The video of the half day meeting is now on the Royal Academy of Engineering website.
I did ask a question about how long it would take for PRISM reactors to fully burn-up the UK's plutonium waste so that the final waste product only contained short half-life fission products (with the aim that the end-product waste reduces to the radioactivity of the original uranium fuel within a time frame of 300 years or so). This may have been inaudible as I am not a good public speaker and has been edited out of the video.
Here is NDA's current view of the GE Hitachi PRISM which my question built upon as I felt this was not accurately reflected in the outlook for the reactor technology that was presented by the speakers.
"Alternatives to re-use of plutonium as MOX fuel"
"The GEH proposal relates to a UK deployment of its PRISM reactor as part of an integral fuel fabrication/reactor plant solution for Plutonium disposition. The engagement is focused on assessing the technical and commercial credibility of the approach, noting that the technology proposed is not currently included in the NDA credible options."
GE Hitachi is actively lobbying behind the scenes to get this assessment changed.
As far as I can see GE Hitachi is wasting its time in trying to do this, because there will be unavoidable and considerable costs associated with the solid fuel reprocessing for input flows into reactor and for output flows from the reactor.
To get to 300 year waste will require an unspecified number of irradiation cycles through the fast reactor. This waste burning process will process be extremely inefficient and therefore end up being ridiculously expensive for what it can achieve in terms of reducing the costs of long term waste storage.
I note this because the NDA has told me very clearly that it will not be reconsidering alternatives to re-use of plutonium as MOX fuel any time soon, even though there is no MOX plant and no reactors to burn it in (and this is most certainly true in regards to the role Molten Salt Reactors may play in reducing the UK's plutonium stockpile to fission product waste that only needs storing for a few hundred years rather than thousands of years).
A brief comment I made on the nature of the proposed 3rd generation Nuclear build programme has been edited out as well presumably because it was inaudible.
An earlier question of mine to DECC's Chief Scientist David Mackay (at around 19 min 45 sec in) on how fourth generation developers might communicate with government was also edited out, even though the answer to the question was kept in.