Skip the Hassle: How to Configure Your Solar Energy System Quickly & Easily

Published by Mars January 19,2026

Solar System Configuration Guide: From Residential to Commercial

Leveraging Mars Solar’s years of on-site installation expertise and insights into real customer demands, we’re here to guide you through mastering solar system configuration in no time — whether it’s for residential off-grid setups or large-scale commercial energy storage projects.

System Power Range Overview

System Type	Power Range
Residential Solar Systems	1KW – 20KW
Commercial Solar Systems (Farms, Hospitals, Schools, Communities, Factories, Office Buildings)	30KW – 300KW

Residential System Breakdown by Household Size

Small homes: 1KW – 5KW

Medium homes: 5KW – 10KW

Large homes: 10KW – 20KW

Commercial System Breakdown by Scenario

Farms, Schools, Office Buildings: 30KW – 100KW

Hospitals, Factories, Communities: 100KW – 300KW

Solar Power System Parameter Table
Principle & Formulas for Configuring solar power system

Solar System Power	1kw	2kw	3kw	5kw	10kw
Solar Inverter's Power & DC Voltage	1KW 24V	2KW 24V	3KW 48V	5KW 48V	10KW 96V
MPPT Controller Input PV Voltage Range	DC15V--DC130V	DC15V--DC130V	DC45V--DC150V	DC45V--DC150V	DC120V--DC280V
solar panel capacity	Power: 600W/pcs, VOC: 51V	Power: 600W/pcs, VOC: 51V	Power: 600W/pcs, VOC: 51V	Power: 600W/pcs, VOC: 51V	Power: 600W/pcs, VOC: 51V
Number of solar panels in series (pcs/series)	2pcs	3pcs	3pcs	3pcs	5pcs
DC voltage of Lithium Battery	24V	24V	48V	48V	96V

Solar System Power	15kw	20kw	30kw	50kw	80kw	100kw
Solar Inverter's Power & DC Voltage	15KW 192V	20KW 192V	30KW 384V	50KW 384V	80KW 384V	100KW 384V
MPPT Controller Input PV Voltage Range	225V--760V	225V--760V	450V-800V	450V--800V	450V--800V	450V--800V
solar panel capacity	Power: 600W/pcs, VOC: 51V	Power: 600W/pcs, VOC: 51V	Power: 600W/pcs, VOC: 51V	Power: 600W/pcs, VOC: 51V	Power: 600W/pcs, VOC: 51V	Power: 600W/pcs, VOC: 51V
Number of solar panels in series (pcs/series)	10-13pcs	10-13pcs	13-16pcs	13-16pcs	13-16pcs	13-16pcs
DC voltage of Lithium Battery	192V	192V	384V	384V	384V	384V

Solar System Power	80kw	100kw
Solar Inverter's Power & DC Voltage	80KW 384V	100KW 384V
MPPT Controller Input PV Voltage Range	450V--800V	450V--800V
solar panel capacity	Power: 600W/pcs, VOC: 51V	Power: 600W/pcs, VOC: 51V
Number of solar panels in series (pcs/series)	13-16pcs	13-16pcs
DC voltage of Lithium Battery	384V	384V

How to configure a correct system?

First, the DC voltage of all components in the system must be the same.

(FV combiner, MPPT controller, Solar Inverter, Lithium battery/Gel battery)

Common DC Voltage of solar inverters and lithium batteries
12V/24V/48V/96V/192V/240V/384V

How to recommend a system for family type customers?

(1) Family has 1pcs refrigerator, pcs washing machine, lighting, TV, computer,

without air conditioner or pump, suggest 3KW Solar System.

(2) 1pcs refrigerator, 1pcs washing machine, lighting, TV, computer,

with 1pcs air conditioner, suggest 5KW Solar System.

(3) 1pcs refrigerator, 1pcs washing machine, lighting, TV, computer,

with 2pcs air conditioner, suggest 10KW Solar System.

(4) 1pcs refrigerator, 1pcs washing machine, lighting, TV, computer,

with 3pcs air conditioner, suggest 15KW Solar System.

Before configuring a solar system solution, customers are required to provide the following information:

(1) How much eletricity consumption kwh do they need consume monthly/daily? ---in order to calculate out the solar panel quantity.

(2) How much peak working power of all loads? -- in order to configure the rated power for the solar inverter.

(3) How many hours do the load need work after sunset? -- in order to configure the capacity for Lithium battery.

Based on experience and the budgets of many customers, Generally, the minimum capacity of lithium batteries is configured according to the discharge rate of 0.5C.