The Government's new partnership with BlackRock Capital is set to fast-track the nation's transition to renewable energy.

BlackRock's investment fund is set to boost renewable solar, wind and green hydrogen energy infrastructure to eventually produce 100 percent renewable electricity.

Milford Asset Management analyst Deborah Lambie warns New Zealand's power grid is set to face more challenge and complexity as a result.

"We need significant investments and upgrading in our grid in order to support the electrification trend that we're seeing."

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