Innovation drives development: GreenMore wins the "Photovoltaic Science and Technology Award"

NANJING, China — February 3, 2025 — GreenMore has received a Photovoltaic Science and Technology Award for its project "Research and Industrialization of Grid-Forming Energy Storage Bidirectional Converters." The award was announced at a new energy industry event held in Jiangsu, China, and recognizes the development and commercial application of the converter technology.

The awarded project

The project centers on a grid-forming bidirectional converter — the power conversion system (PCS) that sits between a battery system and the grid. Unlike conventional grid-following converters, a grid-forming unit can establish voltage and frequency reference itself, which allows storage systems to support weak grids, operate in microgrids and keep supply stable where grid strength is limited.

Key technical features

• Synchronization without a phase-locked loop — the converter uses a power synchronization strategy similar to a synchronous generator, allowing it to connect and remain stable under weak-grid conditions.
• Voltage and frequency regulation — voltage-reactive power and frequency-active power droop curves let the converter respond to grid voltage and frequency changes.
• Virtual inertia and damping — with the battery, the converter can provide virtual inertia that slows rapid frequency changes and helps damp oscillation.
• Fast active and reactive power response — supports primary frequency regulation, voltage regulation and secondary frequency regulation functions where deployed.
• Seamless on/off-grid switching and parallel operation — critical loads can be supplied without interruption, and multiple units can operate in parallel in microgrid applications.

Field application: mining microgrid in Chile

The converter technology has been applied in a solar-storage-diesel microgrid at a mining site in Chile, configured at 1.3 MW of photovoltaic capacity and 9.1 MWh of energy storage. The system was designed to improve supply reliability for mining operations, increase the share of PV used on site rather than curtailed, and reduce diesel consumption and associated emissions.

China Jiangsu New Energy Industry Conference

"This project started from a practical problem: remote sites and weak grids need equipment that can set the reference, not just follow it," said a GreenMore representative. "The recognition is useful mainly because it confirms the direction — grid-forming capability is becoming a standard requirement in storage tenders, and our product planning reflects that."

About GreenMore

GreenMore is a solar energy company headquartered in Nanjing, China, focused on building-integrated photovoltaics (BIPV), including its core solar roofing tiles, along with solar power and energy storage systems. More on the converter technology is available in the overview of the power conversion system (PCS), and project and cooperation inquiries can be sent through the contact page.