Commission Regulation (EU) No 548/2014Show full title

[F1 2. Minimum energy efficiency requirements for large power transformers U.K.

Minimum efficiency requirements for large power transformers are set out in Tables I.7, I.8 and I.9.

There may be specific instances where the replacement of an existing transformer, or the installation of a new one, meeting the applicable minimum requirements set out in Tables I.7, I.8 and I.9 would result in disproportionate costs. As general rule, costs can be considered to be disproportionate when the extra transportation and/or installation costs of a Tier 2 or Tier 1, as applicable, compliant transformer would be higher than the net present value of the additional avoided electricity losses (tariffs, taxes and levies excluded) over its normally expected service life. This net present value shall be calculated based on capitalised loss values using widely accepted social discount rates (1) .

In those cases, the following fall-back provisions apply:

As of the date of application of Tier 2 requirements ( 1 July 2021 ), when the one-to-one replacement of a large power transformers in an existing site entails disproportionate costs associated to its transportation and/or installation, or is technically infeasible, the replacement transformer is, exceptionally, only required to comply with Tier 1 requirements for the given rated power.

Furthermore, if the cost of installing a replacement transformer complying with Tier 1 requirements are also disproportionate, or where no technically feasible solutions exist, no minimum requirements shall apply to the replacement transformer.

As of the date of application of Tier 2 requirements ( 1 July 2021 ), when the installation of a new large power transformer in a new site entails disproportionate costs associated to their transportation and/or installation, or is technically infeasible, the new transformer is, exceptionally, only required to meet Tier 1 requirements for the given rated power.

In these cases, the manufacturer, importer or authorised representative responsible for placing on the market or putting into service the transformer shall:

include in the technical documentation of the new or replacement transformer the following information:

• address and contact details of the commissioner of the transformer,

• the specific location where the transformer is to be installed,

• the technical and/or economic justification to install a new or replacement transformer that does not comply with Tier 2 or Tier 1 requirements. If the transformer(s) were commissioned by a tendering process, all the necessary information regarding the analysis of bids and the award decision, shall also be provided,

• notify the competent national market surveillance authorities.

  Table I.7

  Minimum Peak Efficiency Index requirements for liquid immersed large power transformers

  Rated Power (MVA)	Tier 1 ( 1.7.2015 )	Tier 2 ( 1.7.2021 )
  	Minimum Peak Efficiency Index (%)
  ≤ 0,025	97,742	98,251
  0,05	98,584	98,891
  0,1	98,867	99,093
  0,16	99,012	99,191
  0,25	99,112	99,283
  0,315	99,154	99,320
  0,4	99,209	99,369
  0,5	99,247	99,398
  0,63	99,295	99,437
  0,8	99,343	99,473
  1	99,360	99,484
  1,25	99,418	99,487
  1,6	99,424	99,494
  2	99,426	99,502
  2,5	99,441	99,514
  3,15	99,444	99,518
  4	99,465	99,532
  5	99,483	99,548
  6,3	99,510	99,571
  8	99,535	99,593
  10	99,560	99,615
  12,5	99,588	99,640
  16	99,615	99,663
  20	99,639	99,684
  25	99,657	99,700
  31,5	99,671	99,712
  40	99,684	99,724
  50	99,696	99,734
  63	99,709	99,745
  80	99,723	99,758
  100	99,737	99,770
  125	99,737	99,780
  160	99,737	99,790
  ≥ 200	99,737	99,797

Minimum PEI values for MVA ratings that fall in between the ratings given in Table I.7 shall be calculated by linear interpolation

Table I.8

Minimum Peak Efficiency Index requirements for dry-type large power transformers with Um ≤ 36kV

Rated Power (MVA)	Tier 1 ( 1.7.2015 )	Tier 2 ( 1.7.2021 )
	Minimum Peak Efficiency Index (%)
3,15 < Sr ≤ 4	99,348	99,382
5	99,354	99,387
6,3	99,356	99,389
8	99,357	99,390
≥ 10	99,357	99,390

Minimum PEI values for MVA ratings that fall in between the ratings given in Table I.8 shall be calculated by linear interpolation

Table I.9

Minimum Peak Efficiency Index requirements for dry-type large power transformers with Um > 36kV

Rated Power (MVA)	Tier 1 ( 1.7.2015 )	Tier 2 ( 1.7.2021 )
	Minimum Peak Efficiency Index (%)
≤ 0,05	96,174	96,590
0,1	97,514	97,790
0,16	97,792	98,016
0,25	98,155	98,345
0,4	98,334	98,570
0,63	98,494	98,619
0,8	98,677	98,745
1	98,775	98,837
1,25	98,832	98,892
1,6	98,903	98,960
2	98,942	98,996
2,5	98,933	99,045
3,15	99,048	99,097
4	99,158	99,225
5	99,200	99,265
6,3	99,242	99,303
8	99,298	99,356
10	99,330	99,385
12,5	99,370	99,422
16	99,416	99,464
20	99,468	99,513
25	99,521	99,564
31,5	99,551	99,592
40	99,567	99,607
50	99,585	99,623
≥ 63	99,590	99,626

Minimum PEI values for MVA ratings that fall in between the ratings given in Table I.9 shall be calculated by linear interpolation.]

Textual Amendments

F1 Substituted by Commission Regulation (EU) 2019/1783 of 1 October 2019 amending Regulation (EU) No 548/2014 on implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to small, medium and large power transformers (Text with EEA relevance).

(1)

[F1 The European Commission Better Regulation Toolbox suggest using a value of 4 % for the social discount rate

https://ec.europa.eu/info/sites/info/files/file_import/better-regulation-toolbox-61_en_0.pdf]

Textual Amendments

F1 Substituted by Commission Regulation (EU) 2019/1783 of 1 October 2019 amending Regulation (EU) No 548/2014 on implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to small, medium and large power transformers (Text with EEA relevance).