Statutory guidance

Feed in Tariffs (FITs) determinations - Year 16 (1 April 2025 to 31 March 2026) (accessible webpage)

Updated 28 February 2025

Determination by the Secretary of State for Energy Security and Net Zero

In accordance with the Feed-in Tariffs Order 2012, the Secretary of State has made the following determinations in regard to the operation of Feed-in Tariffs for FIT year 16 (1 April 2025 to 31 March 2026).

Deeming the amount of electricity exported from an accredited FIT installation (Article 37)

1. The amount of electricity (expressed as a percentage) deemed to be exported by different categories of accredited FIT installations with a total installed capacity of 30 kilowatts or less where that amount is not measured by an export meter, for FIT year 16 is:
   
   1. (a) 50% of the generation meter reading for accredited FIT installations using thefollowing eligible low-carbon energy sources—
      1. (i) combined heat and power;
      2. (ii) anaerobic digestion;
      3. (iii) solar photovoltaic; or
      4. (iv) wind; and
   2. (b) 75% of the generation meter reading for an accredited FIT installation which is a hydro generating station.

The value of deemed exports for the purpose of calculating net deemed export payments

(Article 38 (1) (a))

For FIT year 16, the value of deemed exports for the purpose of net deemed export payments is the average time-weighted system sell price for electricity given in the Balancing and Settlement Code in respect of FIT year 16.

The value of metered exports for the purpose of calculating net metered export payments

(Article 38 (1) (f))

For FIT year 16, the value of metered exports for the purpose of net metered export payments is the average time-weighted system sell price for electricity given in the Balancing and Settlement Code in respect of FIT year 16.

Qualifying FIT Costs (Article 38 (1) (c))

The costs of a licensee which constitute qualifying FIT costs for FIT year 16 are determined as follows:

Type of Licensee	Generator	Qualifying FITs costs per generator
Large FIT licensee	New generator	£10
	Ongoing generator	£15
Small FIT licensee	New generator	£25
	Ongoing generator	£30

1. For the purposes of this determination, for FIT year 16:
   
   
   1. 1. ‘Large FIT licensee’ means a FIT licensee which either:
      1. (a) supplies electricity to at least 250,000 domestic customers; or
      2. (b) together with its Affiliates (as defined in Condition 1 of the Electricity Supply Standard Licence Conditions) jointly supplies electricity to at least 250,000 domestic customers as at 31 December 2024.
         
         
   2. 2. ‘Small FIT licensee’ means a FIT licensee which both:
      1. (a) supplies electricity to fewer than 250,000 domestic customers; and
         
      2. (b) together with its Affiliates (as defined in Condition 1 of the Electricity Supply Standard Licence Conditions) jointly supplies electricity to fewer than 250,000 domestic customers, as at 31 December 2024.
         
         
   3. 3. ‘new generator costs’ are determined to be the one -off costs incurred by a FIT licensee on the occasion when an accredited FIT installation is identified on the central FIT register as being an accredited FIT installation for the first time.
      
      
   4. 4. ‘ongoing generator costs’ are determined to be the costs which continue to be incurred by a FIT licensee in respect of an accredited FIT installation which remains identified on the central FIT register in respect of that FIT licensee during FIT year 16.

Note: A licensee may incur both the one-off new generator costs and ongoing generator costs in respect of the same accredited FIT installation where an accredited FIT installation is first identified and then remains identified on the central FIT register during FIT year 16.

Mutualisation Range (Article 38 (1) (d))

For FIT year 16, the mutualisation trigger range (as referred to in article 30A(1)(b) and defined in article 30A(9)) shall be a lower limit of £5,526,324 and a higher limit of £55,263,237.

Reasonable costs of the Authority incurred as the result of administering the FIT scheme (Article 38 (1) (e))

For FIT year 16 the Secretary of State determines that costs incurred during the year by the Authority to develop its IT systems for the continued administration of the FIT scheme, as well as other costs incurred in respect of the Authority’s ongoing general operation of the scheme are ‘reasonable costs’ for the purposes of article 25.

Signed
Michael Shanks MP
27 February 2025