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Game

Changing

Solar

Tracking

CSP

PV

CPV

Ganged Heliostat Technology 

Our advantages...

Utility and commercial
scale tracking
FAST

Deployed rapidly over rough terrain

Rolling terrain ideal
ACCURATE

Milliradian tracking accuracy 

Less than 2 milliradians error

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LOW COST 

Dramatically reduced infrastructure 

24 heliostats, 2 supporting posts,
with 6 actuators
 

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  • SNL’s researchers demonstrated that with proper damping, the ganged heliostats could withstand varying load conditions, and have minimal impact on optical performance.

  • SNL researchers developed a custom code to rearrange the ganged heliostat, thereby allowing the team to improve the optical efficiency of the technology. After implementing this custom code, Skysun’s ganged style proved comparable to the optical efficiency of a conventional heliostat field. 

  • SNL’s cost analysis of the conceptual 10 MW CSP plant demonstrated the cost advantage of Skysun’s model when compared to current CSP systems. The lowest average cost for today’s conventional heliostats is about $120/m2. SNL concluded that ganged heliostats can achieve a low-to-mid $70s/m2, which is in line with DOE’s SunShot Initiative goal of $75/m2.  Alternative field designs promise additional savings.

  • Manual on-sun tracking was demonstrated on the small-scale prototype system. This results will be used in the future to develop algorithms for autonomous on-sun tracking.

  • The SBV program advanced Skysun’s technology from a TRL 2 to a TRL 4.

Prototypes with over 3 years in an exterior environment

NASA GRC collaboration proves wind survivability

Sandia National Laboratories and the National Solar Thermal Test Faclity complete 12 month study

Major Findings:

 

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In the NEWS
Oct. 2017  Greentech Media article:
https://www.greentechmedia.com/articles/read/new-solar-collector-design-csp-costs-recored-lows#gs
Sept. 2017         DOE/EERE recent post:  
https://energy.gov/eere/articles/new-solar-collector-tech-could-lower-costs-concentrating-solar-power
June 2018 Skysun, LLC
Research begins on Parabolic Trough/Linear Fresnel Hybrid of the ganged heliostat: "G - Helio Project"
Oct. 2018 SolarPaces Casablanca
Congrats to Dr. Ken Armijo, Sandia Nat'l Lab, on presenting research on Skysun's ganged heliostat at the SolarPaces Conf.  Great job Ken!
http://www.solarpaces.org/solarpaces-conference-2018-2-5-october-casablanca-morocco/
 
 

For the full Skysun-Sandia report please click the pdf link below.

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