In article ,
Tony Bryer writes:

The new Part L Building Regulations and SAP-2005 explicitly cover them too
- I'm still trying to get my head round the equations.

The practical bit of this I don't understand is that someone I know who
worked in power generation said a long time ago about needing to get power
station generators up to exactly the right speed before connecting them
into the grid as if the frequencies weren't matched 'bad things' happened
- I don't remember the details. So is this handled if you are generating
your own electricity via Microgen or PV panel and wanting to export it?

The associated electronics for the generator will be keeping it
in sync with the mains. Actually, this is such a key part of the
design that a number of these generators cannot operate in the
absence of a working mains supply (so they are not suitable
as a backup generator). If you want to use the boiler for this
purpose, do make sure it is capable (and you need extra protection
to prevent backfeeding a dead supply network).

--
Andrew Gabriel