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Illustrious Member
Joined: Jan 20, 2022
Last seen: Aug 23, 2025
Profile Activity
Topics: 16 / Replies: 2434
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Reply
RE: Mitsubishi ASHP - Circulating pump noise?

I wouldn't be happy with the level of insulation or the fitting on the photos from @toodles The brass isolation valves behind the ASHP remain enti...

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

It definitely won't @drew-pa The standing charge is based on seven different parameters, but is substantially set by what Ofgem allows for the regio...

2 years ago
Forum
Electricity, Tariffs, Monitoring & Providers
Reply
RE: Say hello and introduce yourself

Hi @jamespa you are very welcome to lever whatever knowledge you wish from this Forum. Roughly whereabouts are you in the UK?Have you got any commun...

2 years ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: A beginner's journey into DIY home energy storage - no solar!

The specification for the UK mains distribution grid is 230v, minus 6% to plus 10%which equates to 216 - 253v Equipment certified to G98 for grid-co...

2 years ago
Forum
Energy Storage
Reply
RE: Mitsubishi ASHP - Circulating pump noise?

You shouldn't be left to ponder this.Before a heat pump gets installed there should be an energy survey conducted (often by the installer).That's how ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting Home Assistant to a Midea Heat Pump

I would go a step beyond that recommendation. The pioneering development of on-chip wear-levelling algorithms was undertaken by the Israeli firm, M-...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: A beginner's journey into DIY home energy storage - no solar!

I re-read it, and I think you're right @robl UKPN are actually allowing you a 34A maximum export to the grid. That has the potential to cause some s...

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

Thanks @rob1 - Sunsynk is the manufacturer which I expected someone to mention first. Here's one of their generic connection diagrams There's a ...

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

For someone to have succeeded in obtaining a G98 approval, then the battery will be DC-connected to the inverter the inverter will use some form ...

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

Here's my own graphical interpretation of the conditions under which the G99 Fast-track process can be used: The Electrical Networks Associati...

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

Not quite. If the inverter is an off-grid type then it only requires CE safety-level certification.G98 is only for devices that can export. These ...

2 years ago
Forum
Energy Storage
Reply
RE: Say hello and introduce yourself

That was an interesting conversation @redbuzzard Whilst we still here on the general 'Hello' topic, let me make three points: 1: Conservation area...

2 years ago
Forum
Introductions, Forum Rules & Updates
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