Updated to 18 February 2026 (Act No. 1 of 2026 and S.I. No. 54 of 2026)
All effects below are reflected in the most recent Revised Act.
Electricity (Supply) Act 1927
No. 27 of 1927
Contents
Commencement
| Section | Commencement/Effective Date Where the commencement and effective dates differ, the effective date is shown below.
|
Commencement Information |
|---|---|---|
| Whole Act | 28 May 1927 | Commenced on enactment |
Amendments and other effects
| How Affected | Affecting Provision |
|---|---|
| Act included in collectively cited Electricity (Supply) Acts | 19/1930, s. 15(2), (3) |
| Collectively cited Electricity (Supply) Acts included in collectively cited ESB Acts | 5/2014, s. 9(2), (3) |
| Application extended and references to "authorised undertaker" construed as including references to "holder of an authorisation or the holder of a direct line permission" | 23/1999, ss. 1(2), 50(2), (3), (4) |
| References to "electric line" construed | 5/2014, ss. 4(1), 9(3) |
| 12/1945, s. 46(2) | |
| Application restricted | S.I. No. 477 of 2011, regs. 1(3), 42(22), sch. 2 (col. cit.) |
| 23/1999, ss. 1(2), 16(2) | |
| 35/1958, s. 9(2)(c), (d) (col. cit.) | |
| Functions transferred and references to Minister for Finance construed | S.I. No. 418 of 2011, arts. 1(2), 3 & sch. 1 |
| Functions transferred and references to Minister construed | S.I. No. 300 of 2002, arts. 1(2), 4(1)(a) & sch. pt. 1 (col.cit.) |
| S.I. No. 9 of 1980 (col. cit) | |
| S.I. No. 295 of 1977 (col. cit.) | |
| S.I. No. 125 of 1959 (col. cit.) | |
| S. 1 references construed | 1/2014, ss. 1(22), 9(2),(3) |
| S. 2(3) references construed | 6/1977, s. 23 (3), (4) |
| S. 2(6) application restricted | 17/1988, s. 6(2),(3) |
| S. 2(7) amended | 2/1961, s. 11 |
| S. 3 repealed | 35/1958, s. 9(5) |
| S. 6 application extended | 9/2001, s. 5 |
| S. 6(2) references construed | 6/1977, s. 25 |
| S. 7 application extended | 4/1935, s. 17 |
| S. 7(1), (2), (3) application restricted | 35/1958, s. 6(2) |
| S. 7(3), (4) amended | 2/1961, s. 12 |
| S. 8 application extended | 4/1935, s. 16 |
| S. 8(3), (4) deleted | 33/2004, ss. 3, 4, 61(1), 63, sch. 2, pt. 1 |
| S. 10 repealed | 6/1977, s. 31(a) |
| S. 11 repealed | 3/2012, ss. 1(2), 22(a) |
| S. 12(1) amended | 10/2011, ss. 1(2), 6, 27(a) |
| S. 12(2) substituted | 26/1929, s. 2 |
| S. 12(3) application restricted | 19/1930, s. 4 |
| S. 12(4), (5) application extended | 4/1935, s. 13(3) |
| 32/1931, s. 3(3) | |
| S. 12(6) amended | 10/2011, ss. 1(2), 6, 27(b) |
| S. 13 application extended | 4/1935, s. 13(4) |
| 32/1931, s. 3(4) | |
| S. 13(1) amended | 19/1930, s. 5(a) |
| S. 13(5) inserted | 19/1930, s. 5(b) |
| S. 14 application extended | 4/1935, s. 13(4) |
| 32/1931, s. 3(4) | |
| S. 14 power of Minister to vary rate under | 19/1930, s. 6 |
| S. 15 application restricted | 26/1929, s. 3(1) |
| S. 15 references to "the said advances" construed | 19/1930, s. 3(4) |
| 26/1929, s. 3(2) | |
| S. 15(3) amended | 19/1930, s. 7(a) |
| S. 15(6) substituted | 19/1930, s. 7(b) |
| S. 15(10) inserted | 19/1930, s. 7(c) |
| S. 15(10) amended | 15/1932, s. 3 |
| S. 15(11) inserted | 19/1930, s. 7(c) |
| S. 16 repealed | 24/1972, s. 4 |
| S. 16 application extended | 4/1935, s. 13(4) |
| 32/1931, s. 3(4) | |
| S. 17(3) repealed | 17/1954, s. 16(2) |
| Ss. 19 , 20 certain functions of Board regarded as functions of Distribution System Operator | S.I. No. 280 of 2008, regs. 1, 24(b) |
| Ss. 19, 20 certain functions of Board regarded as functions of Transmission System Operator | S.I. No. 445 of 2000, regs. 1(2), 8(2)(b) |
| Ss. 19, 20 references to "transmission system of the Board" construed as "transmission system of transmission system operator" | S.I. No. 445 of 2000, reg. 25(1)(d), (e) as inserted by S.I. No. 619 of 2022, reg. 3(d)(iii) |
| S. 20(3) application extended | 1/1941, s. 3(1) |
| 15/1932, s. 5(1) | |
| S. 21 repealed | 9/2001, s. 10 |
| Ss. 27, 28 certain functions of Board regarded as functions of Distribution System Operator | S.I. No. 280 of 2008, regs. 1, 24(b) |
| Ss. 27, 28 certain functions of Board regarded as functions of Transmission System Operator | S.I. No. 445 of 2000, regs. 1(2), 8(2)(b) |
| Ss. 27, 28 references to "transmission system of the Board" construed as "transmission system of transmission system operator" | S.I. No. 445 of 2000, reg. 25(1)(d), (e) as inserted by S.I. No. 619 of 2022, reg. 3(d)(iii) |
| S. 32 application extended | 12/1945, s. 45 |
| 4/1935, s. 18 | |
| S. 33 repealed subject to transitional provisions | 12/1949, ss. 2(7), 17, sch. |
| S. 34 repealed subject to transitional provisions | 12/1949, ss. 2(7), 17, sch. |
| S. 35(1) amended | 32/2022, ss. 11, 13(2) |
| 23/1999, ss. 1 (2), 42 | |
| S. 36 repealed | 23/1999, ss. 1(2), 41 |
| S. 37 repealed subject to transitional provisions | 23/1999, ss. 1(2), 15(4), 41 |
| S. 37(9) inserted | S.I. No. 292 of 1998, reg. 2 |
| S. 39(9), (11) application extended | 4/1952, s. 9 |
| S. 39(9), (11) references to "same terms" construed | 27/1942, s. 3 |
| S. 44 certain functions of Board regarded as functions of Distribution System Operator | S.I. No. 280 of 2008, regs. 1, 24(b) |
| S. 44 certain functions of Board regarded as functions of Transmission System Operator | S.I. No. 445 of 2000, regs. 1(2), 8(2)(b) |
| S. 44 references to "transmission system of the Board" construed as "transmission system of transmission system operator" | S.I. No. 445 of 2000, reg. 25(1)(d), (e) as inserted by S.I. No. 619 of 2022, reg. 3(d)(iii) |
| S. 45 Minister for Fisheries construed | S.I. No. 30 of 1977 |
| S.I. No. 83 of 1965 | |
| S.I. No. 67 of 1957 | |
| S.R. & O. No. 40 of 1934 | |
| 6/1928. ss. 3(3), 5(2) | |
| S. 45(1) application extended and references to "making of special orders" construed | 23/1999, s. 1(2), 47(1) |
| S. 45(5)(a) amended | 23/1999, ss. 1(2), 43 |
| S. 45(5)(b) amended | 38/1934, s. 17(1) |
| S. 47 Minister for Fisheries construed | S.I. No. 30 of 1977 |
| S.I. No. 83 of 1965 | |
| S.I. No. 67 of 1957 | |
| S.R. & O. No. 40 of 1934 | |
| 6/1928. ss. 3(3), 5(2) | |
| Ss. 47, 51 certain functions of Board regarded as functions of Distribution System Operator | S.I. No. 280 of 2008, regs. 1, 24(b) |
| Ss. 47, 51 certain functions of Board regarded as functions of Transmission System Operator | S.I. No. 445 of 2000, regs. 1(2), 8(2)(b) |
| Ss. 47, 51 references to "transmission system of the Board" construed as "transmission system of transmission system operator" | S.I. No. 445 of 2000, reg. 25(1)(d), (e) as inserted by S.I. No. 619 of 2022, reg. 3(d)(iii) |
| S. 51 application extended | 23/1999, ss. 11(2), 48 |
| S. 51(1) references to "lines" construed as "electric lines" | 5/2014, ss. 4(2), 9(3) |
| 12/1945, s. 46 | |
| S. 51(1), (2) application extended | 20/1935, s. 2(1), (2) |
| S. 52 reference to "road" construed as including "street" | 20/1935, s. 3 |
| S. 52(1) application extended | 23/1999, ss. 1(2), 48 |
| S. 53(1), (3)-(5), (9) application extended | 5/2014, ss. 5(1), 9(3) |
| S. 53(1)-(5), (9) application extended and references to "Board" construed | 23/1999, ss. 1(2), 49 |
| S. 53(2) application restricted | 5/2014, ss. 6, 9(3) |
| S. 53(2) application extended | 20/1935, s. 4 |
| S. 53(3), (4), (5) amended | 12/1945, s. 46(4), (5) |
| S. 53(5) substituted | 6/1985, s. 1 |
| S. 53(5) declared invalid* | |
| S. 54 application extended and references to "authorised undertaker" construed as including references to "holder of an authorisation or the holder of a direct line permission" | 23/1999, ss. 1(2), 50(1) |
| S. 55 functions transferred from Minister for Communications to Minister for the Marine | S. I. No. 91 of 1987, art. 4, sch. |
| Ss. 58 , 59, 62 certain functions of Board regarded as functions of Distribution System Operator | S.I. No. 280 of 2008, regs. 1, 24(b) |
| Ss. 58, 59, 62 certain functions of Board regarded as functions of Transmission System Operator | S.I. No. 445 of 2000, regs. 1(2), 8(2)(b) |
| Ss. 58, 59, 62 references to "transmission system of the Board" construed as "transmission system of transmission system operator" | S.I. No. 445 of 2000, reg. 25(1)(d), (e) as inserted by S.I. No. 619 of 2022, reg. 3(d)(iii) |
| S. 71 functions transferred and references to "Sanitary Authority" construed as references to "Irish Water" | 50/2013, ss. 1(3), 6, 7(4) |
| S. 71 (2), (3) repealed | 33/1964, s. 1, sch. |
| S. 72 repealed | 33/1964, s. 1, sch. |
| S. 77 substituted | 23/1999, ss. 1(2), 44 |
| S. 78 repealed | 33/1964, s. 1, sch. |
| S. 81 amended | 33/1964, s. 1, sch. |
| S. 84 certain functions of Board regarded as functions of Distribution System Operator | S.I. No. 280 of 2008, regs. 1, 24(b) |
| S. 84 certain functions of Board regarded as functions of Transmission System Operator | S.I. No. 445 of 2000, regs. 1(2), 8(2)(b) |
| S. 84 references to "transmission system of the Board" construed as "transmission system of transmission system operator" | S.I. No. 445 of 2000, reg. 25(1)(d), (e) as inserted by S.I. No. 619 of 2022, reg. 3(d)(iii) |
| S. 86 repealed | 3/1998, s. 125, sch. 8 |
| S. 88(4) perjury construed | 13/2021, s. 4(1), schedule 1 |
| S. 91 application extended and references to "Board" construed as references to "Commission" | 23/1999, ss. 1(2), 51 |
| S. 95 amended | 31/1999, ss. 162, 163, sch. 4 |
| 3/1998, s. 125, sch. 8 | |
| S. 96 repealed | 17/1988, s. 9(1) |
| S. 96 reference to "local authority" construed | 19/1930, s. 8 |
| S. 98 substituted | 23/1999, ss. 1(2), 45 |
| S. 98(1) amended | 1/1941, s. 5 |
| S. 100 certain functions of Board regarded as functions of Distribution System Operator | S.I. No. 280 of 2008, regs. 1, 24(b) |
| S. 100 certain functions of Board regarded as functions of Transmission System Operator | S.I. No. 445 of 2000, regs. 1(2), 8(2)(b) |
| S. 100 references to "transmission system of the Board" construed as "transmission system of transmission system operator" | S.I. No. 445 of 2000, reg. 25(1)(d), (e) as inserted by S.I. No. 619 of 2022, reg. 3(d)(iii) |
| S. 107 repealed | 27/1996, ss. 1(2), 6(1), sch. 1, pt. 1 |
| S. 108 powers extended | 35/1995, s. 16(8)(b) as substituted by 3/2012, ss. 1(2), 5(8)(b) |
| S. 112 amended | 24/1983, s. 8(1), sch. 4, pt. 1 |
| Sch. 1 para. 1 amended subject to transitional provisions | 19/1930, ss. 9(1), (2), 13, 14 |
| Sch. 1 para. 8 amended | 38/1934, s. 18(1), (2) |
SIs made under the Act
| Section | SIs made under the Act |
|---|---|
| S. 17(1) | Shannon Works Transfer (No. 22) Order 1944 (S. I. No. 93 of 1944) |
| Shannon Works Transfer (No. 21) Order 1931 (S.I. No. 89 of 1931) | |
| Shannon Works Transfer (No. 20) Order 1930 (S.I. No. 60 of 1930) | |
| Shannon Works Transfer (No. 19) Order 1930 (S.I. No. 52 of 1930) | |
| Shannon Works Transfer (No. 18) Order 1930 (S.I. No. 40 of 1930) | |
| Shannon Works Transfer (No. 17) Order 1930 (S.I. No. 35 of 1930) | |
| Shannon Works Transfer (No. 16) Order 1930 (S.I. No. 25 of 1930) | |
| Shannon Works Transfer (No. 15) Order 1930 (S.I. No. 30 of 1930) | |
| Shannon Works Transfer (No. 14) Order 1930 (S.I. No. 27 of 1930) | |
| Shannon Works Transfer (No. 13) Order 1930 (S.I. No. 17 of 1930) | |
| Shannon Works Transfer (No. 12) Order 1929 (S.I. No. 15 of 1930) | |
| Shannon Works Transfer (No. 11) Order 1929 (S.I. No. 73 of 1929) | |
| Shannon Works Transfer (No. 10) Order 1929 (S.I. No. 72 of 1929) | |
| Shannon Works Transfer (No. 9) Order 1929 (S.I. No. 71 of 1929) | |
| Shannon Works Transfer (No. 8) Order 1929 (S.I. No. 70 of 1929) | |
| Shannon Works Transfer (No. 7) Order 1929 (S.I. No. 58 of 1929) | |
| Shannon Works Transfer (No. 6) Order 1929 (S.I. No. 55 of 1929) | |
| Shannon Works Transfer (No. 5) Order 1929 (S.I. No. 53 of 1929) | |
| Shannon Works Transfer (No. 4) Order 1929 (S.I. No. 49 of 1929) | |
| Shannon Works Transfer (No. 3) Order 1929 (S.I. No. 35 of 1929) | |
| Shannon Works Transfer (No. 2) Order 1929 (S.I. No. 32 of 1929) | |
| Shannon Works Transfer (No. 1) Order 1929 (S.I. No. 13 of 1929) | |
| S. 104 | Relief From Obligation to Supply Gas (Sligo Area) Order 1968 (S.I. No. 168 of 1968) |
| S. 104(1) | Electricity Supply (Relief of Gas Undertaker) (Tralee) Order 1939 (S.I. No. 319 of 1939) |