On 01/08/18 11:08, Dave Liquorice wrote:

Of course any demand management is more to do with clipping the peak
off the early evening winter peak deamnd. By knocking 500 MW of that
you can "save" a whole power station being required but sit idle for
the vast majority of the year.

500 MW, how many fridges is that?

Lets assume that when the compressor is running a fridge takes 100W.
500,000,000 / 100 = 5,000,000 fridges, hum a lot...

BUT a fridge doesn't run it's compressor all the time. Lets assume a
20% duty cycle. That means to save 100 W on average you need to
control 5 fridges. 5,000,000 * 5 = 25 million fridges, thats more
than the number of households in the country...

It ain't going to happen any time soon.


Think a fridge compressors takes more than that. 100-200W is AVERAGE and
up to 1Kw AVERAGE for big fridges and freezers.

So you can get there with only 5 million fridges




--
€œBut what a weak barrier is truth when it stands in the way of an
hypothesis!€�

Mary Wollstonecraft