Hi Tina
If you are awarded Limited Capability for Work then the NE ESA is only payable for a year, if you receive Limited Capability for Work Related Activity then it is payable for as long as you meet the criteria, you would also receive an additional premium, (LCWRA) £341.92 pm which is not dependant on you receiving PIP.
There are no SD, ED premiums under UC, although you may qualify for the LCWRA element providing you meet the criteria, in your case Tina, you would meet the criteria.
Our UC and ESA claim guide explains the criteria that you will need to meet.
www.benefitsandwork.co.uk/help-for-claimants/esa1 Gary