GCube, a provider of insurance services for the renewable energy sector, has appointed Al Caceres to lead the firm's underwriting practice as new senior vice president of underwriting covering all renewables, and Michael Durning as executive vice president of client relations and business development.

Prior to GCube, Durning was most recently vice president with Aegis Insurance Services where he was responsible for business development, member and broker relations and transmission and distribution line coverage.

Durning held executive positions with Marsh, as senior vice president of power and utility, vice president with Nuclear Electric Insurance and Conventional Underwriting (NEIL ) and vice president of marketing and vice president of underwriting with Hartford Steam Boiler’s HSB Energy division.

Caceres was most recently with Aegis Insurance Services as a senior property underwriter, responsible for underwriting operational and construction projects for power and utility, oil/gas, petrochemical companies and renewable energy projects including wind, solar and ethanol plants.

Previously, Caceres worked at AIG – World Source Property as assistant regional manager and at Starr Technical Risks Agency as senior property underwriter.

GCube Insurance Services president John McLane said Michael Durning will be leading the business development team with goal of strengthening and expanding the relationships with brokers and their clients. Al Caceres will be leading the underwriting and account management teams.