ASHP Seasonal performance factor

[jason121]

Any comments about this statement, does this mean all the high temperature heat pumps or heat pumps running on existing radiators wont be getting the RHI payments.



In addition, the Renewable
Energy Directive sets out a minimum efficiency that heat pumps are required to
meet in order to be counted as renewable. In order to do this, the Directive
uses an equation called the Turmes formula, which is based on the pan-EU
average efficiency of electricity generation. Heat pumps which do not meet this
efficiency level will not be counted towards the UK’s renewables target.
Currently, the minimum Seasonal Performance Factor (SPF) required by the EU is
set at 2.5. The RHI is designed to only support installations that qualify as
renewable under this Directive so this is
the minimum level of performance we are prepared to support.




MCS (or equivalent scheme)
accreditation of technologies, which we propose to be a requirement for the
RHI, dictates that heat pumps need to meet a Coefficient Of Performance (COP)
of 3.2 for air source products and 3.5 for ground source products. We would
expect heat pump systems using technology of these MCS efficiency specifications,
which are designed, installed and used appropriately, to meet an SPF
requirement of 2.5 but we would like to see better and improving performance
over time.

 

[Earthstore]

The way I read that is the COP of the heat pump, I would guess that the manufacturer has to state what the COP is tested under certain conditions, and give an annual performance.
A little like the STC of a solar panel.

In the real world though it depends when and how they are installed, in Scotland the real COP of an ASHP would be much lower than one installed on the south coast.

Yet another directive that is as clear as mud...

 

[jason121]

Don't know how true this is, but if the heat pumps are designed on 53 degrees plus for existing radiators or have installed high temperature heat pumps , they could be in for a shock. The RHI payments wont be given on these systems. Time will tell.