"The Natural Philosopher" wrote in message
...
On 23/09/13 07:52, harryagain wrote:
"Brian Gaff" wrote in message
...
Of course a lot of these devices waste power when not a lot is being
generated, and over time I'd suspect this adds up to quite a high
amount.
5v is nothing, in any day the mains goes up and down far more than that
amount.
Brian

The inverters in use these days are around 95% efficient. (No
transformer)
I think mine uses around 3w on standby.

Harry, the idiot who thnks inverters dont have any transformers.


Hey ****fer brains.
All small parallel operation PV sytems have transformerless inverters these
days.
http://en.wikipedia.org/wiki/Grid-ti...ter#Technology