Mississippi Solar Incentive Programs
14 yr
Avg. payback
$800/yr
Avg. annual savings
None
State tax credit
avoided cost
Net metering rate
Mississippi's Net Renewable Generation Program
Mississippi moved away from traditional 1:1 net metering. Instead, both Entergy Mississippi and Mississippi Power use a net renewable generation (NRG) structure with an avoided-cost base plus a value adder.
How Export Credits Are Calculated
Avoided Cost + 2.5¢
Distributed Generation Value adder on every exported kWh
- Mississippi Power (RENM-3), Solar PV, Jul to Oct: 5.75¢/kWh
- Mississippi Power (RENM-3), Solar PV, Nov to Jun: 5.39¢/kWh
- Low-income customers: +2.0¢/kWh additional for 25 years
- Entergy Mississippi: Similar structure (~6¢/kWh est., verify with Entergy)
- Credit applied: Monthly, in next billing cycle
System Eligibility & Program Caps
- Residential max: 20 kW nameplate DC capacity
- Size limit: Cannot exceed 110% of annual peak demand
- Program cap: 3% of utility's system peak demand
- Self-consumed kWh: Offsets retail rate (~12 to 13¢), most valuable use
- Technology: Solar PV qualifies; wind and other renewables receive slightly different rates
- Source: Mississippi Power RENM-3 tariff (Tier 1)
Low-Income Customers: Better Economics Are Available
If your household qualifies as low-to-moderate income, you receive an additional 2¢/kWh on exports for 25 years, bringing your rate to approximately 7.4 to 7.8¢/kWh. Ask your utility about income qualification thresholds before signing a solar contract. This adder can meaningfully improve payback timelines for qualifying families.
Self-Consumption First, Always
Every kWh you produce and use yourself saves you the full retail rate (~12 to 13¢). Every kWh you export earns only ~5.6¢. Size your 20 kW maximum system to match your actual load, not to maximize production. A well-sized Mississippi system with 80 to 90% self-consumption can achieve a more reasonable payback than one that oversizes and exports heavily.
All Mississippi Solar Incentives
| Incentive | Status | Detail |
|---|---|---|
| Federal Tax Credit (ITC 25D) | EXPIRED | Section 25D expired December 31, 2025. No federal residential credit for 2026 installations. |
| Net Renewable Generation (NRG) | AVOIDED COST + 2.5¢ ADDER | Standard customers receive ~5.4 to 5.8¢/kWh on solar exports (seasonal). Low-income customers receive an additional 2¢/kWh for 25 years. Applies to Mississippi Power (RENM-3) and Entergy Mississippi. Source: RENM-3 tariff (Tier 1). |
| State Income Tax Credit | NONE | Mississippi has no state income tax credit for residential solar. No active legislation as of 2026. |
| Property Tax Exemption | NONE | No statewide property tax exemption for residential solar. Solar-added home value may increase your property tax assessment. |
| Sales Tax Exemption | NONE | Mississippi's 7% state sales tax applies to residential solar equipment. On a $25,000 system, that adds approximately $1,750 in upfront cost. No exemption for homeowners. |
| Utility Rebates | NONE | Neither Entergy Mississippi nor Mississippi Power offers solar installation rebates for residential customers. |
| USDA REAP | FARM/RURAL BUSINESS ONLY | Agricultural producers and rural small businesses may qualify for grants covering up to 50% of project cost. |
Mississippi Solar Economics in 2026
Payback Reality: 13 to 20 Years on a Typical System
With the federal ITC expired, no state credits, a 7% sales tax on equipment, and export credits at only ~5.6¢/kWh, Mississippi solar buyers face challenging economics in 2026. A cash-purchased 9 kW system ($20,000 to $27,000 installed plus ~$1,750 sales tax) typically achieves simple payback in 13 to 20 years depending on self-consumption rates. Mississippi has solid solar resources (4.8 to 5.2 peak sun hours) but thin incentive depth. Financed systems (loans or leases) will see longer effective payback against the loan cost.
Watch the 3% Program Cap
Both Entergy Mississippi and Mississippi Power cap total program participation at 3% of their system peak demand. If a utility hits this cap, no new NRG customers can interconnect until capacity opens. Ask your installer to verify current program availability before signing a contract. Mississippi's solar adoption has been limited, so caps are unlikely to be an immediate issue, but it's worth confirming.
Sources & Methodology
Export credit rates and program structure from Mississippi Power Company RENM-3 tariff (mississippipower.com, 2025, Tier 1). Low-income adder, 20 kW residential cap, 3% program cap, and 110% peak demand rule all from RENM-3 (Tier 1). Entergy Mississippi rate (~6¢/kWh) from SurgePV (Tier 2), verify at entergy.com/mississippi. Absence of state incentives consistent across SurgePV, EcoWatch, EnergySage (Tier 2, consistent). Retail rate (~12 to 13¢/kWh) and payback estimates from SurgePV/EnergySage (Tier 2). Not financial or tax advice. Verified October 2026.
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