All change

You mean the panels are two deep? That's a clever trick.

In message , The Other Mike writes

As has been said, it is all about the money...

Crops up:-) in the agricultural press a bit. One issue with leasing sites for phone masts etc. is the *roll over nature* of the leases.

Yes, they swap the lower ones to the top when no one's looking

as you can tell I'd make a crap proof reader :)

Apparently there are some new ones comiong out that are semi-transparent. Intended for conservatories and growing stuff underneath. Only 12% light reduction.

The "normal" ones are between 10 and 15% efficient. When the incoming energy is free, it's less important. It does mean they have to be bigger if less efficient. But then the less efficient ones are cheaper. There are 40% efficient ones in the laboratory apparently.

The transparent ones mean that the space beneath is still illuminated so they can be used to replace glass. Conservatories, greenhouses etc.

You can have windows that generate electricity.

Very odd people the Germans. In less than a century they've produced hordes of two entirely different types of nutters.

Bill

No. exactly the same type of nutter.