i. New condition and free of defects, recalls, or unauthorized materials; ii. Outdoor rated for dusty conditions with IP65 or greater; iii. Cell type: Samsung SDI Mega E3, 3.68 V / 100Ah or equivalent; iv. Battery capacity 556 kWh+; v. RS485, Ethernet communication interfaces; vi. Modbus RTU, Modbus TCP communication protocols; vii. Nominal AC Power of 250 kVA; viii. Maximum Total Harmonic Distortion (THD) less than 3% (at nominal power); ix. Maximum THD of off-grid output voltage less than 3% (linear load); x. Power factor greater than 0.99 (at nominal power); xi. Grid voltage range of 432 to 528 V (nominal 480 V 3-phase); xii. Grid frequency range of 55 to 65 Hz; xiii. Transformerless isolation method; xiv. Degree of protection according to IP54 and NEMA 3R at a minimum; xv. Rated for operation in: a. temperatures -22 to 122 degrees Fahrenheit; b. humidity levels between 0 and 95 %; and c. altitudes up to 9,842 ft. xvi. Appropriate cooling concept: heating, ventilation, air conditioning, or forced air; xvii. Appropriate fire suppression system; and xviii. Built according to the following certificates: UL 1642, UL9540, UL9540A, UL1973, UL1741, UL 1741 SA, UL 62109-1, IEEE 1547.
