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4.3_Modeling Microgrids with HOMER_Glassmire_EPRI/SNL Microgrid


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Presentation from the EPRI-Sandia Symposium on Secure and Resilient Microgrids: Modeling Microgrids with HOMER: Capabilities and Benefits in the U.S. Grid-Connected Market, presented by John Glassmire, HOMER Energy, Baltimore, MD, August 29-31, 2016.

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4.3_Modeling Microgrids with HOMER_Glassmire_EPRI/SNL Microgrid

  1. 1. Optimizing Clean Power Everywhere 1790 30th St, Suite 100, Boulder, Colorado 80301, USA ● +1-720-565-4046 Modeling Microgrids with HOMER®: Capabilities and Benefits in the U.S. Grid-Connected Market John Glassmire Director of Energy Engineering
  2. 2. HOMER Energy • NREL: 1992-2009 • Original developers now at HOMER Energy • 160,000+ users in 193 countries • HOMER growth follows microgrid industry 1,600+ new signups each month
  3. 3. Software: The HOMER® Software is the global standard for microgrid economic design optimization Education and Training: Building capacity for designing hybrid renewable systems Consulting: Advising on microgrid design, project development, and markets Market Access: Helping investors, people, and suppliers connect with projects and partners Overview of what we do
  4. 4. HOMER Software • HOMER Pro is the industry standard for rapid assessment of least cost solutions for clean, reliable, distributed power – Conventional resources – Renewable resources – Neighboring grid connections – Storage – Load Management
  5. 5. HOMER Software • The only major commercial tool focused on microgrid design optimization
  6. 6. HOMER Software History • 1993 Village Power – Internal NREL use • 1998 Version 1.0 – Publicly available application • 2001 Version 2.0 – Grid-connected microgrids, CHP • 2009 HOMER Energy – Commercial license • 2013 to today HOMER Pro – Completely redesigned UI – HOMER Optimizer™ – Grid reliability modeling – All components as library – Enhanced storage modeling – Advanced grid-storage modeling – Multi-year modeling and cost escalation – Controllers, New dispatch options, MATLAB Link & Custom SDK
  7. 7. Distributed, alternative HOMER bridges different worlds Centralized, traditional HOMER Model Technical Economic HOMER is a communication tool Renewable advocates Utility operators Power Engineers Financiers
  8. 8. 1. Grid-Tied Resilience HOMER provides a key resource in the growing hybrid energy markets, helping design distributed solutions for reliability. 2. CO2 reduction HOMER helps customers and communities plan low cost options to meet environmental goals. 3. Backup for unreliable grids HOMER helps provide clean, quiet, and reliable power where it is not available. 4. Remote systems Island/Islanded Microgrids Energy Access with Mini-grids Remote Projects and facilities Market applications Our Software is used to design microgrids from 3 kW – 300 MW
  9. 9. Who uses HOMER?
  10. 10. A few users of HOMER Pro
  11. 11. What others say about us “We spent a lot of money developing our own model, but threw it away because everyone kept asking for our HOMER results.” Bruce Levy, CEO, TDX Power - USA “Everybody I know who is working with HOMER is amazed” Michael Tittmann, Tittmann Solar GmbH, Germany “You guys have created a very powerful tool - I’m new to the Microgrid world - so HOMER is a great help. I recommend Homer to everyone I meet!” Steve B – Ontario, Canada “HOMER has become a staple in our program's integrated energy planning course” Martin Obermaier, Energy Planning Program - COPPE/UFRJ, Brazil
  12. 12. If you’ve seen one microgrid…. you’ve seen one microgrid! The microgrid challenge
  13. 13. What is best? • Depends on the application –Resources –Loads –Equipment prices –Equipment performance • A confused mind says “No!” • HOMER fits the pieces together
  14. 14. Microgrid design cycle Collect data Analyze Evaluate Improve There are many different design cycles we could choose. This is a simple one.
  15. 15. Microgrid design process Early-stage design Lots of options Quick, low-cost analysis Easy to change designs Goals not firm Late-stage design Designs are very detailed Formal vendor quotes Design changes hard/expensive Good understanding of benefits T&D/wiring, power flow, transient Chosen design Starting design Analyze Improve Collect data Evaluate Continuous refinement of the project design HOMER
  16. 16. Considerations in MG modelling • Early design is important – Eliminate bad options to save $$$ – Clarify goals and benefits • The model is important – No need to re-invent the wheel! – Tested models important for bankability • Need to consider reliability – MGs require chronological modeling – Needs vary: design optimization, power flow, transient analysis • Collecting data has a cost – Use the data you’ve got – Improving the data is a choice • Dispatch & control affects the economics – Need a platform that can quickly compare dispatches • The world is uncertain – Use sensitivity analysis to understand risk – Good early design prevents major changes during late design Let’s build a slow, expensive, complicated model in Excel!
  17. 17. Why use HOMER? • Time-tested – HOMER software in use for more than 2 decades • Reliable – Chronological simulation underpins all results • Commercially supported – Easy to obtain – Strong user support • Usability is part of our design process – Friendly user-interface • Merges the technical & economic – Balances critical factors for making microgrid design decisions • Quick design optimization results – Simulate thousands of options in minutes • Uses the available data to find the optimal design – “Use the data you have” – Identify what data is important – Flexible data inputs to support evolving data • Extensive reporting and outputs – Rapid reports, plots, graphics • Infinitely customizable (as complex as you need!) – Standard & custom dispatches, Millions of possible designs – Can use MATLAB Link and SDK to test different dispatch algorithms • Supports from early (conceptual, pre-feasibility) to late-stage (engineering design) – Understand benefits before committing significant time & money
  18. 18. Some sample HOMER analyses • NY Smart grid • Homewood Ski Resort CHP/PV feasibility study • Solar+Storage for California wineries • IRENA Innovation Outlook: Renewable Mini-grids (pending publication) • Massachusetts DOER Community Clean Energy Resiliency Initiative • Fort Bragg Analysis of Generation Alternatives • Microgrid Design for Emergency Services in San Diego
  19. 19. What if customers cut the wire?
  20. 20. Customers should not cut the wire How microgrids can benefit customers and utilities
  21. 21. How can you get involved? • HOMER Demo Workshop this Wednesday – Morning session, August 31 – “Techno-economic modeling of grid-connected microgrids” • HOMER International Microgrid Conference – 4th Annual – New York, New York – November 7th and 8th, 2016
  22. 22. Thank you! John Glassmire Director of Energy Engineering HOMER Energy 1790 30th St. Suite 100 Boulder, CO 80301 USA Office: +1-720-565-4046 Download HOMER Pro at