What is nemhandel?

As an AI language model, I do not have access to current or updated information that has not been made publicly available. However, Nemhandel was a Danish online marketplace established in 2006 for energy trading where electricity suppliers and producers could buy and sell electricity in an automated and transparent way. It aimed to create a more efficient energy market and reduce costs for consumers. In 2018, it was renamed as Energinet Market and expanded to include gas trading.