For historical reasons, Japan has two frequency domains and there is little room for surplus electricity to be delivered across domains. The impact of such supply constraints will be serious in the short term. But at the same time, we should remember that the impact of the disaster can be mitigated by human wisdom and determination.
As part of its Code review, the GFXC has a workstream looking at this aspect of the market, the roles played by venue providers and prime brokers, and whether the 3/4  BIS central bankers' speeches  issues that can arise with this form of trading are adequately addressed in the Code’s principles.