This year the owners of the remaining 9 UK coal fired power stations which are not to close by 2016 or convert to Biomass will have to make far reaching decisions by the end of the year. They must decide whether to upgrade their stations to reduce pollution, convert to biomass or close by 2023 or when they have used up a 20,000 hour allowance.Meanwhile the UK Coal indusrty, ever more reliant on op…