45KW Solar Packages

At 4.5 peak sun hours, the 45.1 kW array is estimated to produce approximately 202,950 Wh per day. This makes it suitable for properties consuming around 6,000 kWh per month, which is far beyond the needs of a typical single-family home.

This tier is generally intended for working properties that combine a full residence with agricultural, commercial, or light-industrial loads. A typical example may include a three- or four-bedroom home with central HVAC, a 1 to 3 hp well pump, a shop or barn with compressors and power tools, and refrigeration or cold-storage equipment operating at the same time.

The system is sized not only to run these loads, but also to maintain enough solar production to recharge the battery bank while the property is active.

If your monthly consumption is below approximately 4,000 kWh, a smaller system may be a more cost-effective choice. If you use 5,500 kWh or more, or expect to add major loads within the next two to three years, this tier provides room to grow without redesigning the entire system.

Each Sol-Ark 18K provides three independent MPPT inputs, giving the three-inverter system nine total tracking channels. This allows different sections of the array to operate independently, so shading, soiling, or a fault affecting one string does not reduce production across the entire system.

The 82 panels may be divided between the three inverters in groups such as 28, 27, and 27 panels. Each inverter's assigned panels can then be divided across its three MPPT inputs in strings of approximately nine or ten panels, subject to the panel specifications, local temperature conditions, and final engineering design.

String length must be calculated carefully so the array voltage remains within the inverter's operating limits, including during cold weather when panel open-circuit voltage increases.

Panels with different orientations or significantly different shading conditions should not be placed on the same MPPT channel. Combining a south-facing string with a southeast-facing string can force the tracker to operate at a compromise point and reduce production from both.

The string layout should be finalized before conduit and wiring are installed. Changing string assignments after installation can require substantial rewiring and additional labor.

Eighty-two panels at approximately 26 square feet each provide around 2,130 square feet of panel surface area. Once row spacing, winter shading clearance, equipment access, and maintenance pathways are included, the complete ground-mount footprint may require approximately 2,800 to 3,500 square feet on level terrain.

Sloped, irregular, or partially shaded sites may require additional space. The area should have good solar exposure and enough access for construction equipment, panel handling, and future maintenance.

Soil conditions determine the correct foundation method. Rocky or dense clay soils may require drilled or augered post holes, while loose or sandy soils may require deeper foundations, concrete reinforcement, or helical anchors.

Before ordering the mounting system, confirm soil conditions and foundation requirements with the racking provider, engineer, or installer. This helps prevent delays caused by incompatible post or anchor designs.

Pre-delivery preparation should include clearing and grading the array area, confirming the final layout, marking post locations, planning drainage, and preparing the conduit route between the array and inverter location. Conduit depth and installation requirements must follow local electrical codes and the approved engineering plans.

The Sol-Ark platform supports additional parallel inverters, but most properties will expand their battery storage and solar array before adding another inverter.

Battery expansion is usually the simplest first step. Additional compatible OMO Freedom Series batteries can increase overnight capacity and reduce generator runtime, provided the battery bank, conductors, disconnects, and communication system are designed for the added capacity.

Solar-panel expansion may follow once the battery bank can absorb the additional production. Leaving space in the combiner boxes, conduit, mounting area, and electrical enclosures during the original installation can make this process much easier.

Adding a fourth inverter becomes relevant when the property's peak simultaneous demand begins to exceed what three units can reliably support. This may happen after adding a second workshop, larger agricultural equipment, another residence, or other major electrical loads.

An additional inverter may require changes to the AC combining equipment, protection devices, conductor sizing, battery connections, system programming, and panel-string assignments. Expansion should therefore be planned as part of the original system design whenever future growth is expected.

Routine maintenance is relatively limited, but a system of this size benefits from organized monitoring and scheduled inspections.

Each Sol-Ark inverter can be connected to the manufacturer's monitoring platform. Setting up all three units under one account or site view during commissioning makes it easier to compare production, battery behavior, inverter output, and MPPT performance across the system.

Monitoring can help identify a solar string that is underperforming because of dirt, shading, snow, a loose connection, or an electrical fault. It can also reveal unusual battery behavior or differences between the three inverters before the issue causes a larger interruption.

Annual physical inspection should include the panel surfaces, racking and fasteners, wiring condition, MC4 connectors, conduit, grounding, combiner boxes, AC terminals, disconnects, and battery connections. Any inspection or service involving energized electrical equipment should be completed by a qualified professional.

Freedom Series LiFePO4 batteries do not require watering or equalization, but their state of charge, temperature, communication status, and connection points should still be reviewed periodically.

If the system includes a backup generator, operate it under load on a regular schedule and follow the manufacturer's maintenance requirements. This confirms that the generator, automatic-start controls, and inverter integration are ready when extended low-solar conditions occur.