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Joined: Jan 20, 2022
Last seen: Sep 8, 2025
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Topics: 16 / Replies: 2453
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RE: What do we need to know before installing a heat pump?

The raw data was supplied to me by the most senior engineering contact I have in NGED. He was responding to a point I'd made that losses were confin...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: What do we need to know before installing a heat pump?

Ah... well that seems to prove the case. In discussions with senior engineering managers at NGED, they have cited harmonics from heat-pump installat...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: What do we need to know before installing a heat pump?

Ah... that's not how I thought a (domestic-sized) 240v AC pump was operated using PWM. I expected the basic 50Hz to still be applied, but that it wo...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: What do we need to know before installing a heat pump?

Why? Please expand on this. Yes I understand that an (AC mains) electric pump requires a certain amount of electricity to get it started and then ...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: Solar panels not working correctly? what checks can I make?

If by 'meter' you mean the household Smart Meter or an MCS-approved meter on the mains-output side of an inverter, then there's no problem with those ...

2 years ago
Forum
Solar Photovoltaic (PV)
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RE: My experience with the Selpos Mason DIY kit

I doubt those 'Victron' bus bars are different to scores of others available with current capacities up to 500A Personally, I've decided to ma...

2 years ago
Forum
Energy Storage
Reply
RE: Solar panels not working correctly? what checks can I make?

MC4 connect/disconnect tools can be bought cheaply online.But beware that the cheaper ones are likely to be sent direct from China, with a resulting d...

2 years ago
Forum
Solar Photovoltaic (PV)
Reply
RE: My experience with the Selpos Mason DIY kit

Current limiting in what part of the system? In the BMS unit of the Mason box whose battery has the lower capacity? My experimentation suggests th...

2 years ago
Forum
Energy Storage
Reply
RE: A beginner's journey into DIY home energy storage - no solar!

You're quite right to ask for clarification, @bretix My comment about a second device being installed was made in response to what @robl had just po...

2 years ago
Forum
Energy Storage
Reply
RE: My experience with the Selpos Mason DIY kit

I tend to agree. I have been doing a lot of experimentation with busbars coupling batteries and inverters over the past year.My approach also incorp...

2 years ago
Forum
Energy Storage
Reply
RE: What do we need to know before installing a heat pump?

To identify what is going wrong with so many of our heat-pump installations, we need the range of approaches and analysis which is occurring in this t...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: Solar panels not working correctly? what checks can I make?

It is likely that each panel connects into its Solar Edge optimiser using MC4 plug/socket. Then the optimisers are joined into a string using anothe...

2 years ago
Forum
Solar Photovoltaic (PV)
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