After taking Mona to the 11th Block, Yu Yuan headed to the 12th Block, where he met up with Erxiao and collected all the supplies for the Geothermal Well.
When he returned to the Hideout, every requirement for building the [Geothermal Well Plate Heat-Exchange Plant] had been met.
Yu Yuan immediately opened [Hideout Editing] and began expanding the Hideout.
He still had 1,160 square meters of unused space. He had saved it for just such an occasion.
And Erxiao had brought more than the Construction Supplies for the [Geothermal Well Plate Heat-Exchange Plant].
He had also brought Yu Yuan the Blueprints and documents he had found in the Geothermal Plant's office.
Several Optimization Paths among them were absorbed by the Virtual Light Screen.
--[Geothermal Energy Dual-Cycle Power Plant] Optimization Path
--[Geothermal Drying Room] Construction Path
--[Underground Drinking Water Well Plant] Optimization Path
--[Geothermal Hot Spring Room] Construction Path
Yu Yuan opened up Underground Level Five beneath Underground Level Four and set aside 400 square meters to turn it into a floor for plants and piping.
He intended to build not only the [Geothermal Well Plate Heat-Exchange Plant] there, but also the [Underground Drinking Water Well Plant].
The idea had come to him only after he saw that Optimization Path.
The [Underground Drinking Water Well Plant] was a level-three Optimization Path for the [Water Collector].
Yu Yuan had forgotten to consider where their water would come from once the extreme cold arrived. The sea would freeze, snow and ice would cover the land, and surface water sources would inevitably be hit hard.
Only underground water could guarantee their supply when the Cold Wave came.
They could melt snow for water when the time came, but now that he had a better solution, he naturally chose it.
The [Underground Drinking Water Well