The Borg

The Borg is a Solar CITIES single IBC tank insulated with foam and modified with a double glazed window on one side facing south.

Finished building:  Thursday, 24 September, 2015


  • solar C³ITIES IBC


  • Home

Functional state: 

  • in progress

DIY or Commercial: 

  • DIY
Size:  1 000Liter


Hi Stefanie, could you give me some infos about the window? Is it a isolated barrier between the digester and the outer side - but letting the sun directly heat the digester? - websites & marketing