Rowett has been speaking to BBC Norfolk as part of a series of interviews with local party leaders ahead of next month’s local elections.
With 84 seats up for grabs, the Greens currently have four councillors.
While the party is traditionally in favour of renewables, she said she was opposed to “industrial scale energy infrastructure schemes” such as the East Pye development at a series of sites in and around Long Stratton, external, which covers 2,700 acres (1,090 hectares).
IGP is owned by the Australian firm Macquarie Asset Management.
“The basic thing is that these shocking schemes are [proposed by] foreign investors looking to make a profit out of our ridiculous energy prices,” said Rowett.
“It’s a huge profit margin for those who can get some renewable energy from our sunshine and take the profits offshore.”
She said countryside solar schemes should be smaller and locally operated, and called for a stronger drive for solar panels to be installed on rooftops of public and private buildings instead.