H1 2018 Highlights

Customer Solutions Business Description •~3% of Group EBITDA • Customer-facing businesses including supply of electricity, gas, energy services, e-transport and wholesale telecoms Strategy Meet customer energy needs - Competitive Offerings • Excellent Customer Service Innovative and value driven solutions Competing effectively 20 20 H1 2018 EBITDA - €620m ES3 Electric Ireland 3% SEM Retail Market Share (MWh) • Irish market share¹ 33% with 1.4m customer accounts Electric GB Supply residential market entry under brand "ESB Energy" as long term growth opportunity Ireland 33% Focus Meet customer energy needs through value driven solutions at appropriate margins SSE Airtricity 20% Bord Gais Energy 9% Viridian - Energia & Other 14% Power NI 24% 1 Irish Republic of Ireland and Northern Ireland Energy for generations esb.ie/ir

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