sbp sonne_Stellio

 

Geometry：

Overall Dimension: Pentagonal ~7.9m D (48.5 m² aperture area)

Number of mirror facet: 10

Mirror thickness: 4mm

 

Optics：

Mirror reflectance: 0.935

Slope error: 1.5 mrad (2D)

Tracking error: 0.6 mrad(1D)

 

Components:

Structure: hot-dipped and pre-galvanised steel

Pedestal: sheet stell or pre-stressed spun concrete pipe

Drive System: bi-axial slope drive, 110° angle range

Actuators: Linear actuators, brushless DC motors

Bearings: Maintenance-free plain bearings

Control system: EUT15 local controller

 

 

Installed Cost：

Base Assembly: 19.96 $/m²

Mirrors and Adhesives: 17 $/m²

Drives: 16.08 $/m²

Controller: 14.43 $/m²

Rotation Assembly: 12.19 $/m²

Mirror Support:  6.79 $/m²

Foundations: 5.15 $/m²

Power and Energy Storage: 7.98 $/m²

Infrastructure: 6.95 $/m²

Site Labor: 16.39 $/m²

Transport: 2.29 $/m²

Fasteners: 2.06 $/m²

Total Installed Cost: 127 $/m², Assume 22,239 heliostats (1,078,592 m²)

 

Commercial application：

Plant 1: 50 MW Hami CSP Power Plant in China

Plant 2: Huidong New Energy Akesai 110MW

 

Photo: https://en.chinahuaning.com/news/241.html

 

Photo: http://en.cnste.org/html/csp/2020/1120/940.html

 

 

Resources:

[1] https://www.sbp.solar/project/stellio-heliostat/?lang=en
[2]Parthiv, Kurup, et al. "Cost update: Commercial and advanced heliostat collectors." Golden, CO: National Renewable Energy Laboratory. NREL/TP-7A40 80482 (2023).