Fukushima Daiichi: Unit 1 pressure remains high, but stable

25 March 2011, 05.15 UTC  IAEA has issued the latest update on the current situation at Fukushima Daiichi.

Unit 1

Lighting in the Unit’s main control room has been restored as of 24 March.

Pressure in the reactor vessel remains high, but has stabilized.

Preparations are underway to replace sea water injection with fresh water.

Unit 2

TEPCO is working to restore lighting and coooling systems.

Preparations are underway to replace sea water injection with fresh water.

Unit 3

TEPCO was attempting to restore cooling and other equipement, but it had to suspend these activities when it was found that three workers were exposed to high levels of radiation in the turbine room on 24 March.

Preparations are underway to replace sea water injection with fresh water.

Units 5 and 6

At Units 5 and 6, repair of the temporary pump for Residual Heat Removal (RHR) was completed as of 24 March, and cooling resumed shortly thereafter.

Common spent fuel pool

Power was restored as of 24 March, and cooling resumed shortly thereafter.  Work is under way to restore the lighting and instrumentation systems.

As of 24 March, 09:40 UTC, the water temperature of the pool was around 73 °C.

Geoff Zeiss

Geoff Zeiss

Geoff Zeiss has more than 20 years experience in the geospatial software industry and 15 years experience developing enterprise geospatial solutions for the utilities, communications, and public works industries. His particular interests include the convergence of BIM, CAD, geospatial, and 3D. In recognition of his efforts to evangelize geospatial in vertical industries such as utilities and construction, Geoff received the Geospatial Ambassador Award at Geospatial World Forum 2014. Currently Geoff is Principal at Between the Poles, a thought leadership consulting firm. From 2001 to 2012 Geoff was Director of Utility Industry Program at Autodesk Inc, where he was responsible for thought leadership for the utility industry program. From 1999 to 2001 he was Director of Enterprise Software Development at Autodesk. He received one of ten annual global technology awards in 2004 from Oracle Corporation for technical innovation and leadership in the use of Oracle. Prior to Autodesk Geoff was Director of Product Development at VISION* Solutions. VISION* Solutions is credited with pioneering relational spatial data management, CAD/GIS integration, and long transactions (data versioning) in the utility, communications, and public works industries. Geoff is a frequent speaker at geospatial and utility events around the world including Geospatial World Forum, Where 2.0, MundoGeo Connect (Brazil), Middle East Spatial Geospatial Forum, India Geospatial Forum, Location Intelligence, Asia Geospatial Forum, and GITA events in US, Japan and Australia. Geoff received Speaker Excellence Awards at GITA 2007-2009.

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