The Spending Review of 20 October 2010 announced that FITs will be reviewed in 2012, unless higher than expected deployment requires an early review. The Government has identified scope to cut FIT costs by 10 per cent, to be achieved as part of its next review. (source: DECC)
2012 review, changes will be made to the tariff that cut it by £40m, or 10%, in 2014 and 2015. Those changes won't be announced until 2012, but could take the form of both a 'trigger point' where rates paid fall automatically if a certain number of solar panels and other forms of 'microgeneration' are installed, and a potential cut in rates paid to one or more of the four technologies covered by the scheme.
Second, the government is now saying it reserves the right to bring forward that 2012 review if there's a rush of people and companies installing microgeneration between now and then (Source: The Guardian online)