German glass and plastic packaging firm Gerresheimer AG (<a href="https://www.boerse-frankfurt.de/equity/gerresheimer-ag" target="_blank">ETR:GXI</a>) has contracted some 35 GWh of wind power annually for its sites across the country from renewables developer PNE AG (<a href="https://www.boerse-frankfurt.de/equity/de000a0jbpg2-pne-ag" target="_blank">ETR:PNE3</a>).