Inverex Nitrox 13kW Hybrid Inverter 3 Phase LV IP65 (5Y)

The Inverex Nitrox 13kW Three Phase Hybrid Inverter is designed for medium-to-large commercial installations in Pakistan including offices above 5000 square feet, schools, petrol stations, medium-sized hotels, commercial plazas and light industrial facilities with three-phase connections. With 255A battery charging current and 20.8kWp solar input capacity — the highest of any LV three-phase Nitrox model at this price point — it is ideal for businesses looking to significantly reduce WAPDA electricity costs while maintaining reliable backup during load shedding. For a commercial premises in Karachi or Lahore consuming 5000-8000 kWh per month, the Nitrox 13kW with adequate solar panels can reduce the electricity bill by 60-70% within the first year of operation.

The Inverex Nitrox 13kW delivers 13000W output versus 12000W on the 12kW — a 1000W difference that matters for premises with loads between 11kW and 12kW. More significantly, the 13kW supports a higher maximum solar input of 20800W versus 15600W on the 12kW — a 33% larger solar array — allowing greater daily energy generation and faster battery charging. The 13kW also has a slightly higher charging current of 255A versus 240A. Choose the 13kW if your commercial load regularly exceeds 11kW or if you want to maximise solar panel deployment on a large commercial roof with more than 30 panels. At Rs 655,000 versus Rs 750,000 for the 12kW, the 13kW is also better value per kW of output.

Up to 10 units of the Inverex Nitrox 13kW Three Phase can be connected in parallel, scaling total output from 13kW to 130kW. For a large commercial complex in Karachi or Lahore with a 60-80kW peak load, 5-7 units in parallel with 80-100kWh of lithium battery storage provides complete independence from WAPDA load shedding. This modular parallel approach is increasingly preferred by Pakistani commercial developers because it allows phased investment — start with 2-3 units, add more as the business grows or energy costs increase. Each unit contributes to the total system and provides redundancy; if one unit requires maintenance, the remaining units continue to operate.

Yes, the Inverex Nitrox 13kW Three Phase is compatible with both Lead-Acid and Lithium-ion batteries in the 40-60V low voltage range. For commercial applications in Pakistan where system reliability and low maintenance are critical, LiFePO4 lithium batteries are strongly recommended. A single Sunwoda Atrix Max 16kWh battery provides 16kWh of usable storage — at 13kW peak draw, this gives approximately 1.2 hours of full backup. For 6-8 hours of commercial backup, 3-4 units of 16kWh batteries in parallel (48-64kWh total) are recommended. The Nitrox 13kW uses self-adaption to BMS for automatic communication with lithium battery systems, ensuring safe and optimal charging without manual configuration.

For a typical commercial premises in Pakistan consuming 6000 kWh per month at an average tariff of Rs 50-60 per unit (2026 commercial rates), the monthly electricity bill is Rs 300,000-360,000. A properly sized Inverex Nitrox 13kW system with 20kWp of solar panels and 32kWh of battery storage generating 3000 kWh per month can reduce this bill by Rs 150,000-180,000 monthly. Total system cost for this setup is approximately Rs 4-5 million. This gives a simple payback period of 27-33 months — well within the 5-year inverter warranty and the 25-year panel warranty period. After payback, the system generates net savings of Rs 1.8-2.2 million annually, making solar with the Nitrox 13kW one of the highest-return capital investments available to Pakistani businesses today.