The House of Lords Science & Technology Committee is taking evidence of the state of nuclear R&D capability in the UK. Tony Roulstone, with the input of members of the CNEC, has submitted evidence which argues that current levels of R&D have fallen below what will be required for the planned UK investment in new nuclear power. Also, there are opportunities for the UK to capitalise on the plans of the many other countries who are interested in nuclear power. If the Government is to reverse its recent stance of no significant funds for nuclear capability and research, there needs to be a debate about objectives and priorities. The case is made for investing in the development of thermal reactors technology to provide benefit to the UK in the period up to 2050.