Plant	SUPCON Delingha (50)
Location	China
Owner(s)	SUPCON Solar
Capacity (MW)	50
Construction Start Date	Mar.2017
Construction End Date	2018
Generation Start Year	2018
Construction Cost ($)	1.05 bil
Cost pkWh ($)	3164.8
LCOE ($)	0.09
Heliostat Aperture Area (m²)	20
Heliostat Manufacturer	Supcon China
Heliostat Model	SUPCON
Mirror Manufacturer	Damin Glass China
Heliostat Dimension	5.8m x 3.5m
Heliostat Facets (C x R)	2x2
Solar Field Area (m²)	542700
Heliostat Cost pm² ($)	116.63
Tower Height (m)	200
Receiver Height (m)	21
Receiver Midpoint Height (m)	200
Receiver Fluid	Molten Salt
Receiever Manufacturer	Hangzhou Boiler Group China
Receiver Model	External - Cylindrical
Number of Heliostats	27135
Tower Position (Lat/Long)	(37.366, 97.293)

General Plant Data

·       Location: China

·       Owner(s): SUPCON Solar

·       Capacity (MW): 50

Source: https://www.protermosolar.com/wp-content/uploads/2023/01/Central-Delingha-2.png

Plant Timeline

·       Construction Start Date: Mar.2017

·       Construction End Date: 2018

·       Generation Start Year: 2018

Plant Costs

·       Construction Cost ($): 1.05 bil

·       Cost pkWh ($): 3164.8

·       LCOE ($): 0.09

Heliostat Design

·       Heliostat Aperture Area (m²): 20

·       Heliostat Manufacturer: Supcon China

·       Heliostat Model: SUPCON

·       Mirror Manufacturer: Damin Glass China

·       Heliostat Dimension: 5.8m x 3.5m

·       Heliostat Facets (C x R): 2x2

·       Solar Field Area (m²): 542700

·       Heliostat Cost pm² ($): 116.63

Source: http://www.cosinsolar.com/cases/detail/id/8.html

Source: http://www.cosinsolar.com/cases/detail/id/8.html

Tower/Receiver

·       Tower Height (m): 200

·       Receiver Height (m): 21

·       Receiver Midpoint Height (m): 200

·       Receiver Fluid: Molten Salt

·       Receiever Manufacturer: Hangzhou Boiler Group China

·       Receiver Model: External - Cylindrical

Source: http://en.cnste.org/html/csp/2021/1130/1135.html

Source:  http://www.cnste.org/html/xiangmu/2022/0524/9027.html

Plant Layout

·       Number of Heliostats: 27135

·       Tower Position (Lat/Long): (37.366, 97.293)

Source: http://www.cosinsolar.com/cases/detail/id/8.html

Local Environmental Conditions

SUPCON Delingha 50MW project is located in high latitude region. It has high DNI, but it has the characteristics of cold, hypoxia, dry, windy and sandy, and large temperature difference between day and night.

Lessons Learned

·       SUPCON Delingha 50MW CSP project has already achieved and exceeded its designed generation ahead of time.

·       There are needs for optimal design of the conventional steam turbine generator system and BOP systems.

·       60% of the large CSP plants in China are tower CSP power plant, 28% of them are parabolic troughs, and 12% of them are Fresnel type, since most of high DNI regions in China are located in middle and high latitudes and tower type heliostats uses the dual axis tracking form, which lead to better cosine efficiency than parabolic trough with single axis tracking.

·       The generation data showed that the generation variations between different seasons are small, which shows the advantages of utilizing tower CSP power plant in high latitude region. 

Source: “Mr. Jianxiang Jin: The Story behind the Successful Operation of SUPCON Solar Delingha 50MW Molten Salt Tower CSP Plant.” Mr. Jianxiang Jin: The Story behind the Successful Operation of SUPCON SOLAR Delingha 50MW Molten Salt Tower CSP Plant - China Solar Thermal Alliance, en.cnste.org/html/csp/2022/0718/1266.html. Accessed 3 Oct. 2023.

Plant Generation