The Department of Energy and Climate Change has indicated that funding for the non-domestic RHI will be reduced as will the notice period required to suspend the scheme in the event that the budget is exceeded.
HPA say that this will have little effect other than to reduce consumer confidence in the reliability of the incentive.
A HPA spokesman said: “The Heat Pump Association are seriously concerned about the message this sends particularly as it is only just a few weeks after a previous interim cost control announcement.
“Finding a positive angle, these measures are to ensure that funding for 2013/14 is protected which presumably means that DECC are at last expecting a much more significant overall uptake when additional renewable technologies such as air source heat pumps are added to the scheme later in 2013.”