On 11/02/2013 15:42, Tim Streater wrote:
Could do what the Aussies are supposedly planning: use the daytime PV to
melt salt at 500-600C, use the heat stored there for nighttime leccy
generation. Of course they are not doing that on a house by house basis,
but possibly rather more efficiently in stations that generate about
300MW each (IIRC). That goes towards removing the major stumbling block
for renewables: intermittency.

Solar power makes more sense out there anyway. If your major use is
aircon on a hot, sunny day...

Andy