"Tim Streater" wrote in message
.. .
In article , Chris Hogg
wrote:

On Wed, 11 Sep 2019 08:57:01 +0100, Tim Lamb
wrote:

In message , Steve Walker
writes
Not necessarily.

https://www.telegraph.co.uk/news/ear...0996273/Most-s
olar-panels-are-facing-the-wrong-direction-say-scientists.html

My known mathematical limitations or Telegraph?

Average production 3700kWhr/yr at 14.38p/kWh = £785?

But from the householder's POV, e.g. Harry, they should be oriented S
to get the maximum sunshine/electricity. AIUI the proposal that they
should be E or W is to spread their output through the day for the
benefit of the grid: one house has them E, the neighbour has them W
etc.

Again highlighting what a dead loss solar is, at least here. To use it
effectively you have to reduce its already poor output, even more.

The problem is that Solar produces *too much energy* under opitimum conditions
which then ties up capital in battery capacity. Short of installing rorating panels
it makes sense not to invest capital in panels which produce energy which exceeds
immediate demand but in less efficent panels which produce energy which
doesn't exceed demand.

This is obviously a simplification as solar is used in combination with other
sources but the basic principle should be fairly easy to understand.


michael adams

....