Will my utility approve a 16.2kW array?
This is the question to answer first, and the honest answer is that it depends on your territory and often on your service size. Many utilities fast-track residential systems up to around 10kW and apply a supplemental review above it. Some cap export at your historical consumption. Some require additional protective equipment or move you to a commercial tariff. The inverters' UL1741 and UL1699B listings settle the equipment half of the question. The size half is local. Call your utility before you order, not after, and if the answer is unfavourable the same kit runs fully off-grid.
Does this kit include everything I need to install it?
Every major component, including both enclosed battery cabinets, which on most systems at this scale are separate purchases: both hybrid inverters, all ten batteries, all thirty-six panels, four PV breakers, four sets of solar extension cable, both DC breakers and the battery cabling. What varies is the building side, and at this size that side is a project in itself: ground-mount structure or racking across multiple roof planes, conduit, junction boxes, building wire, a critical loads panel, and labor. If you are interconnecting, add the utility application, any protective equipment they specify, and the electrician's time.
Can ten batteries really keep up with two inverters?
The ten-battery bank provides 51.2kWh of nominal storage. Actual output depends on battery conditions, system settings, and installation. The two PRO inverters have a combined battery discharge power limit of 20kW before conversion losses, separate from their 22.8kW combined nominal AC output rating.
How should the panels be wired?
Four strings of nine, two to each inverter. Nine in series operate near 271V and reach 315V open circuit, comfortably inside the 70 to 540V window and far below the 600V ceiling even in cold weather, at 16A per string against a 22A limit. That uses two of the three MPPT inputs on each inverter, so two remain free if you add panels later.
What does running two hybrids in parallel involve?
Your installer must connect and configure both SGN-11K15PRO inverters according to the manufacturer’s parallel-operation instructions. Together, they provide 22.8kW of nominal AC output. Their combined battery discharge power limit is 20kW before conversion losses, so available output depends on the power sources and operating conditions.
How much energy will this generate daily?
The 16.2kW array produces roughly 65 to 81kWh per day at 4 to 5 peak sun hours, plus whatever the rear faces add. For almost any single property that is well above consumption, which is the intent on a hybrid: the surplus offsets or exports rather than sitting idle.
Do I have to connect it to the grid?
No. The same kit runs fully off-grid, and at 16.2kW of array with 51.2kWh of storage it does that very well. You lose the ability to draw from the utility on a bad week and you lose any export credit, but you skip the interconnection process entirely. For some customers that trade is worth making on its own.
Can I install this myself?
We recommend professional installation. This kit includes thirty-six panels, two inverters weighing 103.6 lbs each, and two battery cabinets. Your installer should handle mounting, electrical connections, and parallel inverter configuration according to the manufacturer’s instructions and local requirements.
Is LiFePO4 safe?
It's the safest widely available lithium chemistry, with strong thermal stability, long service life and minimal maintenance. These cells carry UL1973 and UN38.3, and every battery includes BMS protection against overcharge, deep discharge, overheating, overload and short circuit.
