Feed-in tariffs (FiTs) make the business case for installing
renewable energy for electricity generation more attractive. They
were introduced to encourage the use of small scale electricity
generation from renewables to help meet the Government's renewable
energy generation targets.
How they work
FiTs provide three financial benefits: if you generate your own
renewable electricity you are paid for the electricity you produce
and the excess exported to the grid, you also don't have to buy as
much electricity from a supplier.
A generation tariff pays for every kWh of electricity generated.
The level of the tariff depends on the type and size of technology
used, and when it was installed. You are "locked into" the tariff
level that is current when the equipment is installed for the life
of the installation or the life of the tariff (10 - 25
An export tariff pays for any electricity exported to the grid.
You can either accept a flat rate or try to negotiate a better rate
with your electricity supplier.
What is eligible?
- anaerobic digestion (AD) for biogas used in electricity
- solar electric photovoltaic (PV)
- small-scale gas-powered combined heat and power (m-CHP).
Who is eligible for FiTs?
Any organisation or community is eligible to apply for a FiT for
systems with a capacity up to 5 MW.
Summary of generation tariffs
The tariffs are set at different levels for different
technologies, according to costs and how much electricity is
expected to be generated. The tariffs are index-linked to inflation
- the Retail Price Index (RPI). Tariffs were set to deliver an
approximate rate of return of 5-8% for well-sited installations,
for each technology.
Since the scheme started, PV costs have fallen more rapidly than
expected, and led to Government reviewing the level of PV solar
You should consult the Ofgem and DECC FiT pages for the latest
information on tariff levels.
I already generate - can I claim a FiT?
The FiT is set up to complement the Renewables Obligation (RO)
which is the support mechanism for large scale generation.
If you have an existing microgenerator (up to 50 kW) and have
received the RO, you will transfer to FiT. For a larger generator
(above 50kW but below 5MW) you will be able to choose between FiT
and the RO. In most cases FiTs offer a higher incentive than the
RO, and could yield returns of 5-8%, equivalent to a payback period
of 10-14 years (though this depends on the specific installation
Generation systems above 5 MW cannot transfer between schemes.
If you are generating, or considering generating renewable
electricity then you may wish to consider the following
- Do you have scope to improve your energy
By reducing your energy use you can reduce the size of electricity
generation you need.
- Use the most appropriate technology and generation
It is important to use the renewable technology that is most
suited to your circumstances. Our advisors will be able to point you
- FiTs or ROCs?
If your generation capacity is above 50kW but below 5MW, you need
to select whether to benefit from a FiT or ROC. When comparing the
options you should bear in mind that ROCs can vary with market
forces, but FiTs are fixed and index-linked.
- Financing the capital cost
Investing in green technology makes sound business and
environmental sense, especially with the easy, affordable and
flexible financing scheme brought to you by Carbon Trust
Implementation and Siemens Financial Services. Find out more about
our Implementation and finance
Interest-free loans are still available in Wales and Northern
Companies can also apply for Enhanced Capital Allowances (ECAs),
enabling them to claim 100% first-year capital allowances on their
spending on qualifying plant and machinery. Learn more at https://etl.decc.gov.uk/.
In general, if your installation has received a grant from, or
on behalf of, a public authority it will not be eligible for the
FiT Scheme until the grant has been paid back. The exceptions to
this rule are:
- grants which were awarded before 1 April 2010 relating to
eligible installations commissioned before 15 July 2009
- grants made to domestic installations before 1 April 2010
relating to eligible installations commissioned between 15 July
2009 and 31 March 2010.
To apply for the FiT scheme, installations must be located in
Great Britain and have an approved meter in place.
However at the very small scale, the amount of exports for the
payment of export tariffs (not generation tariffs) will be allowed
to be "deemed", for generators of 30kW or less as follows:
- 50% of generation for solar PV
- 75% of generation for hydro installations.
Suppliers are likely to need to pay for the cost of the smart
meters under the Government's mandated roll out, due to be
completed by the end of 2020. However, if a FiT generator needs a
smart meter before this planned roll out, the generator may need to
- Selecting an installer
Microgeneration systems which have a capacity of 50kW or less
(excluding anaerobic digestion) are required to obtain the
Microgeneration Certification Scheme (MCS) certification or
equivalent. This means the installations must be commissioned by a
MCS-certified Installer using a MCS-Certified Product or be
certified under an equivalent scheme.
More details are given on the MCS website.
Installations with a capacity greater than 50kW but up to and
including 5MW (or all anaerobic digestion up to 5MW) need to apply
for ROO accreditation. Ofgem's website has further information
on how to apply for
- Choosing a supplier
Let your chosen supplier know that you plan to receive FiTs. The
supplier will register or confirm your details with Ofgem and your
installation will be added to the Central FiTs Register. A list of participating
suppliers is available on Ofgem's website.
Further sources of information
The Carbon Trust can help you reduce your energy demand and
evaluate the best renewable electricity generation technology for
your organisation. Find out more about our Implementation and
Ofgem, who are administering the FiT scheme on behalf of DECC,
have published guidance on their
More details of the microgeneration scheme are given on the MCS website.
For information on accreditation of installers below 50kW and
general information about products and installers, email firstname.lastname@example.org or ring the MCS
helpline on 020 7090 1082.
For general enquiries regarding FiT accreditation of installations
between 50kW and 5MW please contact email@example.com or
call 020 7901 7310.