Category Archives: Solar

How much useful electricity does rooftop solar produce in southern Western Australia

The ABC have this article claiming – Rooftop solar producing more energy than WA’s biggest turbine – Curtin University sustainability professor Peter Newman said – “It’s nearly 500 megawatts and it’s growing rapidly,..” Yet when I check NemWatch for WA I can only ever find a little over ~250MW for WA small solar. Is this because about half the output is used in the homes of the owners of these rooftop solar systems?
And of course the article seems to forget that these solar systems only work in the sunny hours – they make no electricity at night while the coal fired generators chug away 24/7. I wonder to what extent the WA grid can keep on accommodating increasing solar and wind power yet remain stable. I also wonder what is the cumulative cost of all the small scale solar subsidies paid out by the various Australian Governments.

The Royal Astronomical Society – Cycles within the sun predicted to result in a Maunder Minimum like global cooling event around 2030

Prof Valentina Zharkova discusses her recent solar research. Irregular heartbeat of the Sun driven by double dynamo
Fascinating that the RAS promotes this research at a time the dominant climate change research paradigm is bleating on about global warming. Even the Fairfax media picks it up. Sun cycle’s cold facts say mini ice age on way

UK Met Office says that the activity of our sun is in decline but that any cooling will be swamped by global warming

I note the abstract of their paper – Regional climate impacts of a possible future grand solar minimum – is misleading when it starts by saying – “Any reduction in global mean near-surface temperature due to a future decline in solar activity..” Stating that any decline is in the future. Yet in the paper they clearly state the decline is happening now and is accelerating. – “The decline in solar activity has continued, to the time of writing, and is faster than any other such decline in the 9,300 years covered by the cosmogenic isotope data1.” Never trust anything written by pro-IPCC sources without checking the fine print.
Two media reports – Solar decline may mean colder UK winters – Met Office study – and – Britain faces FREEZING winters as slump in solar activity threatens ‘little Ice Age’

The Australian Academy of Science quotes “unusually weak solar activity” as one reason for the post 2001 temperature slowdown

Download the 7MB pdf report – page 10 Box 2.2 for the amazing quote saying […unusually weak solar activity] is a cooling influence. That they have the hide to include that in the face of decades of the IPCC refusing to accept the sun was affecting changes in earths temperature.

They also say [None of these influences is likely to continue over the long term.] Talk about messy statements – so solar – aerosols – volcanoes are all short term.
I like the quotes in Box 2.1 – where they pontificate about measuring “climate variables” – They say – (with careful account for changes in instrument types,
observational practices, instrument locations and urban areas)
It could be re-written along lines – with careful account for changes in instrument types, observational practices, instrument locations and taking care to include in global temperature compilations artificially warmed data from every urban area on the planet.