Solar Panel Calculator for Mississippi (MS)

Q: How many solar panels do I need in Mississippi?

With 4.6 peak sun hours per day and 400W panels, a typical Mississippi home using 9160 kWh/month needs approximately 208 panels (83.20 kW system). This accounts for an 80% system efficiency derate factor per industry standards.

Q: How much does solar cost in Mississippi?

The average solar installation cost in Mississippi is approximately $2.85 per watt before incentives. A 83.20 kW system costs about $237,120 before the 30% federal ITC, bringing the net cost to approximately $165,984.

Q: What is the solar payback period in Mississippi?

Based on electricity rates of $0.131/kWh and 4.6 peak sun hours, a typical solar system in Mississippi pays for itself in approximately 11.3 years. Over 25 years, estimated net savings is $200,011.

Q: Does Mississippi have net metering?

Mississippi net metering status: Limited. Contact your local utility for the most current export rates and program details.

Q: What solar incentives are available in Mississippi?

Solar incentives in Mississippi include: Federal ITC (30%). Always verify current incentive availability with your installer and the DSIRE database.

Q: What wire size do I need for solar panels in Mississippi?

Solar panel wiring must comply with NEC Article 690. Common sizes include 10 AWG for panel-to-combiner runs (up to 30A), 6 AWG for main DC runs, and appropriately sized AC wiring from inverter to panel. Use our Wire Size Calculator for exact sizing.

Calculate how many solar panels you need in Mississippi, estimated costs after the 30% federal tax credit, payback period, and 25-year savings. Based on 4.6 peak sun hours/day and $0.131/kWh average electricity rate.

Peak Sun Hours

4.6 hrs/day

Avg Rate

$0.131/kWh

Net Metering

Limited

Solar Rank

#44/51

☀️ Mississippi Solar Panel Calculator

Monthly Electricity Usage9,160 kWh

Panel Wattage400W

Desired Offset100%

Your Mississippi Solar System

Panels Needed

208

System Size

83.20 kW

Annual Production

111,754 kWh

Gross Cost

$237,120

Federal ITC (30%)

-$71,136

Net Cost

$165,984

Annual Savings

$14,640/yr

Payback Period

11.3 years

25-Year Savings

$200,011

CO₂ Offset

108.4 tons/yr

Trees Equivalent

1,807/yr

⚠️ Estimates only. Actual costs and production vary. Consult a licensed solar installer. NEC Article 690 compliance required.

Solar System Sizes by Usage in Mississippi

Monthly kWh	Panels	System kW	Net Cost	Savings/yr	Payback
500 kWh	12	4.8	$9,576	$845	11.3 yrs
750 kWh	17	6.8	$13,566	$1,197	11.3 yrs
1,000 kWh	23	9.2	$18,354	$1,619	11.3 yrs
1,250 kWh	29	11.6	$23,142	$2,041	11.3 yrs
1,500 kWh	34	13.6	$27,132	$2,393	11.3 yrs
2,000 kWh	46	18.4	$36,708	$3,238	11.3 yrs
2,500 kWh	57	22.8	$45,486	$4,012	11.3 yrs

Based on 4.6 peak sun hours/day, $0.131/kWh, $2.85/W install cost, 80% derate. 30% federal ITC applied.

Complete Guide to Solar Panels in Mississippi (2026)

Mississippi receives an average of 4.6 peak sun hours per day, providing solid conditions for residential solar. With average residential electricity rates of $0.131/kWh, solar offers long-term savings potential.

Solar Installation Costs in Mississippi

The average cost to install solar panels in Mississippi is $2.85 per watt before incentives. For a typical 8 kW system, that translates to approximately $22,800 gross, or $15,960 after the 30% federal ITC. Available incentives: Federal ITC (30%).

Net Metering in Mississippi

Mississippi net metering status: Limited. Mississippi has limited solar incentives but benefits from good sun hours.

NEC Requirements for Solar in Mississippi

All solar installations must comply with NEC Article 690 — Solar PV Systems. Key requirements:

NEC 690.8 — Circuit Sizing: PV conductors must carry at least 125% of maximum circuit current. For a 10A string, conductors must be rated for 12.5A minimum.

NEC 690.12 — Rapid Shutdown: Module-level shutdown must reduce voltage to 80V or less within 30 seconds. Critical for firefighter safety.

NEC 690.31 — Wiring Methods: USE-2 or PV Wire within the array; approved wiring methods (EMT, rigid conduit, MC cable) for building penetrations.

NEC 310.15 — Ampacity Derating: Conductors in conduit must be derated per Table 310.15(B)(3)(a). Account for seasonal temperature variations when sizing conductors. Use our Wire Size Calculator and Derating Calculator for proper sizing.

Solar Wire Sizing for Mississippi

Panel strings to combiner box: Typically 10 AWG USE-2 or PV Wire for runs up to 100 feet. Use our Solar Wire Size Calculator to verify.

DC main run to inverter: Usually 6 AWG or 4 AWG THWN-2 in conduit. Keep DC voltage drop under 1.5% with our Voltage Drop Calculator.

AC from inverter to panel: A 7.6kW inverter on 240V draws ~32A, requiring a 40A breaker and 8 AWG copper minimum. Verify with our Breaker Size Calculator.

Environmental Impact

A 83.20 kW system in Mississippi offsets approximately 108.4 metric tons of CO₂ per year, equivalent to planting 1,807 trees annually. Mississippi grid carbon intensity: 0.97 lbs CO₂/kWh.

Disclaimer: Estimates only. Actual costs and production vary by roof orientation, shading, installer, and equipment. Consult a licensed solar installer in Mississippi. NEC Article 690 compliance required for all installations.

Frequently Asked Questions

How many solar panels do I need in Mississippi?

How much does solar cost in Mississippi?

What is the solar payback period in Mississippi?

Does Mississippi have net metering?

What solar incentives are available in Mississippi?

What wire size do I need for solar panels in Mississippi?

Top 10 Solar States Comparison

Rank	State	Sun Hours	Rate	Cost/Watt
#1	California	5.8	$0.267	$2.82
#2	Hawaii	5.2	$0.387	$3.35
#2	Texas	5.3	$0.134	$2.6
#3	Arizona	6.5	$0.134	$2.55
#4	Florida	5.5	$0.145	$2.6
#5	Nevada	6.2	$0.127	$2.55
#6	Massachusetts	3.8	$0.268	$3.2
#7	New Jersey	4.2	$0.175	$2.9
#8	New Mexico	6.2	$0.137	$2.75
#9	Colorado	5.5	$0.148	$2.9