DAEG release (V 1.0.4)

In this version

• Changes to chart display:
  • If there is no forecast generation data for a group during some intervals then a light red pane appears behind those intervals
  • Vertical dashed line on chart to mark midnight
  • Price axis becomes logarithmic if all prices are greater than $1 and (maxPrice-minPrice)>$990
  • Generation axis has a minimum range of 100MW
• Add warning to page for browsers that don't support HTML5 (e.g. IE8)