Costs of CSP

Investment Costs

The investment cost for a PT plant depends on the thermal storage and the capacity factor. The cost for aan PT plant are:

Thermal storage	Capacity factor	Costs in USD
No	20-25%	4,600-7,100/kW
4-6,5 hours	>40%	7,300-91,00/kW

The costs of a 50 MW PT plant with a storage capacity of 7.5 hours has an estimated cost of USD 364 million or 7280/kW. The costs can be broken down in to multiple elements:

• The solar field (510,000 m2) is 38,5% of the costs
• Support structure (10,7%)
• Receivers (7,1%)
• Mirrors (6,4%)
• Heat transfer system (5,4%)
• Fluid (2,1%)
• Thermal storage system is 10,5% of the costs
• Salt (5%)
• Storage tanks (2%)
• Power block, balance of plant and grid connections account for 14% of the costs
• Labor for 500 persons for the plan construction is 17% of the costs
• EPC and financing costs are 19,5% of the costs