200 new jobs have been created in Dublin.
The Energia Group has made the announcement as part of a €3bn investment in renewable energy.
The roles will be filled over the next five years at the company's new offices in Blanchardstown.
CEO Ian Thom said: "They'll be roles in all sorts of things in terms of our organisation.
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"We work in renewable technologies, in customer solutions and in flexible generation.
"So we see principally those jobs arising in customer solutions and in the renewable technologies.