The PV Advance–CA21 pairs the industry standard flexibility and functionality of the A8810 AcquiSuite with the IEEE2030.5/CSIP Certified OpenEGrid OMS SU Gateway for California Rule 21 Compliance. The panel also includes a full data set bi-directional revenue grade meter, and ruggedized cellular modem for a complete, powerful, and flexible solution for seamless communication with any IEEE2030.5 compliant DERM or Utility Server.