Led by The Climate Group and CDP, the initiative aims to accelerate the global transition towards a net-zero emissions economy.
In addition to designing, manufacturing and managing products to generate clean energy, Vestas also aims to reduce the environmental impact of its factories and other sites.
It already gets all of its electricity supply from renewables and has committed to keep this going as it expands its operations and requires more power consumption.
The firm says it is keen to influence other RE100 members on how to create supportive policies and frameworks for renewable energy in the future.
Morten Dyrholm, Vestas Group Senior Vice President of Marketing, Communications and Public Affairs, said: “The private sector is increasingly committed to meeting the challenges of climate change through the use of renewable energy and so is Vestas.
“RE100 underlines our joint efforts to make renewable energy an easy choice for companies, because it’s the right thing to do for the planet and because it makes economic sense.”