MAN engines supporting Wind power EAPIC, Nairobi, 2 nd September 2010

Transcription

1 MAN engines supporting Wind power EAPIC, Nairobi, 2 nd September Susanne S. Bech Managing Director MAN Diesel & Turbo Kenya Ltd. < 1 >

2 Table of contents 1. MAN Diesel & Turbo Update on the strong merger within the power business 2. Wind integration in large power systems Engines supporting wind power 3. Worldwide biggest Wind Diesel Project Bonaire Case study < 2 >

3 Rudolf Diesel ( ) First marketable Diesel Engine (1897) built at the Maschinenfabrik Augsburg Nürnberg < 3 >

4 MAN SE Group Group MAN SE Business Commercial Vehicles Power Engineering Division MAN Nutzfahrzeuge MAN Latin America Sinotruk (25%) MAN Diesel MAN Turbo RENK (76.6%) Revenues 2009: 6.4 b Revenues 2009: 1.4 b * Revenues 2009: 2.5 b Revenues 2009: 1.3 b MAN Group 2009*: Revenues 12.0 b ; 47,700 Employees * April-December 2009 < 4 >

5 Sites Worldwide Locations MAN Diesel Locations (77) MAN Turbo Locations (34) < 5 >

6 Engines Supporting Wind Power Source:Climatechangesocialchange.wordpress.com 2010 < 6 >

7 The unsolved problem The wind blows wherever it pleases. You hear its sound, but you cannot tell where it comes from or where it is going. John the Apostle 3:8a < 7 >

8 The challenge Limited predictability h forecast Example E.ON control area data as of April, 21 th 2004 It is hard to tell when the wind will be blowing MW feed-in [MW] Forecast Tools wind energy feed-in + Balancing Power 00:00 h 03:00 h 06:00 h 09:00 h 12:00 h 15:00 h 18:00 h 21:00 h 00:00 h Source: Dr. C. Schneller, E.ON Netz GmbH 2007 < 8 >

9 The challenge Limited predictability Proportion of wind power in grid peak load (%) From 32% max. wind penetration to zero during one day MW wind power installations in the E.ON grid The wind blows when it wants Source: E.ON control area data as of April, 21 th 2004 Back-up and fast ramp-up capacity is needed Jan Feb Mar April May June July Aug Sept Oct Nov Dec < 9 >

10 New requirements for high share of wind power in a power system Call 1: More back-up capacity Minimum feed-in 2007 in E.ON grid: 26 MW, max. feed-in 7569 MW -> Wind power hardly substitutes conventional base-load capacity. The result would be lower efficiency and dramatically increase of CO2 emissions of base-load plants in load-following operating. Call 2: Balancing power is needed Forecast error rises with wind power capacity Growing need for balancing power -> More fast reacting generation units with a high efficiency and low part-load emissions are needed < 10

11 The unsolved problem MW Grid load curve Fluctuating feed-in Needed dispatch power Additional power for storage Time The intermittency of renewables, and wind in particular, demands flexibility of response for operating from other suppliers on the grid < 11 >

12 Balance the power..and support the grid < 12 >

13 Balancing the fluctuating feed-in New markets for reserve capacity Operating reserve is the generating capacity available to the Transmission System Operator (TSO) within a short interval of time to meet demand in case a generator goes down or a frequency drop. E.g. When in Denmark the wind speed drops by 1m/s the TSO s needs to find an additional 350 MW of regulating power capacity < 13 >

14 Technology comparison for grid servicing Ramp performance Thermal efficiency (%) Ramp-up time from % (min.) Ramp-up and down (in %/ 5 sec.) Engine Simple cycle Gas Turbine Simple cycle Boiler plant Super critical Engine Combined cycle Gas Turbine Combined cycle (CCGT) Hydro power Pelton or Francis Not possible Engines and gas turbines are the technical best-case solutions to meet the requirements for grid servicing (Hydro is best-case in renewable source) < 14 >

15 Technology comparison for grid servicing Spinning reserve Engine Simple cycle Gas Turbine Simple cycle Boiler plant Super critical Engine Combined cycle Gas Turbine Combined cycle (CCGT) Hydro power Pelton or Francis Part load efficiency (-10%) 45 (45) (33-38) 30 (38-40) 52 (52) 52 (55) - Part load efficiency (-20%) Not possible Part load efficiency (-30%) Not possible High part-load efficiency is the main driver for less CO2 emissions < 15 >

16 Wind Diesel Power Management System Control and operating data flow for a wind farm and a engine plant MAN Power Plant Control Syst. Wind - Diesel Power Management System Wind farm Engine power plant End-consumer - Grid parallel or single island grids End -consumer will get a high quality of electricity in case of current and frequency. < 16 >

17 Wind Diesel Power Management System Wind Park Data Wind speeds, direction, prognosis Wind park electrical power output Engine Power Plant Data Engine power plant output Engine loads, engine availability Reserve capacity Set point for optimised engine operation Wind - Diesel Power Management System Consumer and Grid Information Grid data (voltage, frequency, load power, reactive power, ) Power demand forecast < 17 >

18 Wind - Diesel main objectives For grid parallel mode Fluctuating power supply from wind plant Constant power supply to national grid system to be achieved Diesel or gas engines - to fill up the gap between constant power delivery and wind power supply - to deliver el. power quality as needed i.e. in regards of power factor Deliver a predictable power supply with wind energy Offers a wide range of business cases for IPP Profits from grid servicing (ancillary service, peak shaving,.) < 18 >

19 Wind - Diesel main objectives For isolated grids Fluctuating power supply from wind plant Fluctuating electrical power demand from consumer side Diesel or gas engines - to fill up the gap between demand and wind power supply - to control island grid frequency - to control island grid voltage, Cheep, secured and reliable electric power production Fuel savings and emission reductions Stable island grid quality Picture: WKN AG < 19 >

20 Wind Diesel Project Bonaire Benchmark for a island grid Isolated Island Grid < 20 >

21 Wind Diesel Project Bonaire Benchmark for a island grid Bonaire, Netherlands Antilles Worldwide biggest Wind Diesel installation Area 288 km². Population approx Electricity consumption MWh/year Peak demand: 11 MW.5.3 MWh/capita < 21 >

22 Main goals of a Wind Diesel System Case: Fluctuating power supply from a wind plant Fluctuating electrical power demand from the consumer side Solution: Diesel or gas engines -..fill the gap between demand and fluctuating wind power feed-in -..control island grid frequency and voltage Benefit: Economic efficient, secure and reliable electric power production with fuel- and emission reduction Stable island grid quality Source: WKN AG < 22 >

23 Wind Diesel Project Bonaire Benchmark for a island grid The planner s target is to become the first CO2 neutral islands (Scope of supply) 12 wind turbines, 900 kw el each. 5 x MAN Diesel engines, each 2.5 MW to be operated on bio fuel (first imported certified vegetable oil, later self produced algae oil) 3x backup high speed generators with 3 MW. Saft Battery System with 3MW. Wind Farm 11 MW The challenge in this kind of projects Small and isolated grids Often based on diesel power generation only With increasing oil prices > high electricity prices Highly dependent of mainland supplies Diesel power plant 12,5 MW near Bopec < 23 >

24 Wind Diesel Project Bonaire Benchmark for a island grid Source: MAN Diesel & Turbo SE 2010 < 24 >

25 Wind Diesel Project Bonaire Benchmark for a island grid MAN Diesel four-stroke engine, type 9L27/38 5 x 9L27/38 engine running on bio fuel and oil derivate Rated power output 2.5 MWe per engine (in total 12.5 MW) Speed: 750 rpm (50Hz). < 25 >

26 Wind Diesel Project Bonaire Benchmark for an Isolated Grid 11 MW Wind Turbine solution Enercon E-44 Rated power: 900 kw each Hub high: 55 m Rotor diameter: 44 m Swept area: 1,521 m 2 Turbine concept: Gearless, variable speed and variable pitch control cut-in wind speed 2 m/s cut-out wind speed m/s Source: Enercon < 26 >

27 Wind Diesel Project Bonaire Benchmark for a island grid At site conditions for Wind Power First Enercon wind turbine in operation, since July 2007: 4600 FLH, 99% availability- excellent at site conditions Source: Evelop 2009 < 27 >

28 Wind Diesel Project Bonaire The Right System Design Main Drivers: Wind power penetration level and the existing power system Source: MAN Diesel & Turbo 2010 and Drouilhet 2009 < 28 >

29 Wind Diesel Project Development Turnkey Diesel approx.1600 USD/kW el and Wind power 2700 USD/kW el < 29 >

30 Wind Diesel Project Development Success Criteria Economical Profitable long-term Power Purchase Agreement (PPA e.g.15 to 20 years) Good line of credit Clear understanding of the system and project design Technical Good wind regime Good quality of wind measurements Profound knowledge of system loads (average demand, peak, outlook) Highly efficient Diesel equipment Highly skilled and motivated personnel < 30 >

31 Wind Diesel Project Development Close cooperating with international acting Wind companies Support in generating additional income with CDM Projects and Carbon trading MAN Wind Diesel Projects Support in financing. MAN helps you in project financing World market leader in Diesel engines < 31 >

32 The Wind Diesel Project Bonaire Start for Bonaire into a sustainable future Pictures: MAN Diesel & Turbo Canada < 32 >

33 Thank you very much < 33 >

34 2010 Q&A Session

35 Efficiency Comparison at ISO 3046 Thermal efficiencies % Low speed diesel engine 50 Low speed diesel engine in combined cycle Combined cycle gas turbine Medium speed diesel engine Gas turbine Steam turbine Unit capacity (MW)