EPC and O&M Proposal for 12MW Biomass based Integrated Gasification Combined Cycle(IGCC) Power Plant

(This presentation was prepared for an EPC contractor for presenting to management in the year 2003 as a part of proposal)

The Project

12 MW Integrated Gasification Combined Cycle Power Plant

Project Profile

  • Gross Generation – 12.0 MW(Site Conditions)
  • Plant Configuration – Gasifier + Gas Filter + Gas Turbines + HRSG + Steam Turbine and associated Balance of Plant Equipment
  • Location – Andhra Pradesh.
  • Fuel – Wood & Woody Waste, Coconut / Oil Palm Leaves & stems, Oil Palm Bunch & Fiber, Coconut Fiber (Fuel samples tested in the gasifier at the laboratories in Finland.)
  • Fuel Source – Agro Waste from Fields and Agro based industries in an area of 12 mandals within 25 km radius (Survey done)
  • Ash – Land filling and as manure
  • Water Source – Bore well water (Soil Investigation has been done)
  • Land – about 57 acres of land already procured
  • Power Evacuation – 132 kV level To APTRANSCO (PPA has been signed)

Project Financing

  • Project Cost – Approx. 20 Million US$
  • Financing – Yet to be tied (Promoter claims that he has got in-principle sanction from Bank)
  • Sponsor’s equity in place
  • MNES subsidy is expected on successful commissioning which will meet the escalation cost
  • Better IRR for a 15 year period and will improve once recent amendments of tax benefits are utilized
  • A comprehensive package of insurance coverage is being provided to the satisfaction of the lenders
  • CDM benefits

The IGCC Process
The Technology for the Future

Worldwide IGCC Installations/Constructions

Biomass Fuels

Biomass proposed to be used in the IGCC Power Plant

Biomass Handling System

Engineering, Procurement & Construction (EPC)

Scope of EPC

  • Total Engineering, Supply, Erection, Testing and Commissioning of IGCC Plant including Gasifier, Hot Gas Filter, Gas Turbines, HRSG, Steam Turbine, Biomass Storage &Handling System and associated Balance of Plant systems
  • Project Management Activities pertaining to EPC
  • Clearances like IBR, Electrical Inspectorate Clearance etc.
  • Performance Guarantees including Power Output, Heat Rate, Auxiliary Power Consumption, Plant Availability
  • Construction Power & Water
  • Supply of 2 years operating spares for the plant
  • Unit characteristic test demonstration as per PPA
  • Completion of Plant Erection and start up in 18 Months and trimming and fine tuning to achieve rated performance within next 6 months.
  • Liabilities for non-performance including the risk related to Gasfier, Hot Gas Filter and Gas Turbine
  • Bonus Clause is there for better performance

EPC Risk – Technology

  • IGCC technology for Indian fuels and conditions not yet proven in a commercial plant
  • Gasifer for biomass is proven in non-commercial pilot plant (Varnamo biomass demonstration 6 MW IGCC Power Plant, Sweden)
  • Biomass preparation and handling
  • Gas turbine integration in a commercial biomass plant is not yet proven
  • Performance of Hot Gas Filter for biomass fuel
  • Availability guarantees as expected by the promoter 8000 hrs (more than 90%) for the Indian biomass fuels in IGCC route is to be reviewed
  • Extra exposure to liabilities due to the account of Gasifer, Filter and Gas turbine supplier non-performance

Other EPC Risks & Mitigating Factors

  • Cost Overruns – Fixed price EPC construction contract; all change order to be approved;budgeted contingency
  • Construction Delay- LD for delay in completion; budgeted contingency
  • Plant Performance – Stringent LD clause for the sub-contractors
  • Force Majeure – Risk Insurance
  • Project Defects – Trimming period of 6 months and 1 year warranty period

Operation and Maintenance (O&M)

Scope of O&M

  • Involvement during the commissioning of the plant for the smooth takeover
  • Complete Operation and Maintenance of the facility from takeover
  • To Provide adequate trained man power for O&M
  • Development of O&M management system
  • Preparing an annual operating plan
  • Developing monthly power generation report
  • Planning of shut down and maintenance schedules
  • Attending Minor/Major breakdown of power plant equipment
  • Attending to unscheduled maintenance as and when required
  • Major and Minor Overhauling of Power Plant equipment & auxiliaries

Obligation of the Promoter for O&M

  • Providing all tools & tackles including special tools, Welding & Gas cutting equipment, workshop facilities, Chemical lab, Testing instrument & equipment
  • Providing Fuel, Water, Compressed Air, Spares and all consumables
  • Providing Furnished Office with required facilities including plant communication system
  • Providing Free furnished accommodation, Boarding and local transport to O&M staff
  • All Statutory formalities for operating the plant
  • Providing secure on-site warehousing facilities for tools and spare parts
  • Unskilled personnel

O&M Risks & Mitigating Factors

  • Plant Availability – To be addressed carefully because of Technology Risk
  • Plant Output –
  • Plant Efficiency – Preventive Maintenance
  • Force Majeure – Risk Insurance
  • Environmental Compliance – Project designed to meet environmental regulations; no unusual high-risk environmental considerations
  • Fuel Supply – Farm insurance contemplated, Alternate fuel (Coal, RDF & HSD) supply considered

O&M Cost

  • The compensation for O&M shall be based on of annual turnover on a minimum guaranteed exportable power of 86.5 million units.
  • The above compensation is excluding the cost of spares.
  • The liability for not meeting the minimum generation is 5% of generation cost with a maximum cap of 15 % of annual turnover.
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