Technical data

11
Tariffs
When discussing the RHI scheme with your customers, the
first question you’ll probably be asked is “how much will I
get and for how long?”
Tariffs have been calculated by The Department of Energy
and Climate Change (DECC) and will change annually in-line
with the previous year’s Retail Price Index.
All payments are made directly to the homeowner
retrospectively every quarter over a period of seven years.
The tariffs are per kilowatt hour of renewable energy
produced by each of the following technologies:
Heat pumps and solar tariffs can be jointly claimed
providing they are in the same property.
How will the payments
be calculated?
Air and ground source heat pumps
The amount of renewable energy qualifying for payment
is based on a deemed estimate of the heat demand from
the property’s Energy Performance Certificate (EPC). This
is combined with an estimate of a heat pump’s efficiency
minus the energy required to run it.
Solar thermal
The amount of renewable energy qualifying for payment
is based on a deemed estimate of the solar thermal
performance completed as part of a Microgeneration
Certification Scheme (MCS) installation.
Metering and monitoring incentive
Heat pump installations should be meter-ready wherever
possible. To help improve the performance of renewable
heating systems, there is an additional incentive for
selected properties to have metering and monitoring service
packages installed. For heat pumps this is £230 a year.
Space heating
Applications for space heating systems where there is
already a back-up fossil-fuelled heating system in place, for
example with a gas-fired condensing boiler, are required to
install metering systems on which their RHI payments will
be based. This also includes hybrid systems.
Renewable product Price per kWh
Air Source Heat Pumps 7.3p per kWh
LECP Ground Source Heat Pumps 18.8p per kWh
Solar thermal 19.2p per kWh
What criteria are required to
apply for the scheme?
Training
All installations must be carried out by an MCS approved
installer and meet the relevant standards for each
technology. Worcester runs MCS, Green Deal and individual
renewables product courses at each of its training
academies. For further information visit
www.worcester-bosch.co.uk/training or call 0330 123 0166.
Green Deal Assessment (GDA)
All applicants for the scheme, including those who have had
renewable technologies installed since 15th July 2009, will
need to have a Green Deal assessment carried out on their
property to determine which renewable technologies are
the most cost-effective. Where recommended by the GDA,
properties must meet the energy efficiency requirements of
a minimum of 250mm of loft insulation together with cavity
wall insulation.
Energy Performance Certificates (EPC)
In situations where the loft and cavity wall insulation have
not been installed, the property’s EPC will need to be
updated when the work has been carried out. In properties
where installation is not feasible, an EPC will also be
required as proof.
The only exception is for self-builders whose properties
will meet Building Regulation requirements for energy
efficiency and will therefore already qualify for the scheme.
They will, however, require an EPC to enable Ofgem to
calculate payments.
Please note: Renewable Heat Premium Payments or other public funds previously claimed
for a system will be deducted from RHI payments.
Payments for energy from renewable products
to householders will be made until 2021.