Although much lauded as the future “clean” power generation, wind and solar present serious problems in their unavoidable variation in performance on every time scale.
The extent of that constant variation is hidden neatly (and deeper and deeper) as time-series data are summated into weekly/monthly/annual power generation reports.
Hidden or not, that variation is a serious problem and a major source of inflated costs as more and more “renewables” are added to the grid.
The reality of that variation is glaringly obvious in the base data recorded in the NEM web-site. That source provides a detailed list of every power generation facility connected to the grid together with maps showing precise location and hour by hour performance details over the last few operating days for each and every facility.
The data for solar, wind and battery power is summarised in the link below (click the image to read the full PDF document) and appears to show admirably, the weakness of constant and largely unpredictable variability in both solar and wind power generation across all locations within Australia.
Richard Blayden – Founding Member of the Saltbush Club, Engineer, BSc Hons – Engineering/Thermodynamics (UK) and avid blogger in on-line climate discussion forums.
“I saw them now with a disgust that they had never roused in me before. Horrible alien things which some of us had somehow created, and which the rest of us, in our careless greed, had cultured all over the world. One could not even blame nature for them.” – Bill Masen, in “The Day of the Triffids”
1. Offshore wind is not cost-effective, and the forecasts of rapidly declining costs through increasing economies of scale are unrealistic.
2. Absent continued subsidies—such as state mandates for offshore generation and renewable energy credits, which force electric utilities to sign long-term agreements with offshore wind developers at above-market prices—it is unlikely that any offshore wind facilities will be developed.
3. These subsidies, along with the need for additional transmission infrastructure and backup sources of electricity, will increase the cost of electricity for consumers and reduce economic growth. The actual costs of offshore wind projects borne by electric ratepayers and taxpayers are likely to be greater than advertised. Continue reading “The Dismal Economics for Offshore Wind”
The proponents of Climate Change insist that we are facing an imminent existential threat to our very existence. To prevent this catastrophe they assert that we must make immediate, impactful changes — particularly regarding our energy policies. The primary solution advocated by the major Climate Change advocates (e.g. the IPCC and the scientists comprising the so-called 97% consensus) is industrial wind energy. Continue reading “Taking the Wind Out of Climate Change”
“Have you ever heard of unobtainium? It’s the magic energy mineral found on the planet Pandora in the movie Avatar. It’s a fantasy in a science fiction script. But environmentalists think they have found it here on earth in the form of wind and solar power.”
London, 6 October: Ignoring clear evidence that the underlying economics of renewables are disastrous, the Prime Minister has today committed the UK to a further expansion of offshore wind power by 2030, with frightening implications for electricity prices, which would have to treble to pay the real costs.
Blade waste, other factors prove wind is no more green than solar
By Duggan Flanakin
Environmentalists and wind energy opportunists (entrepreneurs who take advantage of overly generous tax credits and multiple other subsidies) want you to believe wind energy is as pure “green” as newly driven snow is white, and as cheap as Taco Bell.
Solar energy is very dilute, so solar collectors usually cover huge areas of flat arable land, stealing farmland, starving wild herbs and grasses of sunlight and creating “Solar Deserts”.
Wind turbines steal energy from winds which often bring moisture from the ocean. These walls of turbines then create rain shadows, producing more rain near the turbines and more droughts down-wind. Turbines work best along ridge lines where eagles also seek thermals, so birds and bats get chopped up by these whirling scythes. They also annoy neighbours with noise and increase bushfire risk. Continue reading “Not So Green”