Sungrow’s Stem Cell Grid Technology was a finalist for The smarter E AWARD 2025 under the Smart Integrated Energy category
According to the company, utility ESS featuring this technology provides grid support services and grid-forming technology
It enables the utility ESS to deliver an inertial response on a ms level to stabilize the power frequency
Sungrow, a well-known supplier of PV inverters and energy storage solutions, was a finalist under the Smart Integrated Energy category of The smarter E AWARD 2025 for its power grid stability technology.
This category recognizes technology solutions that aim at the “modernization, digitalization, and flexibilization” of the power grid into a smart grid, which in turn enables a stable power supply (24/7) of exponentially growing renewable energy (RE).
The jury emphasized that the so-called ‘Stem Cell Grid Technology’, when blended with utility ESS, meets grid operators’ requirements and offers grid-forming technology.
Given the growing volume of RE, which Sungrow categorizes as intermittent, coupled with reduced synchronous generators (such as thermal power plants, among others) with low system inertia, the operational stability of power systems is affected. This technology’s low-voltage ride-through (LVRT) and high-voltage ride-through (HVRT) features support voltage regulation by providing dynamic reactive power compensation to address voltage dips or overvoltage at the point of connection (POC). The ESS simulates the voltage regulation function of synchronous generators to support grid reconstruction at the ms level. The rotating inertia of synchronous generators resists sudden fluctuations in grid frequency (a critical parameter for grid stability) by dynamically adjusting the drop during sudden grid load variations. Conversely, the high share of RE sources, which don't have rotating parts, reduces inertia in the power system with consequent frequency instability. Sungrow says that the technology enables the ESS to provide an inertial response at the ms level, stabilizing frequency on the power grid.