The prospects for HELE power plant uptake in India
The study concluded that there are likely to be significant gains to be had from adopting a HELE pathway and a deeper analysis of the Indian situation was warranted. This report presents the results of that analysis.
India’s coal fleet is relatively young, predominantly subcritical but with a large tranche of future capacity planned or under construction. However, the future capacity that is planned is largely supercritical, rather than the current state-of-the-art ultrasupercritical technology that has been extensively proven in other countries. Indian projections and current policy seem to indicate that this trend will continue in the near future. This would seem to be a missed opportunity for India to ensure that she has the most efficient and modern plant to drive her economic growth; lower efficiency plant built in preference to the best HELE alternatives now would be ‘locked in’ to the generating sector for the lifetime of that plant, which could be as long as forty years.
The choice of subcritical, and now supercritical plant, over more advanced options is attributed to a cautious and conservative approach, gathering ‘home grown’ experience on plant performance and maintenance in the light of challenges posed by India’s high ash coal resource. While this was undoubtedly a reasonable approach where power generation technologies were developed and built using regional skills and facilities, in the modern globalised power market significant experience exists in dealing with a wide range of coal types and manufacturers are prepared to design and offer high performance plant to burn even the most difficult coals, with full commercial guarantees. Fortunately, recent developments show that the Indian market is becoming more receptive to ultrasupercritical as the technology of first choice, and the recent initiative on AUSC development is promising, but there is still much to be done to avoid the Indian coal fleet becoming locked into mainly supercritical plant.