[merloen]

That's not arbitrage, just basic investment. Arbitrage is buying X at place A and selling X at place B.

Energy arbitrage means buying energy where it's low, and selling where it's high. The latter is missing here.

[Pharaoh2]

Yep, that was the whole argument of the article... I do really agree with the article but at least we can agree on what the article is claiming...