To download, head to - http://solarreference.com/cspalliance-csp-thermal-energy-storage-presentation/
Also available at CSP alliance website. Key information includes - direct comparison of a CSP power plant with a conventional power plant, importance of thermal energy storage and the fact that deployment would lead to much more cost reduction than r&d.
For colelction of similar resources, head to -
http://solarreference.com
To download, head to - http://solarreference.com/cspalliance-csp-thermal-energy-storage-presentation/
Also available at CSP alliance website. Key information includes - direct comparison of a CSP power plant with a conventional power plant, importance of thermal energy storage and the fact that deployment would lead to much more cost reduction than r&d.
For colelction of similar resources, head to -
http://solarreference.com
Concentrated Solar Power Course - Session 3 : Central Receiver and Parabolic ...Leonardo ENERGY
Parabolic dishes
* general description
* main elements: parabolic concentrator, structure and tracking system, receiver, stirling engine and generator
* state of the art: types of dish-stirling systems; operational aspects; performance and economy
* future developments
Central receiver systems
* general description
* main elements: heliostat, tower, receiver, power conversion system
* state of the art: technology options; operational aspects; performance and economy
* future developments
Concentrated Solar Power Course - Session 4 - Thermal Storage and HybridizationLeonardo ENERGY
Thermal storage for CSP plants:
* concept
* functions of the thermal energy storage system (tes)
* classification of tes systems
* state of the art
* future developments
Hybridisation of CSP plants:
* concept
* solar – gas hybrid csp plants
* hybridisation with biomass
To download, head to - http://solarreference.com/cspalliance-csp-thermal-energy-storage-presentation/
Also available at CSP alliance website. Key information includes - direct comparison of a CSP power plant with a conventional power plant, importance of thermal energy storage and the fact that deployment would lead to much more cost reduction than r&d.
For colelction of similar resources, head to -
http://solarreference.com
Concentrated Solar Power Course - Session 3 : Central Receiver and Parabolic ...Leonardo ENERGY
Parabolic dishes
* general description
* main elements: parabolic concentrator, structure and tracking system, receiver, stirling engine and generator
* state of the art: types of dish-stirling systems; operational aspects; performance and economy
* future developments
Central receiver systems
* general description
* main elements: heliostat, tower, receiver, power conversion system
* state of the art: technology options; operational aspects; performance and economy
* future developments
Concentrated Solar Power Course - Session 4 - Thermal Storage and HybridizationLeonardo ENERGY
Thermal storage for CSP plants:
* concept
* functions of the thermal energy storage system (tes)
* classification of tes systems
* state of the art
* future developments
Hybridisation of CSP plants:
* concept
* solar – gas hybrid csp plants
* hybridisation with biomass
Concentrated Solar Power Course - Session 5 - Solar Resource AssessmentLeonardo ENERGY
In this session there will be a complete review of technologies and techniques to assess the solar resource of a site and its suitability for a CSP project.
- Understanding the solar resource for csp plants
- Solar radiation measurement and estimation
- Solar radiation databases
- Statistical characterisation of the solar resource. Typical meteorological years
- Solar resource assessment for csp plants
Presentation from the New Mexico Regional Energy Storage & Grid Integration Workshop: Concentrating Solar Power and Thermal Energy Storage, presented by Clifford Ho, Sandia National Laboratories, August 23-24, 2016.
A Praposal For Installation of 10 mw solar thermal power plant.Saurabh Biswas
A Business Praposal for goverment to install a 10 mw solar thermal power plant in dehradun ( hilly area) , our company PLUGS allow u to generate the power in a low budget...
Fabrication, Designing & Performance Analysis of Solar Parabolic TroughIJERA Editor
A parabolic trough solar collector uses a parabolic cylinder to reflect and concentrate sun radiations towards a receiver tube located at the focus line of the parabolic cylinder. The receiver absorbs the incoming radiations and transforms them into thermal energy, the latter being transported and collected by a fluid medium circulating within the receiver tube.This method of concentrated solar collection has the advantage of high efficiency and low cost, and can be used either for thermal energy collection, for generating electricity or for both, This paper focused on the fabrication and designing of solar parabolic trough, The designing of trough is depend upon the following parameters : Aperture of the concentrator , Inner diameter of absorber tube, Outer diameter of absorber tube, Inner diameter of glass tube, Outer diameter of glass tube, Length of parabolic trough, Concentration ratio, Collector aperture area, Specular reflectivity of concentrator, Glass cover transitivity for solar radiation, Absorber tube emissivity/emissivity, Intercept factor, Emissivity of absorber tube surface and Emissivity of glass. The performance analysis will be based on the Experimental data collection and calculations with reference to: Thermal performance calculations, Overall loss coefficient and heat correlations. Heat transfer coefficient on the inside surface of the absorber tube and Heat transfer coefficient between the absorber tube and the Cover.
Bill Gould, CTO at SolarReserve, presented at the GW Solar Institute Symposium on April 19, 2010. For more information visit: solar.gwu.edu/Symposium.html
To download, head to -
http://solarreference.com/parabolic-trough-collectors-comparison/
A detailed comparison of different types of parabolic trough collectors on the basis of specifications, technology, material etc. If CSP is your arena, this is one presentation you just can't miss !!!
Source: NREL
For more quality resources visit us at http://solarreference.com
Il CSP di piccola taglia e il calore di processo: esempi pratici e casi studi...Sardegna Ricerche
L'intervento di Werner Platzer (Fraunhofer ISE) in occasione dell'evento "Solare termodinamico di piccola taglia: impianti dimostrativi in Sardegna e calore di processo industriale" che si è tenuto a Pula (CA) il 25 settembre 2015.
Flüssigsalzbasierte Hochtemperaturwärmespeicher – die Schlüsseltechnologie fü...engineeringzhaw
ZHAW School of Engineering, Energie- und Umweltapero vom 3. März 2015 zum Thema Solarkraftwerke – photovoltaische und thermische Systeme.
Martin Selig, CEO, Novatec Solar GmBH
Concentrated solar power in India - an evaluationSindhu Maiyya
Work done as a part of internship with Energy Alternatives India. A researched insight into India as an investment site for concentrated solar power generation. Technology explained along with pros, cons, and market conditions.
CSP Training course - Lesson 5 : Assessing the Solar Resource for CSP plantsLeonardo ENERGY
5th and last lesson of this course on CSP technology.
In this session there will be a complete review of technologies and techniques to assess the solar resource of a site and its suitability for a CSP project.
- Understanding the solar resource for csp plants
- Solar radiation measurement and estimation
- Solar radiation databases
- Statistical characterisation of the solar resource. Typical meteorological years
- Solar resource assessment for csp plants
Concentrated Solar Power Course - Session 5 - Solar Resource AssessmentLeonardo ENERGY
In this session there will be a complete review of technologies and techniques to assess the solar resource of a site and its suitability for a CSP project.
- Understanding the solar resource for csp plants
- Solar radiation measurement and estimation
- Solar radiation databases
- Statistical characterisation of the solar resource. Typical meteorological years
- Solar resource assessment for csp plants
Presentation from the New Mexico Regional Energy Storage & Grid Integration Workshop: Concentrating Solar Power and Thermal Energy Storage, presented by Clifford Ho, Sandia National Laboratories, August 23-24, 2016.
A Praposal For Installation of 10 mw solar thermal power plant.Saurabh Biswas
A Business Praposal for goverment to install a 10 mw solar thermal power plant in dehradun ( hilly area) , our company PLUGS allow u to generate the power in a low budget...
Fabrication, Designing & Performance Analysis of Solar Parabolic TroughIJERA Editor
A parabolic trough solar collector uses a parabolic cylinder to reflect and concentrate sun radiations towards a receiver tube located at the focus line of the parabolic cylinder. The receiver absorbs the incoming radiations and transforms them into thermal energy, the latter being transported and collected by a fluid medium circulating within the receiver tube.This method of concentrated solar collection has the advantage of high efficiency and low cost, and can be used either for thermal energy collection, for generating electricity or for both, This paper focused on the fabrication and designing of solar parabolic trough, The designing of trough is depend upon the following parameters : Aperture of the concentrator , Inner diameter of absorber tube, Outer diameter of absorber tube, Inner diameter of glass tube, Outer diameter of glass tube, Length of parabolic trough, Concentration ratio, Collector aperture area, Specular reflectivity of concentrator, Glass cover transitivity for solar radiation, Absorber tube emissivity/emissivity, Intercept factor, Emissivity of absorber tube surface and Emissivity of glass. The performance analysis will be based on the Experimental data collection and calculations with reference to: Thermal performance calculations, Overall loss coefficient and heat correlations. Heat transfer coefficient on the inside surface of the absorber tube and Heat transfer coefficient between the absorber tube and the Cover.
Bill Gould, CTO at SolarReserve, presented at the GW Solar Institute Symposium on April 19, 2010. For more information visit: solar.gwu.edu/Symposium.html
To download, head to -
http://solarreference.com/parabolic-trough-collectors-comparison/
A detailed comparison of different types of parabolic trough collectors on the basis of specifications, technology, material etc. If CSP is your arena, this is one presentation you just can't miss !!!
Source: NREL
For more quality resources visit us at http://solarreference.com
Il CSP di piccola taglia e il calore di processo: esempi pratici e casi studi...Sardegna Ricerche
L'intervento di Werner Platzer (Fraunhofer ISE) in occasione dell'evento "Solare termodinamico di piccola taglia: impianti dimostrativi in Sardegna e calore di processo industriale" che si è tenuto a Pula (CA) il 25 settembre 2015.
Flüssigsalzbasierte Hochtemperaturwärmespeicher – die Schlüsseltechnologie fü...engineeringzhaw
ZHAW School of Engineering, Energie- und Umweltapero vom 3. März 2015 zum Thema Solarkraftwerke – photovoltaische und thermische Systeme.
Martin Selig, CEO, Novatec Solar GmBH
Concentrated solar power in India - an evaluationSindhu Maiyya
Work done as a part of internship with Energy Alternatives India. A researched insight into India as an investment site for concentrated solar power generation. Technology explained along with pros, cons, and market conditions.
CSP Training course - Lesson 5 : Assessing the Solar Resource for CSP plantsLeonardo ENERGY
5th and last lesson of this course on CSP technology.
In this session there will be a complete review of technologies and techniques to assess the solar resource of a site and its suitability for a CSP project.
- Understanding the solar resource for csp plants
- Solar radiation measurement and estimation
- Solar radiation databases
- Statistical characterisation of the solar resource. Typical meteorological years
- Solar resource assessment for csp plants
A white paper on Concentrated solar power in IndiaSindhu Maiyya
A white paper submitted Energy Alternatives India, but didn't get published because of the company's shift in focus.
Describes the technology, supply chain, and market constraints for a potential investor in concentrated solar power.
concentrated solar power technology - cspSANTHOSHRAJ60
From these slides, you can able to view the diverse application of concentrated solar power technology. And the thriving global market statistics of CSP technology. The future goals and current technology of CSP operation in India and globally.
Dr. Keith Lovegrove unveiled the ANU's new solar thermal dish in September at the SolarPACES international solar thermal conference in Berlin to much acclaim. This will be the first time it will be presented in Melbourne.
It is the world's biggest solar dish that comes with a mass production system that can build one dish a day. The dish has the highest optical efficiency of any commercial solar technology in the world and a field of 500 produces 100MW electrical power. ANU's dishes can be used on undulating ground, which is difficult for current solar thermal systems that use mirror fields or troughs.
Dr. Keith Lovegrove will also talk about replacing all of Australia's energy needs with this solar technology used in conjunction with thermal salt storage.
Dr. Keith Lovegrove is a senior lecturer in Engineering in the Faculty of Engineering and Information Technology at the Australian National University (ANU). He heads the ANU Solar Thermal Group which works on a range of projects involving high and low temperature thermal conversion of solar energy. This includes looking at dish and trough concentrators and thermochemical energy storage. He is widely published in scientific journals and has advised the Australian Government on CSP . Dr Lovegrove and his team are at the forefront of International research into concentrated solar power.
Solar Resource Assessment - How to get bankable meteo dataSolarReference
Available for download at http://solarreference.com/solar-resource-assessment-how-to-get-bankable-meteo-data/
This presentation from DLR (German Aerospace Center) explains.
1. Solar radiation data characteristics
2. How radiation data is gathered from ground measurements and derived from satellite data
3. Comparison of the two, and some important factors to be weighed in when deciding what to use
This presentation can also be downloaded at NREL
This presentation explores the food-energy-water nexus in light of renewable energy for food preservation. It provides information on projects taken up by TERI for commercialising renewable powered small scale cold storages
This document has been prepared using the publicly available version from UNDP. To download, head to - solarreference.com/users-handbook-on-solar-water-heaters/
Also available from UNDP site. This handbook on solar water heaters provides organized information to users about the different technologies and equipment available, and the costs involved in installing solar water heaters.
Solar resource measurements and sattelite dataSolarReference
To access explanatory notes and download link, head to -
http://solarreference.com/all-you-need-to-know-about-solar-resource-measurement/
This presentation can also be downloaded for SFERA website (SFERA Summer School 2013). Amazing, concise, to the point document. For more quality resources, visit
http://solarreference.com
This presentation details out fire safety issues with small PV systems, and related safety best practices. Several links are available directing to more detailed reports. For more similar free resources on renewable energy please visit http://solarreference.com/
For download link head to http://solarreference.com/solar-cooling-training-presentation/
Also available from SOLAIR website.
A presentation from the SOLAIR project on sizing of solar air conditioners. their website has a lot of details information. For similar useful resources visit us on http://solarreference.com
For direct download link, visit:
http://solarreference.com/what-you-need-to-design-rural-mini-grids/
The “Mini Grid Design Manual” would be useful to anyone wanting to design generation-to-house wiring systems for simple village level grids. With detailed theory as well as practical advice, it is very much relevant today as it was when published back in 2000.
To download, head to -
http://solarreference.com/parabolic-trough-collectors-comparison/
A detailed comparison of different types of parabolic trough collectors on the basis of specifications, technology, material etc. If CSP is your arena, this is one presentation you just can't miss !!!
Source: NREL
For more quality resources visit us at http://solarreference.com
To download head to http://solarreference.com/solar-pv-codes-brooks/
Also available on the Brook Solar website (they have some quality stuff)
This presentation from Brook Solar (Now Brooks Engineering LLC) is a wonderful compilation of the standards in place in the PV industry. But you do know that standards are like babies, they don't stop growing!
For more quality information visit http://solarreference.com/
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
"Impact of front-end architecture on development cost", Viktor TurskyiFwdays
I have heard many times that architecture is not important for the front-end. Also, many times I have seen how developers implement features on the front-end just following the standard rules for a framework and think that this is enough to successfully launch the project, and then the project fails. How to prevent this and what approach to choose? I have launched dozens of complex projects and during the talk we will analyze which approaches have worked for me and which have not.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
Connector Corner: Automate dynamic content and events by pushing a buttonDianaGray10
Here is something new! In our next Connector Corner webinar, we will demonstrate how you can use a single workflow to:
Create a campaign using Mailchimp with merge tags/fields
Send an interactive Slack channel message (using buttons)
Have the message received by managers and peers along with a test email for review
But there’s more:
In a second workflow supporting the same use case, you’ll see:
Your campaign sent to target colleagues for approval
If the “Approve” button is clicked, a Jira/Zendesk ticket is created for the marketing design team
But—if the “Reject” button is pushed, colleagues will be alerted via Slack message
Join us to learn more about this new, human-in-the-loop capability, brought to you by Integration Service connectors.
And...
Speakers:
Akshay Agnihotri, Product Manager
Charlie Greenberg, Host
Let's dive deeper into the world of ODC! Ricardo Alves (OutSystems) will join us to tell all about the new Data Fabric. After that, Sezen de Bruijn (OutSystems) will get into the details on how to best design a sturdy architecture within ODC.
1. Concentrating Solar Power Alliance
CSP Overview
SEPA Webinar
Frank (Tex) Wilkins
Executive Director
CSP Alliance
January 31, 2013
CSP Alliance
1
http://www.csp-alliance.org
2. Concentrating Solar Power Alliance
• CSP Alliance - an advocacy group formed in March 2012 whose
goal is to increase the deployment of CSP
• Mission – inform utilities, grid operators, and regulators of the
benefits of CSP with its ability to store thermal energy and provide
dispatchable power
• Members - membership includes Abengoa, BrightSource, Torresol
Energy, Lointek, Cone Drive, and Wilson Solarpower
CSP Alliance
2
http://www.csp-alliance.org
4. CSP Storage & Power Block
CSP Alliance
4
Solana: photos courtesy of Abengoa
.
4
http://www.csp-alliance.org
5. Plant Characteristics
• Project start up – if the turbine is warm it takes 10 minutes from start
to full power. If the plant is operating as spinning reserve, full capacity
can be reached in 4 minutes. The plant can be started and increased
to full load in 10 minutes or less.
• Off-design operation - CSP plants can operate efficiently at off-design
conditions. For example, the efficiency of a steam turbine at 50% load
is about 95% of the design efficiency.
• Power quality – same as power from fossil plants providing reactive
power support, dynamic voltage support, and primary frequency
control.
• Dispatch of stored energy – power can be put onto the grid at any
time, day or night.
CSP Alliance
5
http://www.csp-alliance.org
6. Dispatch Examples
July
800
1.4
700
1.2
600
1.0
500
0.8
400
0.6
300
0.4
200
Solar Resource (W/m2)
900
1.6
Summer: dispatch power to
meet afternoon & early evening
peak demand
January
100
0.0
800
0
0.2
1.6
1.4
700
1.2
600
1.0
500
0.8
400
0.6
300
0.4
200
0.2
100
Hour Ending
Relative Value of Generation
Trough Plant w/6hrs TES
Solar Radiation
Winter: dispatch power to
meet morning and evening
periods of peak demand
Utility Load, Trough Plant
Output
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
0.0
0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Hour Ending
Relative Value of Generation
Trough Plant w/6hrs TES
Solar Radiation
*Graphs courtesy of Arizona Public Service
CSP Alliance
6
http://www.csp-alliance.org
Solar Resource (W/m2)
Utility Load, Trough Plant
Output
1.8
7. CSP (trough) Water Requirements
• Cooling
– Wet Cooling
– Dry Cooling
• Mirror washing
• Steam cycle cleaning
700-900 gal / MWh
70-90 gal / MWh
~ 50 gal / MWh
~ 50 gal / MWh
Impact of Dry Cooling:
~90% less water with:
• 4-7% cost increase in hot
climates (e.g. Las Vegas, NV)
• 3-5% cost increase in cooler
climates (e.g. Alamosa, CO)
CSP Alliance
7
http://www.csp-alliance.org
8. Thermal Energy Storage
Typical CSP storage is heating a mixture of nitrate salts from 390°C
(troughs) to 560°C (towers). Salt heated in the solar field is placed in
the hot tank. Salt coming from the turbine goes to the cold tank.
*Photos courtesy Abengoa
CSP Alliance
8
http://www.csp-alliance.org
9. Trough Power Plant
w/ 2-Tank Molten Salt Thermal Storage
Solar Field
Storage
Power Block
Steam Turbine
Hot
Tank
Heat Exchanger
Cold
Tank
Pump
CSP Alliance
9
http://www.csp-alliance.org
10. Trough Power Plant:
Power Generation
Solar Field
Power Block
Storage
Steam Turbine
Hot
Tank
Heat Exchanger
Cold
Tank
Pump
CSP Alliance
10
http://www.csp-alliance.org
11. Trough Power Plant
Power Generation and Charging Storage
Solar Field
Power Block
Storage
Steam Turbine
Hot
Tank
Heat Exchanger
Cold
Tank
Pump
CSP Alliance
11
http://www.csp-alliance.org
12. Trough Power Plant
Power from Thermal Storage
Solar Field
Power Block
Storage
Steam Turbine
Hot
Tank
Heat Exchanger
Cold
Tank
Pump
CSP Alliance
12
http://www.csp-alliance.org
13. Storage Provides Intraday System
Stability
1000
300
900
250
700
200
600
150
500
400
100
Power Output (MWhe)
Direct Normal Irradiance DNI (W/m2)
800
300
200
50
100
0
0:00
0
1:40
3:20
5:00
6:40
8:20
10:00 11:40 13:20 15:00 16:40 18:20 20:00 21:40 23:20
April 12, 2012 (Time of Day)
*Chart courtesy of Solar Reserve
CSP Alliance
13
http://www.csp-alliance.org
14. Storage Promoting Flexibility
• Use of storage can lessen grid ramps (the rate of
increase/decrease in grid system power) and reduce operator
uncertainty due to solar forecast errors.
• High capacity value helps meet resource adequacy requirements
• Plant can provide spinning or non spinning reserves
• Importance of storage increases as grid penetration increases of
wind and solar without storage*
– Little value of storage at low grid penetration of renewable energy
– The benefits of storage at higher renewable penetration can be in the
range of $30-40/MWh relative to renewables w/o storage due to
energy, ancillary services, capacity, power quality and avoided
system costs of integration in recent studies by LBNL and NREL
• CSP with storage enables greater use of PV
* Ref: “The Economic and Reliability Benefits of CSP with Thermal Storage:
Recent Studies and Research Needs”, CSP Alliance Report, Dec 2012.
CSP Alliance
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http://www.csp-alliance.org
15. Categories of Value
Energy
Ancillary services
(for secondary frequency
control)
Power quality and other
ancillary services
Capacity
Integration and
curtailment costs
compared to solar PV and
wind
CSP Alliance
Hourly optimization of energy schedules
Subhourly energy dispatch
Ramping reserves
Regulation
10-minute spinning reserves
10-min non-spinning reserves
Operating reserves on greater than 10 minute timeframes
Voltage control
Frequency response
Blackstart
Generic MW shifted to meet evolving system needs
Operational attributes
Reduced production forecast error and associated
reserve requirements
Reduced curtailment due to greater dispatch flexibility
without production losses
Ramp mitigation
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http://www.csp-alliance.org
16. Solar Collection: Trough Technology
•
Parabolic trough technology uses long parabolic mirrors, with an absorber tube running each mirror’s
length at the focal point. Sunlight is reflected by the mirror and concentrated on the absorber tube.
•
Heat transfer fluid, comprised of oil or molten salts, runs through the tube to absorb the concentrated
sunlight. The heat transfer fluid is then used to heat steam for a turbine/generator or heat storage.
•
Trough systems are sensitive to economies of scale and estimated to be most cost effective at
100 MW or greater.
•
Solar concentration: 75 suns | Operating temp: 390°C |
CSP Alliance
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17. Solar Collection: Power Towers
•
Power towers use an array of flat, moveable mirrors, called heliostats, to focus the sun's rays
onto a receiver at the top of a central tower. The energy in the receiver is transferred to a
heat transfer fluid (salt or steam) which is used to heat steam for a turbine/generator or
storage media (salt).
•
Molten salt allows solar energy from daylight hours to be stored to generate steam
throughout the evening. The high operating temperature enables less expensive storage.
•
Due to power block requirements, power towers are sensitive to economies of scale and are
typically most economical at 100 MW or more.
•
Solar concentration: 800 suns | Operating temperature: 560°C
CSP Alliance
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18. CSP Plants Under Construction in the U.S.
Solana
Mojave
Genesis
Crescent
Dunes
Ivanpah
Technology
Trough w/6
hrs storage
Trough
Trough
SaltTower
w/10 hrs
storage
Steam
Towers
Capacity
(MW)
280
280
250
110
392
Jobsconstruction
1,600
800
600
1,000
Jobspermanent
85
47
45
86
Location
Arizona
California
California
Nevada
California
DOE Loan
Guarantee
$1.45B
$1.2B
$0.85B
$0.74B
$1.6B
Completion
2013
2014
2013
2013
2013
Developer
Abengoa
Abengoa
NextEra
Solar
Reserve
BrightSource
CSP Alliance
1,000 and 80
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http://www.csp-alliance.org
22. Crescent Dunes: 110 MW with 10 hrs storage
*photos courtesy Solar Reserve
CSP Alliance
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http://www.csp-alliance.org
23. Solar Collection
Direct normal, diffuse, and global solar radiation
CSP can use only the direct because diffuse can not be effectively focused or
concentrated
SOURCE: Status Report on Solar Thermal Power Plants, Pilkinton Solar International, 1996.
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24. Solar Resource in U.S. Southwest
CSP Alliance
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http://www.csp-alliance.org
25. DOE & BLM: identifying land for CSP
deployment
Approach: a programmatic environmental impact statement
(PEIS)
•
BLM manages 119 million acres in the 6 Southwestern states where the
solar resource is most intense (CA, NV, NM, AZ, CO, and UT)
•
Identification of land that is
appropriate for solar deployment from
technical and environmental
perspectives
•
Streamline evaluation and processing
of solar projects
• Identification of additional transmission
corridors crossing BLM-managed land
• 17 solar zones proposed totaling about
285,000 acres
CSP Alliance
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http://www.csp-alliance.org
26. Cost Reduction: R&D and Deployment
• Sargent & Lundy’s due-diligence
study* evaluated the potential cost
reductions of CSP.
• Cost reductions for CSP
technology will result from R&D
and deployment.
*
CSP Alliance
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Sargent and Lundy (2003). Assessment of Parabolic Trough
and Power Tower Solar Technology Cost and Performance
Impacts. http://www.nrel.gov/docs/fy04osti/34440.pdf
http://www.csp-alliance.org
27. Importance of Deployment on Cost
Deployment is as more important in
reducing cost as R&D advancements
CSP Alliance
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http://www.csp-alliance.org
28. DOE’s SunShot Goal*
Reduce the installed cost of solar energy systems to about 6¢kWh
w/o tax incentives, driving widespread, large-scale adoption of this
renewable energy technology
*SunShot Vision Study, Feb 2012,
http://www1.eere.energy.gov/solar/sunshot/vision_study.html
CSP Alliance
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http://www.csp-alliance.org
29. Paths to SunShot Goal – DOE R&D
• High Temperature Systems – higher operating temperature
increases system efficiency.
– Existing steam systems operate at 390oC – 565oC with 37-42%
efficiency.
– Research focused on supercritical CO2 Brayton operating at 600oC800oC with 50-55% efficiency
• Storage – two tank salt the standard to beat but explore other
options like higher temp storage/heat transfer fluid materials, phase
change and solid materials, including direct steam
• Solar Field – reduce collector cost while maintaining or improving
optical performance
• Receivers – develop selective coatings for high temperature
receivers
CSP Alliance
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http://www.csp-alliance.org
30. Thank You
Frank “Tex” Wilkins
Executive Director
Concentrating Solar Power
Alliance
Phone: (410) 960-4126
tex.wilkins@gmail.com
CSP Alliance
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