According to the article 'Save and prosper' (
Production Engineering, 15 September) 'the use of digital automation is claimed to boost the efficiency of coal-based electricity generation by more than 50 per cent.'
I think that someone is pulling our legs somewhere. I suspect that what the writer meant to say was that the use of ultra-supercritical steam conditions can boost efficiency of coal-based electricity generation by more than 50 per cent.
Alain Foote
Alstom, Rugby
Deep Heat: The new technologies taking geothermal energy to the next level
No. Not in the UK. The one location in the UK, with the prospect of delivering heat at around 150°C and a thermal-to-electrical efficiency of 10-12%,...