The document provides a breakdown of the estimated investment costs for a 50 MW parabolic trough concentrated solar power plant with 4 hours of thermal energy storage, totaling 14.5 crore rupees per MW or 100% of costs. The largest portions of costs are the solar field at 24% of costs, power block at 12%, storage device at 8%, and allowances and project finance each at 8-11% of costs. The cost breakdown is categorized into 13 components including the solar field, storage, power block, balance of plant, land development, civil works, labor, electrical infrastructure, project management, and contingencies.

1. Investment Cost Break-up of a 50 MWp CSP Plant with Storage
Parabolic Trough
SN Description of Works Head Rs. Cr/MW %
1 Solar Field including Mirrors, Structure Supports, Hardwares, Solar Field 3.50 24.14%
Steam Piping, Heat Collecting Elements etc.
2 Storage Device (4 Hours) Storage Device 1.20 8.28%
3 Allowances - R&D, Interface & Engg., Solar Observatory, Allowances 1.20 8.28%
Solar Steam Generator, Acquisition & development cost,
Manpower training etc.
4 Power block Power block 1.80 12.41%
5 Balance of plant Balance of plant 1.08 7.45%
6 Land cost, levelling, internal roads, approach road, green Land Development 0.60 4.14%
development compound wall fencing gates etc
7 Civil works Civil works 0.96 6.62%
8 Labor Labor 0.72 4.97%
9 Electrical & Grid access Electrical & Grid 0.84 5.79%
access
10 Project Management, technical consultant and owners Project Management 0.36 2.48%
engineers
11 Project Engineering, Construction supervision and Project Engineering 0.24 1.66%
commissioning
12 Project Finance including IDC Project Finance 1.60 11.03%
13 Insurance Insurance 0.10 0.69%
14 Contingencies Contingencies 0.30 2.07%
Total 14.50 100.00%
Insurance Contingencies
Project!Finance 1% 2%
11%
Project!Engineering Solar!Field
2% 24%
Project!Management
3%
Electrical!&!Grid!
access
6%
Labor
5%
Storage!Device
8%
Civil!works
7%
Allowances
Land!Development
8%
4%
Balance!of!plant
7% Power!block
12%

2. CSP Solar Energy Value Chain
Support Heat collecting Tracking Solar steam
Mirror
Structure elements system generator
Hardware Absorptive coating
Galvanizing Fabrication
Fabrication Alloy steel
Steel item
Detailed
Wet cooling Engineering
Turbine Generator Power block
Dry cooling Integration and
Interface &
supervision in
Sliding installatin
parameters
Cables, Wiring, Switch yard,
Transformers, Grid interface, Metering Electrical
Protection
Land cost, Site development, Levelling
Civil works
Fencing, Foundation, Roads
Power
Solar observatory Site data capture Generation
Construction, Installation, Grid
Testing and Comissioning
Equipment
ERA Jointly
Supplier