2015/16 Full Year Results19 MAY 2016

2015/16 FULL YEAR RESULTS MAY 20162

2015/16 financial performance

OPERATINGPROFIT£4.1bn

RETURN ON EQUITY12.3%

CAPITAL INVESTMENT£3.9bn

EARNINGS PER SHARE63.5p

DIVIDEND PER SHARE43.34p

ASSETGROWTH*4%

* Regulatory asset base growth calculated at constant currency Adjusted results, excluding exceptional items and remeasurements

2015/16 FULL YEAR RESULTS MAY 20163

Safety and reliability One of the best years for safety performance UK performance once again excellent Double-digit improvement in key US safety

measures Networks demonstrated strong reliability

2015/16 FULL YEAR RESULTS MAY 20164

2015/16 UK performance review

Continued strong performance £330m+ in savings generated for

customers through three years of RIIO Other activities outperformed Regulatory update Gas Distribution process on track

UK

UK

RIIO mid-period reviewOnshore competitionFuture System Operator role

2015/16 FULL YEAR RESULTS MAY 20165

2015/16 US performance review

Returns in line with expectations

Step-up in capital investment Good progress with rate case

filings

US

2015/16 FULL YEAR RESULTS MAY 20166

For more information:investors.nationalgrid.com