Sir - Your leader Going nuclear fails to address the real issues. The debate is not about focussing on the principles of power generation, as you assert.

Nuclear power, or indeed renewable energy, won't make any difference to our energy security in the next 20 years. What will make a difference - which you completely ignore - is a serious commitment to energy efficiency in our homes, commercial and industrial premises.

Japan uses half the energy per head that we do, while enjoying a similar standard of living, and German and Scandinavian energy efficiency puts us to shame despite their harsher climates.

They know that this is the best way to reduce carbon emissions. Massive investment in nuclear power without serious policies to reduce demand is like pouring water into a bucket with a large hole in the bottom. Until we sort that out, nuclear power is a waste of money.

Martin Stott Oxford