pleased! I'm also sure others will welcome a separate thread with details of your wider setup, and a slightly different emphas...

2 years ago
Forum
Solar Photovoltaic (PV)
Reply
RE: Local monitoring and control of inverter - gaps in understanding

@majordennisbloodnok - my hunch is that it is the device address. This can be a gotcha - you can't ask it what it's device address is without knowing ...

2 years ago
Forum
Solar Photovoltaic (PV)
Reply
RE: Local monitoring and control of inverter - gaps in understanding

@majordennisbloodnok - cripes, it sounds complicated! At its simplest, a modbus connection is just two wires, A to A and B to B, plus (optionally) a...

2 years ago
Forum
Solar Photovoltaic (PV)
Reply
RE: My horrific Samsung heat pump installation and experience

Once you get the hang of it, it isn't complicated. This is a very simple unadorned example that gets data from my minute data csv file and plots it: ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My horrific Samsung heat pump installation and experience

@iantelescope - date-time formats can be very tricky, especially with software that likes to be 'clever' - and then gets, for example, month and day m...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My horrific Samsung heat pump installation and experience

If you can log the data to csv files (eg using python), then you can plot the data any which way using any spreadsheet. You can also use python plotti...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Electricity use

There are a number of threads on this forum, some very detailed, that cover energy and/or electricity use (both matter, and of course they are related...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Real world connection to a heat pump over modbus

@mosibi - thanks for your contribution, looks like an interesting project! However, it does tie the user to using your hardware, ESPHome and Home Assi...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Creative trials on Night-time Setbacks to @ faster recovery, improved comfort and even greater energy reductions.

Yes, as has been all my OAT data to date, meaning charts are comparable, as in showing the same data from the same sensor. I do now have an outdoor ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Creative trials on Night-time Setbacks to @ faster recovery, improved comfort and even greater energy reductions.

Continuous running: weather compensation (room stat at 26 ie 'always on'); setbacks timed by turning the room stat down to 12 degrees between 2100 and...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Creative trials on Night-time Setbacks to @ faster recovery, improved comfort and even greater energy reductions.

I've been running with 6 hour overnight setbacks for the last week. Here is the last two weeks noon to noon mean OAT and energy use, left hand side no...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Creative trials on Night-time Setbacks to @ faster recovery, improved comfort and even greater energy reductions.

@sunandair - interesting. I have added an eyeballed trend line, ignoring the outlier, and the general shape of the curve is very similar to the curves...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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