Last seen: Sep 14, 2025
I've just addressed this issue here in the topic DIY solar upgrade. I've spoken with the senior NGED engineer who issues their operational specifica...
Yes, the meter is installed by your Energy Supplier, for which they have to meet Ofgem targets, but also benefit from a subsidy. Here's a diagram sh...
I have attempted to address the subject of phase-imbalance by using analogies rather than referencing some of the excellent academic papers on the sub...
I wonder if this diagram provides an idea of what happens when the demands on a substation are unbalanced across the 3 phases: I'm starting with the...
Here's the classic 3-phase diagram of voltage against time, which will make better sense of Derek's explanations. I've just drawn this from scra...
... which it doesn't, because the Neutral is rarely fused. Instead, the Neutral wire gets hot, which eventually creates thermal breakdown of the ins...
Yes... and most of that will be down to ignorance. When I see an outage pop up on the NGED Regional alert page, I tend to check where it actually is...
And you're very unlikely to! There are 230,000 ground-mounted local substation transformers and a further 320,000 pole-mounted. Only a few hundred...
To underline those comments from @derek-m 19kW equates to 80A, which is the size of Service Fuse being deployed by DNOs when they get called to site f...
I think both @david999 and @bretix are missing something which I've found an essential part of my route to understanding how this green technology pro...
Yes, Canadian Solar is ok @david999 How do you feel about the short-circuit current of those panels being slightly greater than the 13.5A maximum ra...
@ bretix This is type of fuse-holder which attempts to double-up as a contact breaker. You pull the top handle towards you and the fuses get pulled...
Latest Posts
-
RE: Heat Pump Damage on install - useable or dealbreaker?
They have already been dishonest by not telling you abo...
By GrahamF , 1 hour ago
-
Testing new controls/monitoring for Midea Clone ASHP
Hi all, I thought it might be of interest to others i...
By benson , 2 hours ago
-
-
RE: Electricity price predictions
@diverted-energy sounds like good tariff for you. Octop...
By JulianC , 3 hours ago
-
RE: Who’s Caved and Switched the Heating On Already?
In the last week, the external temperature in south Man...
By GrahamF , 5 hours ago
-
Ok. Two schools of thought. The first is to run the ...
By JamesPa , 5 hours ago
-
@drei Willing as I am to help, I don't think I'm yet ...
By JamesPa , 6 hours ago
-
RE: Is Your Broadband Router the Weak Link in Your High-Tech Home?
I hear you on the locality issue @transparent, and I ag...
By Scalextrix , 8 hours ago
-
Selling 5 year old ASHP & Gas Combi Boiler - £590
Selling a 5-year-old Daikin Altherma Hybrid Air Source ...
By Paul G , 9 hours ago
-
RE: Midea ASHP – how to set weather compensation
@pash44pump Referring to the problem of rooms with diff...
By Tasos , 10 hours ago
-
RE: Help me keep the faith with my air source heat pump installation
Er true, it should have read l/hr!
By JamesPa , 11 hours ago
-
@damon thanks. I will do as you suggest. Hopefully I wi...
By bontwoody , 1 day ago
-
RE: Is a Valliant Inline 6kW heater a BUS buster?
Much of that is true in principle, but its not likely t...
By JamesPa , 2 days ago
-
RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
@dgclimatecontrol I attach the responses from 2 potenti...
By pash44pump , 2 days ago
-
RE: Buffers, hot water and cooling
@dgclimatecontrol thanks, that's helpful.
By JamesPa , 3 days ago
-
RE: Failing heat pump system - seeking thoughts on a rebuild
I realise im overdue an update on my situation. first...
By Cleardene-ashp , 3 days ago
-
RE: Replacing Worcester oil boiler with an ASHP
@toodles thanks. I was told by the engineer that this h...
By JulianC , 3 days ago
-
RE: What crazy nonsense are inverter limits and why are they imposed?
A week later, I'm finally picking up this comment... ...
By Transparent , 3 days ago
-
RE: COP is not the only measure of efficiency
We keep all our TRVs fully open using the whole house a...
By Old_Scientist , 4 days ago
