SPLTRAK Abstract Submission
Extreme Solar: Towards 24-7 Renewable Energy
Sijo Augustine1, Sathishkumar Ranade1, Valerio De Angelis3, Gabriel Cowles2, Jinchao Huang2, Olga Lavrova1, Stanley Atcitty3
1New Mexico State University, Las Cruces, NM, United States
/2Urban Electric Power, Pearl River, NY, United States
/3Sandia National Laboratories, Albuquerque, NM, United States

This paper describes a method of connection and control algorithm for photovoltaic panel-integrated storage that can be interfaced to a grid using commercial dc-ac microinverters. Emulation of an appropriate i-v characteristic allows the integrated panel to operate with any inverter, e.g., peak-power tracking inverter, droop mode, or stand-alone. or a battery inverter in droop mode. Rechargeable zinc-manganese dioxide (ZnMnO2) battery cells developed by Urban Electric Power (UEP) are used as a source of energy storage. The batteries are charged with excess solar and discharged in the evening or when additional power is required. A battery management algorithm is developed, charge/discharge data is collected from each cell, and a proof of concept is demonstrated.