20.7 MW Wind Turbine in Jamaica

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By : Ali Raza & Nematullah Wafa

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Clean Energy Technology Analysis using RETScreen

Table of Contents:

• Introduction
• Location
• Facility Information
• Energy Model
• Cost Analysis
• Emission Analysis
• Financial Analysis
• Risk Analysis
• Conclusion
• Recommendations
• References

Introduction:

• 20.7 MW wind farm in the southwestern part of Jamaica to be sold to the local utility.
• Meteorological towers have been installed on the site for the past several years, and measurements at 50 m indicate average wind speeds of 8.3 m/s
• The wind farm land is leased to the developer for a 20-year period
• The sale of wind-generated electricity to the local utility at a price of US$0.056/kWh (5y), and US$0.05051/kWh (15y).
• GHG emissions reductions are sold for US$10/tonne of CO₂; the vast majority of the Jamaican electricity supply is generated from oil-combusting power plants.
• A commercial loan for US$16 million
• US$3.2 million in equity, and a grant of US$7 million
• Debt interest rate is 14%, the debt term is 15 years, their discount rate is 15%, they expect an inflation rate of 10%,

Location:

• Facility location : 750 m

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• 900 to 1,000 meters above sea level

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• Average Ground wind speed : 4.7 m

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• Weather : Extremely hot and humid

Jamaica - Norman Manley/Kingston

Location:

Best Months:

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May

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June

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July

Facility:

• Benchmark – Power plant

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• Wind Turbine

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• Production goal : 20.7 MW

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Energy Model:

Energy Model:

Energy Model:

Energy Model:

Cost Analysis:

Cost Analysis:

Emission Analysis:

Emission Analysis:

Financial Analysis:

Financial Analysis:

Financial Analysis:

Year 15

Risk Analysis:

Risk Analysis:

Conclusion:

• Jamaica is prone to Hurricane and earthquake zone
• Tropical model class 1 turbines used -rated up to a maximum of 69 m/s(248 km/h)
• Disaster Management
• Hurricane warning systems
• Hurricane Shutdown Start up procedures

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Conclusion:

• Enable factors:
• a good wind resource,
• the availability of a capital grant to offset initial costs,
• the price negotiated for the energy generated from the site,
• the nearby port,
• and the low-cost availability of land.
• The possibility of selling carbon credits from annual emissions reductions will provide additional benefits to projects of this type, making them more financially attractive.
• MIRR (18.6%) > Discount Rate (15%), Benefit-Cost ratio (1.8) > 1

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Installed Wind Turbine (Jamaica):

References:

• Feasibility - Power plant - Wind turbine – 26.7 MW Jamaica
• Database RETScreen Clean Energy Management Software

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THANK YOU