Grenville is the Chief Executive of the New Zealand Wind Energy Association.
He has a background in the energy industry, the finance sector and Crown organisations. Grenville was previously CE of Public Trust and prior to that held several leadership roles with Meridian Energy as Director Retail and Director New Zealand Operations. He has experience in asset management, production, trading and retail activities including operational responsibility for wind farms. Prior to joining Meridian, Grenville spent 12 years in the finance sector with executive positions at the Rural Bank and National Bank.