lee wrote on Nov 9
th, 2021 at 7:33pm:
But it is 350,000MWh. Providing of course that it works as planned. They don't mention anything about evaporation. They just say no more water will be needed.
350 GWh? That's certainly more impressive than the 2GW I previously found on google. But another google search explains the discrepancy:
"
Snowy 2.0 will provide an additional 2,000 megawatts of dispatchable, on-demand generating capacity and approximately 350,000 megawatt hours of large-scale storage to the National Electricity Market. To provide context, this is enough energy storage to power three million homes over the course of a week."
The difference in the two figures is between generating capacity (in GW) and storage (in GWh). Thanks for highlighting the difference. That means Oz would only need a dozen or so Snowy equivalents (with sufficient solar/wind as supply) to go 100% renewable. Certainly do-able.
Quote:How about replacing the panels and wind turbines? They are part of the infrastructure.
All paid for by the government which should own the electricity generation system, by spending the money into existence (as already explained).
Quote:Nope. How many cubic kilometres of solar panels to replace 350Mw power station? How many cubic kilometres of wind turbine to replace same?
Surprisingly small area of land required. Haven't looked for the figures for OZ yet, but I recall a google search I made for the US: an area of
c.140 square miles of PVs in a US desert is sufficient to power the entire US economy (15 times the size of the Oz economy).
Quote: "Renewable energy sources can take up to 1000 times more space than fossil fuels"
Ah...yes but who cares, if that 140 square miles of desert is sufficient (in the US)?
Quote:"They found that power densities can vary by as much as 1000 times, with biomass the lowest (at 0.8 W/m2) and natural gas the highest (at 1000 W/m2). Solar and wind power needs around 40-50 times more space than coal and 90-100 times more space than gas."
Like I said, so what, when we can utilize a small percentage of otherwise useless desert and run the economy on free electricity. Which is why - climate emergency or not - we should go green, for a healthier, cleaner atmosphere... vital in Asia where the air smells like exhaust fumes and looks like smog.
Quote:Addressed above. Just think, by utilizing a fraction of the world's deserts, the globe can run on free electricity, managed by a UN agency, even before we master nuclear fusion.
Quote:No I don't deny climate. I don't even deny climate changes. But perhaps you can direct me to a site that shows our climate is suffering a catastrophic change?
What I can point out is that people - including global insurance companies - are becoming increasingly concerned by an apparent increase in climate related catastrophes all around the world. After having experienced record temps.(49C) and fires in Canada last year, record floods in Europe and Asia, people are not so inclined to dismiss scientific projections re sea-level rise etc
Quote:Do you have the paper that says that? Not Chuckles or Greta.
The point is: we can do what we must do, if the AGW climate emergency is real, meaning we can no longer burn fossil fuels. Finance is not the issue;
resource mobilization is (to build the necessary green infrastructure NOW, not in 30 years time). "Planning, not pricing" .
btw if you want to learn about the difference between resources and money, read Stephanie Kelton's best seller 'The Deficit Myth'.
Quote: Of course engineers are capable of designing cleaning systems to deal with that problem.
Quote:So people won't increase power consumption over the next 30 years? That is so comforting. Not. An increase i population, people in poorer countries wanting better or at least some electricity.
They will increase power consumption; and China, which intends to be
as wealthy as the US on a per capita basis by mid century, has the plans to achieve net zero emissions by then. And if China, then so the rest of the world.
Quote:"It is not an exaggeration to say energy poverty is one of our continent’s most pressing problems: Only 56% of Africa’s population has access to electricity today, and in many places that power is still inadequate and unreliable at best. We address this topic in our recently released report, The State of African Energy 2022.
Africa has c. the same population as China. The same solutions for
green resource mobilization can apply, in order to power the continent with renewables, AND eliminate poverty.
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