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Solar by stateSeptember 2026

Solar in Mississippi: how the rules work

How Mississippi credits the power solar panels send back to the grid, what homes there pay for electricity, and what to check when a home with solar is bought or sold.

Export credit
Net billing
About 42% of retail
Largest utility
Entergy Mississippi
Home electricity
15.2¢/kWh
Rising ~1.7%/yr over 10 years (EIA)
Typical installed price
$2.29/W
State average quote before incentives (EnergySage)

How exported power is credited

Power sent to the grid is credited at an export rate well below retail, often tied to the utility’s avoided cost.

Under the MPSC Net Renewable Generation Requirements (2015, amended July 12, 2022; 20 kW residential cap), excess energy delivered to the grid is credited at the utility's avoided energy cost. A 2.5 cents/kWh 'non-quantifiable benefits' adder is added, and low-to-moderate-income customers (up to 250% FPL, later reported as 225%) get an extra 2 cents. The 2022 order locks both adders for 25 years from sign-up. pv magazine (April 2025) reports total credits of about 5.5 cents/kWh (non-LMI) and 7.5 cents (LMI). The MPSC had suspended LMI and school incentives in 2024 and lifted the suspension in April 2025. Credits are applied monthly with unlimited carryover, refundable only when the customer disconnects. The MPSC consumer guide says excess power is credited but does not clearly say whether netting is instantaneous or over the billing period. Entergy Mississippi charges a one-time $95 fee ($135 if a meter is needed), and the rule also provided upfront rebates (~$3,000-3,500) for eligible customers. Entergy Mississippi's specific avoided-cost value was not found in a primary source. Share basis: ~5.5 cents vs ~13 cents residential retail (estimate).

What changes for a home with solar

A savings estimate that assumes full retail credit for exported power overstates the value of that power for systems on the current rules. Power used in the home still offsets the full retail rate.

Older systems are often grandfathered on earlier, better terms for a set number of years. Which rules a particular system is on depends on its interconnection date, stated in the note above.

Electricity here costs about 15.2¢ per kWh (2026) and has risen about 1.7% a year over the last decade. A lease or PPA escalator above that pace makes the solar payment rise faster than utility rates have.

When a home with solar is sold in Mississippi

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Sources

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