Arch Insurance International has promoted Michael O’Neill to the post of onshore power and renewables underwriting manager as part of the company’s expansion of its open-market renewable energy property business.

In this role, the company said, Mr O’Neill is responsible for building out Arch’s global portfolio and leading the underwriting activities of its open-market renewables insurance business, spanning wind, solar and battery storage.

Previously, Mr O’Neill was a senior onshore energy underwriter, having joined Arch in 2020. Prior to this, he was an underwriter at StarStone Insurance.

Arch has also announced the appointment of Charlie Thomas as senior onshore energy underwriter.

He is responsible for supporting the development of Arch’s onshore energy portfolio and providing a broad range of solutions across both the conventional and renewable energy sectors worldwide.

Arch is part of Bermudian-based Arch Capital Group and includes Arch Insurance UK and the P&C insurance operations of Arch Insurance (EU) dac, as well as Arch’s insurance operations in Bermuda, Europe and Australia.