ESB | 104,816 followers on LinkedIn. ESB is leading the transition to a clean energy future, powered by electricity. | At ESB, we believe in a Brighter Future... We believe that electricity is an enabler of societal and economic well-being and that every citizen should have access to secure, sustainable and affordable electricity supplies. Since our establishment in 1927, we have worked to bring light and energy to the people of Ireland, allowing individuals and communities to fulfil their potential in whatever walk of life they are in.