Recent content by James Page

Standards are not compulsory (see 511.2, and any general inf on standards law) I would see what evidence of safety your cable manufacurer has

yes it's even easier on industrial sites as they are not 'consumers' - "The maximum resale price rule does not apply to gas or electricity resold for use at industrial and commercial premises, e.g. shops and offices."

the guardian article is just about selling export to elec suppliers. But see my later post below where Ofgem allow in site generation combined with supply.

I found this in an Ofgem guide on 'On-site supply' - "Allows the supply of self-generated electricity (either exclusively or in combination with power procured from a licensed supplier) to consumers that are on the same site. Ofgem has power to set the maximum prices charged under these...

I did talk to ofgem about this question about 8 years ago and they didn't seem to have a problem with it. It's an excellent way to make solar more viable. If you charge the tennant less than they would normally they will be happy and it won't be profit for a long while, when you can revisit.

...using VOs to solve this isn't normally allowed anyway, as the inverter no longer knows the grid voltage (which will then be pushed even higher.) There are othe possible causes to check though - cable sizing (is it only an issue when generating?) and I've seen inverters 'misreading' voltage

Of course they'd need to be on the same phase, and you'd need to measure power going the other way too (from flat to landlord.) Talk to the DNO/supplier too as I've wondered in the past about the regulations here.... More easy would be to move the flat/s on to the landlord supply. - this is...

I think they have the Euro and MPPT efficiencies reversed - MPPT e. can be very good, but Euro has to be less. I would drop them an email

Ok not mandatory but usually we need to comply if we want the business, as the customer often requires it. Especially commercial customers. And re the cop MCS states it's a requirement in their PV standard. You can find it on the mcs website. So the effect is much same . Hence my other comments...

That is the key point. Neither are always mandatory, but both are in certain circumstances. eg the BS is mandatory for domestic if you want to use Part P, or if a business customer wants it (often the case.) The CoP is mandatory if you are MCS, ie all your installs have to be MCS. Many elec...

I went for metal clips - wasn't sure if plastic ones would last - clips

Although no longer directly involved with the IET myself I'd like to spread the word that a draft update of the PV Code of Practice has been published, ostensibly to be brought in line with this year's changes to BS7671. That said I see no reason why they need to be identical - after all the CoP...

there's a strong legal case to be a made I believe that they should be free, now that they are more often a requirement than they were. In fact there is a court case running in Europe on similar issue with Toy standards

Consultation has been extended a few days