The following guide provides definitions of the various inverter specifications on the Materials page.

Basic Details

Inverter type: Either central inverter, microinverter, or hybrid inverter.

Applicable states: For companies operating in multiple U.S. states or territories. Determines whether the inverter can be added to projects based anywhere or only those in the selected locations.

Manufacturer: The name of the company producing the inverter.

Model: The name or identifying number for the inverter within the manufacturer's product line.

Product image: An image of the inverter which appears on the webquote under the Materials section.

Product YouTube URL: Optional link to a YouTube video with product information for the inverter.

Spec sheet: A PDF of the manufacturer's spec sheet for the inverter model.

Spec sheet pages: Used to specify which pages should be included in permit plan sets featuring the inverter.

Selling price per unit: For BOM-based pricing.

Additional document: Optional supporting materials related to the inverter.

Warranty: Duration in years of the warranty period for the inverter.

Electrical Details

Maximum DC power (W): This indicates the maximum DC power input to the inverter.

Maximum input short circuit current DC (A): This indicates the maximum short circuit current that can be input on the DC side of the inverter.

Minimum/nominal input voltage DC (V): This indicates the minimum voltage that can be input on the DC side of the inverter.

Maximum operating current in DC (A): This indicates the maximum operating current on the DC side of the inverter.

Maximum input voltage DC (V): This indicates the maximum voltage that can be input on the DC side of the inverter.

Nominal voltage AC: This indicates the nominal AC voltage output by the inverter.

Rated AC power output (V⋅A): This indicates the maximum AC power output from the inverter.

Maximum continuous current out AC (A): This indicates the maximum continuous AC current that may be output from the inverter.

Peak efficiency (%): The peak percentage of DC input power the inverter can convert to AC power as output.

CEC weighted efficiency (%): The California Energy Commission (CEC) is for climates which experience higher irradiation intensity, such as the southwestern United States. It is a weighted efficiency obtained by assigning a percentage of time that the inverter resides in a given operating range.

MPPTs: Maximum power point tracking (MPPT) is a function in solar inverters that adjusts voltage and current to ensure panels operate at their most efficient point. It helps maximize the power output from the solar array under varying sunlight and temperature conditions.

Number of MPPTs: Total quantity of separate MPP trackers supported by the inverter.

Number of DC inputs: How many separate PV strings can be physically connected to the designated MPPT.

Maximum input short circuit current DC (A): Maximum input short circuit current DC supported for the designated MPPT.

Maximum operating current in DC (A): Maximum operating current DC for the designated MPPT.

Global MPPT support: Feature which ensures maximum power harvest under shading or complex conditions by finding the global maximum power point instead of a local one.

Optimizer compatible: If enabled, this checkbox indicates that the inverter may be used in conjunction with optimizers.

Physical Details

Height (in or mm): The length of the long side of the inverter.

Width (in or mm): The lengh of the short side of the inverter.

Depth (in or mm): The length of the distance from front to back on the inverter.

Total weight (lb or kg): The total combined weight of the installed inverter and its required mounting equipment.

Input channels: The total number of DC inputs available on the inverter across all MPPTs combined.