Search found 460 matches

by sharpener
Wed May 28, 2025 10:28 pm
Forum: Energy storage, batteries, energy tariffs
Topic: Agile
Replies: 31
Views: 2947

Re: Agile

That means they have the technology to discriminate between electric going into your car and used for other purposes. Well yes, surely it's a condition of the EV tariff that you give them remote access to your charging station. Ditto the HP tariff from Ovo. If they have that and 30min readings from...
by sharpener
Mon May 26, 2025 9:59 am
Forum: Energy storage, batteries, energy tariffs
Topic: A project crying out to be done!
Replies: 26
Views: 2218

Re: A project crying out to be done!

A little more information on your WT would be useful, is that 240V DC or AC, if AC single phase or 3 phase, do you already have an inverter for use with it - if so details please. Do you have an export meter or smart meter that can ued for export (I believe you will need an export meter number mpan...
by sharpener
Mon Apr 28, 2025 1:50 pm
Forum: Energy storage, batteries, energy tariffs
Topic: Cheaper Electric
Replies: 21
Views: 2397

Re: Cheaper Electric

Surely every government should aim for the cheapest possible, secure form of energy. Oxymoron if there ever was one. You can have a cheap one like the USA and the failures when stressed. You can have the more expensive UK one which is one of the most reliable Or the many shades of grey in between. ...
by sharpener
Wed Mar 26, 2025 9:50 am
Forum: Photovoltaic
Topic: Grounding.
Replies: 3
Views: 652

Re: Grounding.

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...
by sharpener
Wed Mar 19, 2025 3:04 pm
Forum: Transport
Topic: BEVs to now pay road tax, and it's back-datable
Replies: 34
Views: 16283

Re: BEVs to now pay road tax, and it's back-datable

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...
by sharpener
Thu Mar 13, 2025 3:45 pm
Forum: Photovoltaic
Topic: Solar PV advice
Replies: 309
Views: 66271

Re: Solar PV advice

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...
by sharpener
Thu Mar 13, 2025 2:46 pm
Forum: Photovoltaic
Topic: Solar PV advice
Replies: 309
Views: 66271

Re: Solar PV advice

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...
by sharpener
Thu Mar 13, 2025 2:39 pm
Forum: Energy storage, batteries, energy tariffs
Topic: Smart meter tariff updates.
Replies: 13
Views: 27907

Re: Smart meter tariff updates.

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...
by sharpener
Mon Mar 10, 2025 2:33 pm
Forum: Off Topic
Topic: Positioning of speakers in echo-ey room
Replies: 15
Views: 54252

Re: Positioning of speakers in echo-ey room

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...
by sharpener
Fri Feb 28, 2025 12:50 pm
Forum: Spaceheating
Topic: UFH to be connected to ASHP ?
Replies: 41
Views: 14825

Re: UFH to be connected to ASHP ?

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...