The Climate Change Solution At Hand, Part 2
We Already Have A Solution To Climate Change, And It Doesn't Rely On The Government
Paul Mainwood, December 1, 2016 (Quora via Forbes)
“…The learning curve cutting solar costs] has been named Swanson’s Law and] with every doubling of solar installation, we get a price reduction per watt of approximately 20%...[V]olumes are doubling: every 2.2 years, give or take…A 20% cost-learning factor, with 2.2 year doubling time has such a powerful effect on prices that it’s hard for humans to grasp. If it continues, then by 2030, solar PV will be around a third of the cost it is today. There will be nothing to compete with solar PV in almost any country in the world…[and] PV solar even at its current efficiency levels is easily capable of supplying the world’s long-term energy demands (best-guess, around 30TW) and can do so using less than 1% of the land area we have available…[Short-term energy storage can come from, including compressed air, flow batteries, pumped hydro, and even esoteric technologies like super-capacitors. But the most likely storage option in the near term is good old lithium-based batteries…When you have a massive surplus of PV power (summer), you run electrolyzers to produce hydrogen from water…[The Sabatier reaction] combines hydrogen with carbon dioxide to make natural gas…[which we already store cost-effectively]…” click here for more
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