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Nuclear energy is more expensive than renewables, CSIRO report finds
(www.abc.net.au)
This is a most excellent place for technology news and articles.
It's not difficult, but it is expensive and inefficient. There are very few financially viable battery technologies on the market currently, and although incremental improvements are happening on that front, there are also roadblocks (lack of raw materials like cobalt, toxic metals, thermal runaway fire risks), we really need a big breakthrough before we'll see large adoption of batteries.