/select?q=electrical control OR "electrical control" OR "electric manage" OR "electric oversee" OR "power manage" OR "power oversee"&wt=json&indent=true&facet=true&facet.field=key_filetype&facet.field
37 Principles, which can be mainly separated into two main groups: principles for regulator and principles relating to market participants. The assessment grades are divided into four categories: (1