In the 2009 European Parliament election, even though the European Parliament was reduced in size, the EGP member parties won 46 seats, the best result of the Green Parties in 30 years.
Dalam pemilihan Parlemen Eropa 2009, meskipun Parlemen Eropa berkurang ukurannya, partai-partai anggota EGP memenangkan 46 kursi, hasil terbaik dari Partai Hijau dalam 30 tahun.