James Shaw has confirmed he will contest the Green Party's co-leadership after being ousted from the role.

"I am in it to win it," Shaw told reporters saying he had spoken to party members and family and had decided to stand again as Green Party co-leader.

Shaw made the announcement after failing to get the 75 per cent votes of delegates at the party's online annual meeting at the weekend to be reconfirmed in the role. Co-leader Marama Davidson was reconfirmed by delegates.

This opens up the co-leadership role this week to challengers.

Former communications and policy director to the Green Party David Cormack joins Nick Mills to analyse the situation.

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