Four projects successfully completed Stage III of the Solar Energy Grid Integration Systems (SEGIS) program, paving the way for increased amounts of photovoltaic (PV) solar electricity to flow seamlessly into the nation’s electrical grid. These projects are part of the U.S. Department of Energy’s ongoing work to improve grid reliability as solar energy technologies reach cost competitiveness with conventional sources of electricity. In workshops held in September 2011, each project demonstrated the work completed under the SEGIS program. Click on the final presentation links below to view the project results. Learn more about these projects on the Sandia National Laboratories website.
Petra Solar (South Plainfield, New Jersey)
This project showcased its GridWave, which enables distribution utilities to proactively manage grid effects caused by the fluctuations in renewable power. The inverter addresses grid interactivity, PV system reliability, and safety with a low-cost, easy-to-install, modular and scalable inverter power architecture.
Below are presentations from a workshop on September 29, 2011.
- PSE&G’s Solar 4 All™ Program
- Challenges of Large Scale PV Integration
- Distributed Smart Solar Solutions with GridWave Technology
- Smart Grid Integration of PV in Florida
- U.S. Solar Market: Trends and Dynamics
Below are animations from the workshop.
- GridWave – Voltage Ride Through
- GridWave – Microgrid Operation and Management
- GridWave – Automated Voltage Regulation: Over Voltage Mitigation
- GridWave – Automated Voltage Regulation: Under Voltage Mitigation
Princeton Power (Princeton, New Jersey)
This project unveiled their Demand Response Inverter™ power controller on a 200-kilowatt (kW) solar array and lithium-ion energy storage system. The inverter is optimized for integrated control capabilities and low-cost, high-quality manufacture.
Below are presentations from a workshop on September 28, 2011.
PVPowered (Bend, Oregon)
PVPowered and partner Advanced Energy (Fort Collins, Colorado) demonstrated a synchrophasor-based islanding detection system, improving grid-tied solar inverter performance at both the PV site and distribution feeder. Learn more about this project on the Sandia National Laboratories website.
Below are presentations from a workshop on September 20, 2011.
Florida Solar Energy Center/UCF (Lakeland, Florida)
With partners, including Satcon Technology Corporation (Boston, Massachusetts), FSEC demonstrated its Grid-Smart Inverter Architecture on a 250-kW array, which gives utilities direct control over PV generation.
Below are presentations from a workshop on September 22, 2011.
Agenda (individual presentations available as PDF files)
- Welcome from Host (Lakeland Electric)
- Introduction to Overall Project Objectives and Department of Energy Grid Integration Overview (Sandia National Laboratories)
- Team Objectives and SEGIS Project Approach (Florida Solar Energy Center)
- Grid-Smart Utility Control (Satcon)
- The Shared Inverter: The Solstice Solution (Satcon)
- Ride-Through and Permissive Signal Anti-Islanding (Lakeland Electric, Florida Solar Energy Center, Northern Plains Power Technologies)
- Future Functionality (Satcon)
- Perspective from the Utility Host (Lakeland Electric)
- Perspective from the Owner/Integrator/Developer (SunEdison)
- Wrap Up and Next Up (Florida Solar Energy Center)
For your convenience, you may also download all presentations in a zip file (60 MB).
For more information, visit the conference website.