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Joined: Jan 20, 2022
Last seen: May 6, 2026
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Topics: 16 / Replies: 3158
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RE: Recommended home battery inverters + regulatory matters - help requested

@judith please confirm that your (existing) Sunny Boy unit does not have a CT clamp for export current measurement,and that the CTs you've mentioned a...

4 months ago
Forum
Energy Storage
Reply
RE: Recommended home battery inverters + regulatory matters - help requested

Yes, I concur with the Sunny Boy being treated as if it's dumb. In addition to the Solis which @batpred has mentioned, Sunsynk inverters can also us...

4 months ago
Forum
Energy Storage
Reply
RE: Recommended home battery inverters + regulatory matters - help requested

James asked: "Can anyone outline (or point me at) the main regulatory considerations (ie what triggers G98/99/100 - noting I already have a 3.68kW P...

4 months ago
Forum
Energy Storage
Reply
RE: Recommended home battery inverters + regulatory matters - help requested

Most likely, but that's not always the case. All single-phase Sunsynk inverters being sold in GB have their export set to Zero by default, for examp...

4 months ago
Forum
Energy Storage
Reply
RE: Recommended home battery inverters + regulatory matters - help requested

Yes, we're discussing regulatory issues...... stuff that's approved and agreed upon by the DNO representatives at the ENA.   But I don't k...

4 months ago
Forum
Energy Storage
Reply
RE: Recommended home battery inverters + regulatory matters - help requested

No. And I suspect this is the crunch issue. Your two inverters won't "know" about each other.They will be from different manufacturers and will op...

4 months ago
Forum
Energy Storage
Reply
RE: Recommended home battery inverters + regulatory matters - help requested

Yes, you're right about G100.The export device will be certified to both G98 and G100. If the CT is absent then no export is possible. And if it's...

4 months ago
Forum
Energy Storage
Reply
RE: Recommended home battery inverters + regulatory matters - help requested

1: The EREC G standards apply to devices which can export to the grid.If it doesn't have export capability then it isn't covered by a G-standard, and ...

4 months ago
Forum
Energy Storage
Reply
RE: Insulating a pitched roof with kingspan, has anyone done it?

Like @agentgeorge I too have a warm-roof construction. It's retrofitted onto a 1930's farmhouse for which I was extending the roof in any case.I hav...

4 months ago
Forum
Insulation
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RE: Recommended home battery inverters + regulatory matters - help requested

The issue of knowing the SoC is often misunderstood. It's clearly the case that an inverter can't assess the SoC of a storage battery without being ...

4 months ago
Forum
Energy Storage
Reply
RE: Solar Power Output – Let’s Compare Generation Figures

The answer will depend on the circumstances and by how much the steady-state demand exceeds 60A DNOs are unlikely to be heavy-handed in their approa...

4 months ago
Forum
Solar Photovoltaic (PV)
Reply
RE: Tinkerer's corner

Thermal gain from Windows is a common issue. But Home Assistant can also run on a Raspberry Pi, which takes less power of course. 😉

4 months ago
Forum
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