Grid & off-grid

Net metering calculator, Mississippi

Enter your exact usage, system size, and rate details to see how Mississippi's net metering policy affects your solar bill, with precise controls for season, tiered rates, and fixed fees.

Your numbers

1 Project details Optional
Shown on your exported report. Leave blank to skip.
2 Your usage and system
Find this on a recent utility bill, usually labeled kWh used.
Use your quoted or planned system size. Panel count times panel wattage divided by 1,000 gives a rough figure.
Solar production swings seasonally; pick a specific month type to see how your bill shifts.
Most utilities charge a flat customer or connection fee regardless of usage.
3 Your location and rate
Defaulted to Mississippi's average peak sun hours. Adjust if you know your local figure.
Defaulted to Mississippi's current average residential rate. Your utility's actual rate may differ.
Mississippi typically credits exports around 35% of retail. Net metering credited at avoided cost plus a small adder rather than full retail.
Some utilities charge progressively higher per-kWh rates as monthly usage climbs into higher tiers.
Accounts for inverter loss, wiring loss, dust, and temperature derate combined.
Informational only. A monthly cycle means unused export credit does not carry to the next bill; annual and rolling cycles do.

How it works

Three steps to your Mississippi solar bill estimate

Step 1

Enter your usage, system size, and season

Pull your monthly kWh from a recent bill and enter your planned or quoted system size in kW. If you only know your panel count, multiply it by each panel's wattage and divide by 1,000 to get a kW figure first. Select a season to model a specific month rather than only an annual average.

Step 2

Confirm your rate, tier, and export credit

Mississippi's typical residential rate and export credit level are filled in by default. Swap in your utility's actual tariff numbers, tier bracket, and fixed monthly fee if you have a recent bill or interconnection agreement showing them.

Step 3

Compare the result to a full retail scenario

Run the net billing vs net metering comparison tool to see exactly how much Mississippi's current export credit rate costs you compared to full 1:1 retail crediting.

How net metering works in Mississippi

A 2015 rule applies only to the two big investor-owned utilities

The Mississippi Public Service Commission established its net metering framework in December 2015, and it applies specifically to Entergy Mississippi and Mississippi Power, the state's two largest investor-owned utilities. Electric cooperative members fall outside this rule entirely and need to check with their specific cooperative for its own buyback terms, which can differ meaningfully from the PSC-mandated structure; Mississippi's tax credit and rebate estimator applies regardless of which structure covers you.

Credits are avoided cost plus a fixed adder, not a percentage of retail

Rather than a flat percentage of the retail rate, Mississippi's export credit is structured as the utility's current avoided energy cost plus a PSC-approved adder, currently 2.5 cents/kWh. As of a January 2025 order, Entergy Mississippi's combined rate sits at 5.5 cents/kWh for most customers, or 7.5 cents/kWh for those on the tariff's low-to-moderate income adder. The credit rate only matters once it becomes a payback period. The payback period calculator in our Savings & Payback section can help you work out how long the system takes to pay for itself.

A separate incentive exists for the first 1,000 low-income enrollees

Beyond the standard low-to-moderate income adder, the first 1,000 qualifying low-income customers to enroll in net metering receive an additional 2 cents/kWh credit, available for 15 years, at either Entergy Mississippi or Mississippi Power. Eligibility is based on household income at or below 225% of the federal poverty line. The tax credit and rebate estimator picks up where this leaves off, using the figure you just found.

Credits carry over monthly with no expiration date

Unlike states that cash out or expire unused credits at a fixed annual true-up, Mississippi's rule provides for unlimited monthly carryover of excess bill credits, which removes some of the pressure to size a system precisely to your annual usage.

Interconnection and the off-grid comparison

Both Entergy Mississippi and Mississippi Power require a standard interconnection application before a system can be energized, and may charge a study fee for larger systems; the grid interconnection cost estimator covers what to budget for. And with export credits sitting well below retail, self-consumption carries real weight in Mississippi, and staying grid-tied still beats full off-grid despite the reduced export rate, as the grid tie vs off grid comparison tool shows.

Questions

Frequently asked

The Mississippi PSC's 2015 rule applies to Entergy Mississippi and Mississippi Power, crediting exports at avoided energy cost plus a 2.5 cent/kWh adder. Entergy's combined rate is currently 5.5 cents/kWh, well below the roughly 16.2 cent retail rate.

The average residential rate in Mississippi is about 16.2 cents per kWh. The Mississippi PSC's 2015 rule requires Entergy Mississippi and Mississippi Power to offer net metering at avoided cost plus a fixed adder.

It's the utility's current avoided energy cost plus a PSC-approved adder of 2.5 cents/kWh, rather than a flat percentage of retail. As of a January 2025 order, Entergy Mississippi's combined rate is 5.5 cents/kWh for most customers, or 7.5 cents/kWh for those eligible for the tariff's low-to-moderate income adder.

Not under the PSC's 2015 rule, which applies specifically to Entergy Mississippi and Mississippi Power. Electric cooperative members fall outside that mandate and need to check directly with their specific cooperative for whatever buyback terms it offers, which can differ from the state-mandated structure.

Related tools

Compare Mississippi's policy to other structures

Grid tie vs off grid comparison Net billing vs net metering Buy all sell all vs net metering Avoided cost rate calculator Grid export cap calculator Grid interconnection cost estimator Grid tie with battery backup comparison All grid and off-grid tools