European energy markets are in need of more liquidity to deal with the increasing risk of trading volatile commodities and continue operating properly, according to a panel of experts that discussed the continent’s energy crisis last week.

More coordinated action among regulators in disparate European Union member states is necessary, said Cornelia Kawann, head of division market surveillance at Switzerland’s electricity sector regulator ElCom, during a discussion at Energy Trading Week in London.

She said the “biggest challenge” facing the market is how to inject more liquidity to help with the massive costs of commodities and rising margin calls facing the trading community.

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