The Mudcat Café TM
Thread #96832   Message #1899507
Posted By: Mr Yellow
04-Dec-06 - 08:03 AM
Thread Name: BS: Wind turbine efficiency
Subject: RE: BS: Wind turbine efficiency
Under soil heat collection -

Apparently, at the depth of water supply pipes the temperature remains fairly constant at 6 deg C in the UK. Hence the depth of supply pipes - never freezes.

I would have thought summer cooling would be more efficient winter heat collection but I have seen TV programmes where they install the garden pipes.

Mind you sub-soil windage is not that great...............