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I was planning on grounding whatever i did as standard. How many of you who have added arrays have done so? How many havent bothered, and why?! Neither of the contractors who fitted my two arrays in 2011 and 2023 mentioned the topic. I assumed (!) they knew what they were doing. The first panels ar...

I know. But the OCD side of me wants to be sure. Not difficult to do and, hopefully, prevents any post date challenge. Still works, thanks for the tip. I would have thought a printout of the confirmation email is sufficient protection. Need to use the number off your V5, the renewal notice (V11Z) n...

That I do not understand al all. Is 1000 hours meant to be a rough average of "aligned and angled for full power"? For a fixed array? For a tracking array, no obstruction (in the open in flat area, no nearby trees or buildings) more like 4000 hours with that then needing adjustment for th...

So if everything is perfect I should be able to generate the full 2.58kw (never going to be perfect in NW England though!)? Tagging on, yes and so as a rough guide you could ordinarily expect 1000hrs hence 2.58 MWh per year in the S of England, perhaps a bit less where you are, for fine detail PVGI...

They use a web site www.mywatts.co.uk to show what the meter is doing. It only started showing my data on Tuesday but I've noticed when you look at the cost data for a day it's showing my cost wrong. Did they sign you up for this or did you register yourself? I have looked at the website but can se...

Yes, all good suggestions, thankyou - I'll get a couple of tables or chairs in there and have a play. Any particular type of sound best for experimenting speaker position with? Bassy? Clear, undistorted (like classical), or speech? You do not say what the overall goal is or what the audience will b...

Sounds good. The slab takes a lot of energy to heat it up, but then it takes a long time to cool down - this is going to provide a challenge for optimisation but I'll worry about that when the time comes. With such a long time constant, as long as/to the extent that the loss is only 1/3 of the capab...

OP reporting back. ... The heat pump will be connected to the existing thermal store where it will heat the stored water which in turn heats the DHW via very large coil. So you are planning to keep the whole TS at 45C (or more depending on yr view of Legionnaires' disease risk)? Presumably this wil...

But that is one of the rules to be relaxed for detached houses. Yes we keep hearing this rule and that rule are going to be relaxed but AIUI they have not yet done this and there is no timetable for doing it. So the extracts from the Planning Portal are the rules in force right now, and hence if yo...

48V is only a limitation if you cannot co-locate the batteries and battery inverter . Everything else - solar panels, solar inverter, incoming mains, AC supply to house is at a higher voltage so voltage drops and heavy currents are not a problem, you can have tens or even 100s of metres separating i...