The 10 GW solar manufacturing tender opened by Germany’s Federal Ministry for Economic Affairs and Climate Action (BMWK) continues to bear fruit, this week with a consortium announcing its plans for a fully-verticalized solar factory. The three companies involved are module maker Heckert Solar, module distributor Wattkraft, and solar glass maker Intefloat, all German, although Intefloat was acquired by India’s Borosil Renewables in 2022. Heckert Solar will have its Thuringian module factory expanded from 400 MW to 2.8 GW, while another Heckert Solar facility in Frankfurt am Oder will see 5 GW of polysilicon, wafers, and cells. Lastly, Intefloat will expand its glass production at a site in Brandenburg. If you’re wondering how a simple product like glass can compete…