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Louis Fitzgerald

Stillorgan financier Louis Fitzgerald (66) helped Eddie O’Connor raise €630,000 for a small renewable energy firm in 1998.

Ten years later, Airtricity was sold for almost €2bn. While the original founder investors had been heavily diluted, they still made a huge return. Fitzgerald also teamed up with O’Connor’s Mainstream Renewables, which sold a 25pc stake to a Japanese trading house for €100m in 2013. Green energy valuations have dipped.

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