The Netherlands’ biggest wind farm – 85 kilometres off the cost of Groningen – will be formally opened on Monday afternoon, broadcaster NOS said.

The Gemini wind farm comprises 150 wind turbines and will generate enough electricity for 785,000 households. Work on the wind farm began in 2015 and the project has cost €2.8bn to complete.

The Netherlands already has three other offshore wind farms, generating combined power of almost 360 megawatts. The Gemini project produces 600 megawatts a year.

The cabinet has given the green light to developers for five more offshore wind farms in the coming years. The government hopes 16% of Dutch energy needs are produced by sustainable means by 2023.