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Last seen: May 27, 2026
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 ...
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...
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 ...
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...
Thermal gain from Windows is a common issue. But Home Assistant can also run on a Raspberry Pi, which takes less power of course. 😉
Yes. The point at which the DNO would normally require the home-owner to accept a 3ph supply is when the dwelling is operating above 60A in a steady-s...
That's poor science. Transformers (and underground cables) are often under-specified wrt to present-day demand loadings. They can continue to oper...
You're right @bash - every G99 application gets assessed on the substation data available to the DNO. There will be differing results, even for hous...
Hmm... whereas I understand the physics behind grid topology and operation, and I know it's being threatened by political policies 😯 We c...
Erm... how can @jancold post new links? It's you @batpred , who is doing the research into cheaper storage batteries from online sellers. Isn't it...
Aagh! Guidance from the Electrical Networks Association (ENA) is that domestic export should be limited to 16A per phase by default. So it's surpr...
Profitable perhaps...... but not grid friendly unless you're on a 3-phase supply. What export limit has your DNO allowed you to have? Have a look ...
Latest Posts
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RE: Electricity price predictions
Not sure that is the case. The current government is v...
By JamesPa , 15 minutes ago
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RE: Heat Pump Operation in Summer - Valliant 7kW
I think summer here was last Thursday. We're b...
By upnorthandpersonal , 1 hour ago
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RE: Anyone concerned about GivEnergy?
BTW anyone signing up to the Axle deal can get an immed...
By KevH , 2 hours ago
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Its very sad news, they had a good reputation and I hop...
By ASHP-BOBBA , 3 hours ago
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Hi, David I'm far from an expert, so take my comments...
By Majordennisbloodnok , 7 hours ago
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RE: How many people are happy with their ASHP and do you believe them?
I've always expected price rises over time; it's in the...
By Majordennisbloodnok , 9 hours ago
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RE: Solar Produced vs Home Consumed
We can discuss this further with you. Before you coul...
By Transparent , 10 hours ago
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
Of course, British companies asked for the benefit of t...
By Batpred , 23 hours ago
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RE: Heat Pump Overpromising – What Were You Actually Told Before You Bought?
@editor Sorry Mars, I didn’t see a notification about ...
By Toodles , 1 day ago
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RE: Hitachi Heat Pump being replaced with Vaillant
Yes to be configured as a volumiser. The pump is to be...
By trebor12345 , 1 day ago
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Yes, you will need to notify them even if the inverter ...
By Old_Scientist , 1 day ago
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RE: Heat Pump Manufacturers Recommending Buffer Tanks
@tony-stolz, I think @jamespa has already covered the h...
By Mars , 2 days ago
