As had been previously set out, January 1st 2016 was to be the date in which the new Solar FiT regime would come into force. The new feed-in tariff rates have been published by the energy regulator Ofgem and once the new regime begins, the rate for a standard installation up to 4kW in size will be 12.03p/kWh.
A DECC spokesman confirmed to Solar Power Portal that these changes would require 40 parliamentary days. Parliament is scheduled to adjourn for Christmas between 17 December and 5 January 2016, and later between 11 February and 22 February 2016; thus the earliest date we can expect the new regime to come into force now is February 25th 2016.
Almost two months later than the initial start date. That would be the earliest date possible unless they go back on the 40 parliamentary days proposition. Realistically, it is looking to be March 2016 that we will see the new regime come into effect.