The title says "photovoltaic energy system," which sounds like hardware. US10554170B2, granted to Con Edison Battery Storage on February 4, 2020, is really a forecasting patent. Claim 1's load-bearing limitation is the prediction of solar intensity feeding a control decision about storage.
Look at the CPC mix: H02S 50/00 is monitoring/testing of PV; H02J 3/385 is control of a PV source in a network; H02J 7/35 covers charging from a photovoltaic source. The combination describes a system that anticipates how much sun is coming and pre-positions the battery — charging before a cloud, holding before a peak. The cleverness is in the anticipation, not the silicon.
Reading claim 1 strictly, the novelty is the coupling of an irradiance forecast to a dispatch decision. That is a narrow and defensible fence if the specific prediction-to-action mechanism is novel — and a vulnerable one if it reads on generic predictive energy management, of which there was already substantial prior art by 2020.
The commercial implication: a utility-affiliated entity (Con Edison Battery Storage) patenting forecast-driven dispatch in 2020 is an early signal of solar-plus-storage being run as a predictive asset rather than a passive generator. The IP follows the operating model.
The standing caution: a claim on "predict, then dispatch" does not own solar-plus-storage. Dozens of energy-management systems forecast irradiance. The patent fences off one articulation; the dependent claims (not analyzed here) would determine how much daylight is left for competitors — pun fully intended.