Collection: Institutional & Public Solutions

For Institutional & Public, the decision centres on whether the site needs three-phase power and on its bed, room or student count.

This tier is represented by the 67.58 kWh three-phase system, built for 30–50 room hotels, 10–20 bed clinics and hospitals, 200–500 student private schools, and urban office campuses. It runs three inverter units in a balanced 1+1+1 topology — 11 kW per phase — so three-phase equipment such as pool pumps, lifts and commercial kitchens connects directly, while single-phase loads (guest rooms, lighting, air conditioning, laundry) share across the phases.

First confirm whether the site has three-phase equipment: if it runs pumps, lifts or a large kitchen, choose a three-phase solution rather than a single-phase commercial one. On capacity, the 67.58 kWh system produces about 148.8 kWh per day and our reference 30–50 room hotel profile totals about 146.5 kWh, so it runs near full output; plan load staggering in the rainy season. If your single-phase commercial load stays under 12 kW, the 20.48 kWh medium-commercial tier is enough; if you need larger three-phase capacity such as the 135.16 kWh 4+1+1 industrial park level, move to the Industrial & Micro-grid tier.

Institutional projects usually run multiple inverters on one shared battery bank, so installation must follow the rules: one shared bank, equal cable lengths, matched AC polarity, and a separate PV array per unit. Each inverter keeps its own dual MPPT, giving six MPPT inputs across a large roof, and the platform parallels up to six units so capacity can double on the same equipment. The 67.58 kWh bank provides about 60.8 kWh usable at 90% depth of discharge, enough to ride an overnight outage on essential loads until solar recharges it the next morning.