Uk Solar Power Experiment

Happy New Year.
Solar Power - the way forward?
NATS (in Hampshire) have a installed some experimental solar panels.
On the 26th of July at 13:00 the panels were running at a real world maximum output of only 7Kwatts.
The payback time is just tooooo long.
In the UK the panels just don't output sufficient electricity and are just too expensive to be considered a viable solution.......unfortunately.
Perhaps they will obey Moore's law and double their efficiency every 2 years whilst halving their price.