Announced details
Decommissioning of the Fukushima Daiichi Nuclear Power Station, internal surveys of the reactor primary containment vessel, and assessment of conditions in preparation for fuel debris removal
Video footage near the bottom of the reactor pressure vessel was obtained. A structure that may be part of the bottom of the reactor pressure vessel was directly imaged.
Used in this survey. Cumulative usage: Not disclosed.
The company’s microdrone was deployed in the internal survey of Unit 3’s primary containment vessel at Fukushima Daiichi conducted by Tokyo Electric Power Company Holdings,Incorporated. The drone was developed with support from Tokyo Electric Power Company Holdings,Incorporated.
Head office: Chiyoda-ku, Tokyo; Representative Executive Officer, President: Kobayakawa Tomoaki (小早川智明). Operates the Fukushima Daiichi Nuclear Power Station. Other details: Not disclosed.
Inside the primary containment vessel of Unit 3 at the Fukushima Daiichi Nuclear Power Station
Impact on financial results: Not disclosed.
The company does not address Contract Value / Offering price.
Tokyo Electric Power Company Holdings,Incorporated’s detailed survey materials (https://www.tepco.co.jp/decommission/information/committee/roadmap_progress/pdf/2026/d260326_27-j.pdf)
| Item | Details |
|---|---|
| Names of Products / Services Covered | Liberaware-developed microdrone and image-data analysis and point-cloud generation technology |
| Counterparty | Tokyo Electric Power Company Holdings,Incorporated |
| Counterparty overview | Head office: Chiyoda-ku, Tokyo; Representative Executive Officer, President: Kobayakawa Tomoaki (小早川智明). Operates the Fukushima Daiichi Nuclear Power Station. Other details: Not disclosed. |
| Relationship with the Company | The company’s microdrone was deployed in the internal survey of Unit 3’s primary containment vessel at Fukushima Daiichi conducted by Tokyo Electric Power Company Holdings,Incorporated. The drone was developed with support from Tokyo Electric Power Company Holdings,Incorporated. |
| Launch date | 5 March to 19 March 2026 (completed; survey period) |
| Applicable area | Decommissioning of the Fukushima Daiichi Nuclear Power Station, internal surveys of the reactor primary containment vessel, and assessment of conditions in preparation for fuel debris removal |
| Location | Inside the primary containment vessel of Unit 3 at the Fukushima Daiichi Nuclear Power Station |
| Quantitative Effects | Video footage near the bottom of the reactor pressure vessel was obtained. A structure that may be part of the bottom of the reactor pressure vessel was directly imaged. |
| Usage history | Used in this survey. Cumulative usage: Not disclosed. |
| Impact on Business Performance | Impact on financial results: Not disclosed. |
| Source | Tokyo Electric Power Company Holdings,Incorporated’s detailed survey materials (https://www.tepco.co.jp/decommission/information/committee/roadmap_progress/pdf/2026/d260326_27-j.pdf) |
Items this document does not state (7)
These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.
The reasons the company gives
The company's own explanation, not something inferred from the numbers.The survey was conducted to assess conditions deep inside the reactor in preparation for fuel debris removal, including areas that conventional equipment cannot easily access because of the narrow, dark interior of the primary containment vessel. With support from Tokyo Electric Power Company Holdings,Incorporated, a compact, lightweight drone equipped with the required functions was developed.