Tsubonuma of Shibuya Fertilizer, a participant in the second cohort of “CIRCULAR STARTUP TOKYO,” supports the “Air Conditioner Unit Sweet Potato Greening System,” an initiative carried out on the rooftops of office buildings managed by Tokyu Land Corporation. This initiative is part of Tokyu Land Corporation’s environmental efforts, focusing on three key issues: decarbonization, circular economy, and biodiversity.
The “GREEN ACTION Rooftop Sweet Potato Harvest Experience” was held at the Unosawa Tokyu Building in Shibuya, Tokyo. An event report was published on “GREEN WORK STYLE,” a platform operated by Tokyu Land Corporation.
Scenes from the “GREEN ACTION Rooftop Sweet Potato Harvest Experience.”
Harvested sweet potatoes processed into sweet potato chips.
The report details the sweet potato greening system, its energy-saving benefits, and the lively harvesting experience. Read the full article on “GREEN WORK STYLE” at the link below.
*The air conditioner unit sweet potato greening system is a technology jointly developed by Nikken Sekkei Ltd. and Sumitomo Corporation. By growing sweet potato vines around air conditioning outdoor units, the system leverages shading effects and transpiration to lower the surrounding temperature, thereby reducing air conditioning power consumption. This technology was patented in 2016.
[Reference] “[Event Report] GREEN ACTION rooftop vegetable garden sweet potato harvesting experience—enjoying the blessings of nature through Tokyo Land Corporation’s ‘sweet potato greening’ initiative” | GREEN WORK STYLE (in Japanese)