Exhibit EX-99.2

Pursuant to Rule 13a – 16 or 15d – 16 of
The Securities Exchange Act of 1934

All the above documents (along with associated proxy cards) will shortly be available to the public for inspection at the UKLA Document Viewing Facility at: 25 The North Colonnade, Canary Wharf, London E14 5HS.

In addition, the Annual Report on Form 20-F has been filed with the US Securities and Exchange Commission. Shareholders resident in the United States can receive a hard copy of the Company’s audited financial statements free of charge on request by contacting The Bank of New York Mellon toll free at 1-800-466-7215.

The documents listed above are also available electronically on National Grid’s website at http://www.nationalgrid.com/annualreports/2010/.

Note: National Grid’s Financial Timetable for the remainder of the 2009/10 financial year and for 2010/11 is currently scheduled as follows:


9 June 2010		Scrip reference price announced
21 July 2010		Scrip election date for 2009/10 final dividend
Monday 26 July 2010		Interim Management Statement and Annual General Meeting, ICC, Birmingham
18 August 2010		2009/10 final dividend paid to qualifying ordinary shareholders
18 November 2010		2010/11 half year results
1 December 2010		Ordinary shares go ex-dividend
3 December 2010		Record date for 2010/11 interim dividend
8 December 2010		Scrip reference price announced

National Grid has been notified that, earlier today, 120,333 shares held in Treasury were transferred to share scheme participants. Following this change, National Grid plc’s registered capital from 4 June 2010 consists of 2,617,190,095 ordinary shares, of which 140,972,220 have been purchased in the market and registered as Treasury Shares; leaving a balance of 2,476,217,875 shares with voting rights.

The figure of 2,476,217,875 may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, National Grid plc under the FSA’s Disclosure and Transparency Rules.

National Grid’s registered capital from 31 May 2010 consists of 2,617,190,095 ordinary shares, of which 141,092,553 have been purchased in the market and registered as Treasury Shares; leaving a balance of 2,476,097,542 shares with voting rights.

The figure of 2,476,097,542 may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, National Grid plc under the FSA’s Disclosure and Transparency Rules.

National Grid plc announces it has repurchased GBP 10,309,000 of the £247,203,000 5.25 per cent. Instruments due June 2011 for cancellation. Following the repurchase the amount of securities outstanding is £236,894,000.

National Grid plc announces it has repurchased GBP 24,285,000 of the £271,488,000 5.25 per cent. Instruments due June 2011 for cancellation. Following the repurchase the amount of securities outstanding is £247,203,000.

National Grid plc announces it has repurchased GBP 28,512,000 of the £300,000,000 5.25 per cent. Instruments due June 2011 for cancellation. Following the repurchase the amount of securities outstanding is £271,488,000.

The Trustee of the National Grid 1996 Employee Benefit Trust late yesterday confirmed that the following awards made to Executive Directors under the National Grid Executive Share Option Plan, in the June 2000 operation of the Plan at 531.5p per share, have lapsed in full, effective at the 31 March 2010 year end:


Director	Number of shares over which award granted- and fully lapsed
Mark Fairbairn		33,489
Nick Winser		19,755

These awards were subject to a performance condition. However the performance condition was not satisfied.

National Grid has been notified that, earlier today, Monday 17th May 2010,
29,960 shares held in Treasury were transferred to share scheme participants. Following this change, National Grid plc’s registered capital from 17 May 2010 consists of 2,617,190,095 ordinary shares, of which 141,092,553 have been purchased in the market and registered as Treasury Shares; leaving a balance of 2,476,097,542 shares with voting rights.

National Grid has been notified that, yesterday, Monday 10th May 2010,
68,858 shares held in Treasury were transferred to share scheme participants. Following this change, National Grid plc’s registered capital from 10 May 2010 consists of 2,617,190,095 ordinary shares, of which 141,122,513 have been purchased in the market and registered as Treasury Shares; leaving a balance of 2,476,067,582 shares with voting rights.

The figure of 2,476,067,582 may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, National Grid plc under the FSA’s Disclosure and Transparency Rules.

Under the SIP, operated through Excellerate HRO UK Limited as Trustee, employees may acquire NG ordinary shares by regular monthly contributions. The current monthly purchase of 46,160 NG ordinary shares under the scheme was confirmed by the Trustee on Friday 7th May, the shares having been purchased in the market on 7th May 2010, at a price of 603 pence per share, on behalf of some 3,000 participants.

The following Executive Directors of NG are beneficiaries of the shares purchased on their behalf:


Director		Shares purchased in SIP
Mark Fairbairn		21 Ordinary Shares
Steven Holliday		21 Ordinary Shares


Director		Resulting total interest
Mark Fairbairn		667,593 Ordinary Shares
Steven Holliday		1,325,618 Ordinary Shares

— —
Contact: Robin Kerner, Assistant Secretary, Shareschemes (0207 004 3223)

Note: Mark Fairbairn has advised the company that, in accordance with DTR3 and Section 253 Companies Act 2006; his total interest includes a further 21 shares purchased by the SIP Trustee for his partner.

National Grid has been notified that, earlier today
35,886 shares held in Treasury were transferred to share scheme participants. Following this change, National Grid plc’s registered capital from 6 May 2010 consists of 2,617,190,095 ordinary shares, of which 141,191,371 have been purchased in the market and registered as Treasury Shares; leaving a balance of 2,475,998,724 shares with voting rights.

The figure of 2,475,998,724 may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, National Grid plc under the FSA’s Disclosure and Transparency Rules.

National Grid plc’s registered capital at 30 April 2010 consists of 2,617,190,095 ordinary shares, of which 141,227,257 have been purchased in the market and registered as Treasury Shares; leaving a balance of 2,475,962,838 shares with voting rights.

The figure of 2,475,962,838 may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, National Grid plc under the FSA’s Disclosure and Transparency Rules.

National Grid has been notified that, earlier today
147,627 shares held in Treasury were transferred to share scheme participants. Following this change, National Grid plc’s registered capital from 27 April 2010 consists of 2,617,190,095 ordinary shares, of which 141,227,257 have been purchased in the market and registered as Treasury Shares; leaving a balance of 2,475,962,838 shares with voting rights.