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Filing Detail
Form 20-F - Annual and transition report of foreign private issuers [Sections 13 or 15(d)]:
SEC Accession No. 0001004315-21-000067
Filing Date
2021-06-08
Accepted
2021-06-08 06:50:16
Documents
704
Period of Report
2021-03-31

Document Format Files

Seq Description Document Type Size
1 20-F nggtf-20210331.htm   iXBRL 20-F 10570020
2 EX-2.(B).12 ex2b12-ngnget_trustdeed2.htm EX-2.(B).12 420480
3 EX-2.(B).13 ex2b13-ngna20_trustdeede.htm EX-2.(B).13 252255
4 EX-4.(B).2 ex4b2-projectisland_spas.htm EX-4.(B).2 265843
5 EX-4.(C).17 ex4c17-20_chairappletter.htm EX-4.(C).17 28401
6 EX-12.1 ex1212020-21xsection302cer.htm EX-12.1 8578
7 EX-12.2 ex1222020-21xsection302cer.htm EX-12.2 8571
8 EX-13.1 ex1312020-21xsection906cer.htm EX-13.1 5851
9 EX-15.1 ex1512020-2021deloittecons.htm EX-15.1 2282
10 EX-17.1 ex171subsidiaryguarantorsa.htm EX-17.1 3025
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  Complete submission text file 0001004315-21-000067.txt   221396129

Data Files

Seq Description Document Type Size
11 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT nggtf-20210331.xsd EX-101.SCH 265095
12 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT nggtf-20210331_cal.xml EX-101.CAL 288404
13 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT nggtf-20210331_def.xml EX-101.DEF 1392631
14 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT nggtf-20210331_lab.xml EX-101.LAB 2235766
15 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT nggtf-20210331_pre.xml EX-101.PRE 1754149
500 EXTRACTED XBRL INSTANCE DOCUMENT nggtf-20210331_htm.xml XML 11895271
Mailing Address 1-3 STRAND LONDON X0 WC2N 5EH
Business Address 1-3 STRAND LONDON X0 WC2N 5EH (44) 207 004 3220
NATIONAL GRID PLC (Filer) CIK: 0001004315 (see all company filings)

IRS No.: 980367158 | Fiscal Year End: 0331
Type: 20-F | Act: 34 | File No.: 001-14958 | Film No.: 211001224
SIC: 4922 Natural Gas Transmission
Office of Energy & Transportation