helio100.sun.ac - STERG Websitesterg.sun.ac.za/wp-content/uploads/2016/04/4_W_Landman.pdf · Dr....
Transcript of helio100.sun.ac - STERG Websitesterg.sun.ac.za/wp-content/uploads/2016/04/4_W_Landman.pdf · Dr....
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www.stellenergy.com helio100.sun.ac.za
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HelioPod
Heliostat System for MGT CSP
Willem Landman
STERG Symposium - July 2016
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Content
• Background to Stellenergy (Pty) Ltd and Helio100
• The value proposition of MGT CSP
• Overview of the heliostat technology
• Our current status
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Helio40
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Typical central receiver CSP CAPEX split
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*IEA 2014 Solar Roadmap for cumulative value of CSP at 11% of world electricity
Together ~50% = USD 2.15 trillion*
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Background
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Key facts
• Startup out of Stellenbosch University in 2013
• From STERG – One of biggest CSP university groups
• Key leadership
– Paul Gauché: 20 years in tech-dev, mostly semiconductor industry in USA. Founder and first Director of STERG. Advisor for CSP and solar energy to government, industry and IEA. Founding ExCo – SASTELA.
– Multiple PhD and Master grads
– Senior advisors and partners for management and business development
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Helioteam (Key technical staff)
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Thinking Different
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Valley of Death
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The value proposition of MGT CSP
• Lowering of perceived financing risks through staggered market entry
• Small modular units => production economics
• Distributed power generation
• Independent of water and grid access constraints
• Reduced footprint constraints
• Hybridisation
• High temp Brayton cycles => high efficiency
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Heliostat Requirements for MGT CSP
• Higher flux requirements
• Small scale deployment
• Low cost
• High accuracy optics
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South African heliostat
technology development
Optical
measurement
system
Own ultra-low-cost local
controller
Completely wireless
Self-developed wireless
software
PV optimizer and battery
charger
Own facet design
and customizable to
alternative designs
Can reach over
90% local content
Minimal field
preparation needed
Minimal disturbance and
low installation cost
Installable by two
people
Small heliostats low-
cost tracker with wider
application, e.g., CPV,
PV, small and large CSP
Heliostat
designed for
gas turbine
Small heliostats
drive higher
volumes quicker
Heliostat
technology &
Pod design
Can industrialize
100% drive train
local manufacture
IP, Products & Services: Pod
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QA system: Zebra
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Pre-field assembly (Jun 2015)
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Pod assembly
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Field assembly (Jul 2015)
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Field assembled (Jun 2015)
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Helio100 System in Operation
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Small, Low-cost, Accurate.
• Glass inherently has 0.7mrad error…we are achieving 1mrad
• It’s a non-trivial problem which no one is able to get right (with all heliostats) let alone for MGT CSP
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SolarPACES 2015
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“I was really impressed by what you have set up in a relatively short time. Being involved with my team in several
heliostat development projects, I know what it means to go into the hardware phase…. So my best compliments
to you and especially to your team!”
Dr. Reiner Buck | Department Head "Point Focusing Systems“, German Aerospace Centre
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SolarPACES 2015 in Cape Town
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SBP Stellio
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• SolarPACES 2015 Technology Award • Certified by CIEMAT and CSP Services as best performing heliostat ever tested. • Would like to incorporate the Stellenergy control system – we are invited to
consortium Image used with permission from sbp gmbh.
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Stellenergy view of a 247Solar unit
~ 160 x 160 m (400 kW size) ~1,800 heliostats
Heliostats: - Optimized for 400kW
MGT-CSP tower - Lowest cost heliostat
Power plant: - 400 kW electric + heat 24x7
(with backup fuel)
Logistics & Manufacture: - Factory to site – no intermediate/pre-assembly
- No formally skilled workers needed
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Modular rollout: 10MW example
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Thank you/Questions Willem Landman