Please be advised that due to essential maintenance works, users may experience a brief interruption to service on the Energy Flow Data pages during the following dates and times:

• Monday 19/10/09 at 11:10 and 14:10.
• Tuesday 20/09/09 at 10:10, 12:10 & 14:10.
  

We apologise for any inconvenience this may cause to our customers, and we will keep you informed of any changes to the above programme.