In message , at 14:04:46 on Sat, 30 May
2009, David A Stocks remarked:

"Roland Perry" wrote in message
...

But if the chargers are on separate circuits that only work at dead
of night, it's another case of "no Boost available", and you are in
effect rationing people to one-charge-per-day.

I was only describing the current service - there's a good description
of it he

http://www.energynetworks.org/rts/index.asp

That seems to describe the technology - do you have any pointers to
suppliers/tariffs?

The basic principle is that the consumer sacrifices some control of
their demand to the supplier. For a car charging application it makes
sense to do the remote switching at the charging point/socket or in the
charging circuit of the car/battery itself. A more sophisticated
solution might use wireless networking or GPRS to provide 2-way
communication. It just requires a bit of thought ...

A bit like moving block signalling, then
--
Roland Perry