in 2014, bjarke ingels group was invited by the swedish city of uppsala to design a biomass cogeneration plant to supplement the region’s existing energy infrastructure during winter. with only seasonal use, the new facility would be vacant during summer months, allowing BIG to transform the public perception of a power plant both visually and functionally. the proposal fuses two industrial archetypes into an unconventional hybrid: the plant and the greenhouse. through harnessing the economies of scale associated with greenhouse structures it is possible to create an enclosure that lends the design a light and transparent quality. consequently, the crystalline volume serves as a colorful invitation for exploration and education.