MicroTurbine CHP Applications for Oil and Gas Industry

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1 MicroTurbine CHP Applications for Oil and Gas Industry January 2008 Lee Richards Director, O&G Sales

2 What is a MicroTurbine? Power generator driven by a small scale gas turbine Electrical efficiency of 26-33% Combined with CHP can achieve efficiency of 80%+ Wide range of fuels 325 btu to 2700 btu Extremely Low Emissions - <4 ppm CARB Load range of 0%-100% load Low Maintenance Cost High Availability Rate

3 Simple: One Moving Part One moving part: TurboGenerator shaft Air bearings No lubricants or filters Shaft Air cooled No coolants or pumps Spring Proven reliability >16 million hours of operation Variable speed from 45,000 to 96,000 RPM Air Foil

4 Performance C30 C65 C200 C1000 Rated Power 30 kw 65 kw 200 kw 1000 kw Full Load Efficiency 26% 28% 33% 33% Heat Rate 12,200 Btu/kWh (12,800 kj) 11,000 Btu/kWh (11,600 kj) 10,300 Btu/kWh (10,900 kj) 10,300 Btu/kWh (10,900 kj) Liquid Fuel D2, 1-K, Jet A, JP- 8, JP-5 D2 In Development In Development Gas Fuel (HHV) Btu/scf Btu/scf TBD TBD Output Current 46 Amps RMS 100 Amps RMS 310 Amps RMS 1550 Amps RMS Nominal Voltage 400 to 480 VAC 400 to 480 VAC 400 to 480 VAC 400 to 480 VAC Exhaust Energy 310,000 Btu/hr 561,000 Btu/hr 1,350,000 Btu/hr 6,750,000 Btu/hr Exhaust Gas Temp 530 F (275 C) 588 F (309 C) 535 F (280 C) 535 F (280 C) NOx Emissions Gas : <9 ppm Liquid : <35 ppm 5 ppm Nominal <9 ppm Guaranteed <4 ppm CARB 5 ppm Nominal <9 ppm Guaranteed <4 ppm CARB 5 ppm Nominal <9 ppm Guaranteed <4 ppm CARB Acoustics 65 dba 65 dba 65 dba 65 dba

5 Pipeline Experience Pemex 35 Units in Offshore Operations Dominion Gas Transmission 29 Units in Gas Transmission Tuscarora Gas Transmission 13 Units in Gas Transmission Petrobras 65 Units in Gas Transmission Gazprom Sakhalin Pipeline 21 Units in Gas Transmission More than 60 O&G customers worldwide C C30 C60/65 Total Units Sold >4375 O&G Installations >405

6 MicroCHP: Less Fuel, Less Waste 150 kw fuel Traditional Approach 120 kwth 80% av. boiler efficiency 30 kw waste Capstone ICHP 230 kw fuel 65 kwe 120 kwth 345 kw fuel 195 kw fuel 65 kwe 160 kw waste 33% av. utility efficiency 130 kw waste 40 kw waste 54% average total efficiency 3.4 lb/mwh NO x & 2,320 lb/mwh CO 2 80% average total efficiency 0.15 lb/mwh NO x & 1,540 lb/mwh CO 2 Source: EPA and DOE, see notes page for specific references

7 CHP Environmental Benefits Compared to avg US utility power NOx Savings 600kW with CHP 321 Cars Removed from the road CO2 Savings 600kW with CHP 438 acres of pine and fir forest equivalence

8 Integrated Heat Exchanger 21 Deg F Rise Up to 480,000 BTU/hr 40 GPM Flow rate

9 Direct Heat Capstone MicroTurbine and heat exchanger operating at a Pennsylvania plant

10 Exhaust Heat Utilization Preheat fuel gas to larger turbines or engines Preheat water to steam boilers or keep steam hot Direct heat to oil/water separators Supplemental heat to regas LNG or other liquid regas process Building or utility heat Various gas plant and amine plant applications Refrigerant based systems

11 Gas Pipeline Installations Primary Compression Station Power with CHP Dominion Transmission, VA Three C30s provide prime power Exhaust heat for hot glycol Six other Dominion Transmission compressor stations currently run MT

12 Exhaust Heat Utilization Heat from two C30s running on untreated wellhead gas goes to heater/treater separator Microturbines also generate voluminous exhaust heat (2) C30s providing 600,000 btu/hr at 530F

13 Gas Plant Processes Heat to glycol for Dehydration process Amine regenerator Direct heat to Mol sieve in mercury removal Fractionation train for deethanizer

14 TurboGenix System Description Organic Rankine Cycle (ORC) Condenser 125kW Expander-Generator 3-Phase Electricity Vapor Heat Exchangers 1. A pump circulates the working fluid through a heat exchanger, where it is exposed to the waste heat source. 2. That heat converts the working fluid from liquid into saturated vapor. 3. This vapor is then expanded across an expansion turbine, which is directly coupled to a high-speed generator (no gearbox). Pump Host Company Liquid Existing Heat Sources 4. The working fluid is then cooled, returning it to liquid state, where the cycle is then repeated.

15 Capstone-TurboGenix Beta BioEnergy Fueled System located in Germany

16 Conclusions Ideal power generation for oil & gas installations, onshore and offshore When used with CHP, +80% can be achieved Reduced utility cost from heating sources Gas from 325 BTU 2700 BTU with up to 7% H2S Lowest emissions of <4 ppm NOx Lowest maintenance cost of $/kwh with 6 hours/year of planned maintenance No lubricants or coolants