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Solar by state

Solar in Louisiana

Across Louisiana, homeowners pay about 8.6¢/kWh and a typical 6 kW system pays back in roughly 17.4 years after the 30% federal tax credit.

State avg rate 8.6¢/kWh
Typical payback 17.4yrs
Best Solar Value Good

Counties in Louisiana

St. Bernard Parish
14.2¢/kWh · 9,144 kWh/yr
$1,295/yr 9.7 yr payback
St. Martin Parish
11.1¢/kWh · 8,928 kWh/yr
$988/yr 12.8 yr payback
St. Landry Parish
11.1¢/kWh · 8,808 kWh/yr
$975/yr 12.9 yr payback
Acadia Parish
11.1¢/kWh · 8,724 kWh/yr
$966/yr 13 yr payback
Evangeline Parish
11.1¢/kWh · 8,682 kWh/yr
$961/yr 13.1 yr payback
Avoyelles Parish
11.1¢/kWh · 8,610 kWh/yr
$953/yr 13.2 yr payback
Rapides Parish
11.1¢/kWh · 8,382 kWh/yr
$928/yr 13.6 yr payback
Grant Parish
11.1¢/kWh · 8,244 kWh/yr
$913/yr 13.8 yr payback
De Soto Parish
11.1¢/kWh · 8,202 kWh/yr
$908/yr 13.9 yr payback
Sabine Parish
11.1¢/kWh · 8,118 kWh/yr
$899/yr 14 yr payback
Iberville Parish
9.3¢/kWh · 8,862 kWh/yr
$820/yr 15.4 yr payback
Pointe Coupee Parish
9.3¢/kWh · 8,802 kWh/yr
$814/yr 15.5 yr payback
West Baton Rouge Parish
9.3¢/kWh · 8,784 kWh/yr
$813/yr 15.5 yr payback
Allen Parish
8.9¢/kWh · 8,448 kWh/yr
$752/yr 16.8 yr payback
Plaquemines Parish
7.8¢/kWh · 9,672 kWh/yr
$751/yr 16.8 yr payback
Beauregard Parish
8.9¢/kWh · 8,364 kWh/yr
$744/yr 16.9 yr payback
Caddo Parish
8.8¢/kWh · 8,502 kWh/yr
$745/yr 16.9 yr payback
Calcasieu Parish
8.5¢/kWh · 8,772 kWh/yr
$743/yr 17 yr payback
Ascension Parish
8.2¢/kWh · 8,874 kWh/yr
$728/yr 17.3 yr payback
Catahoula Parish
8.3¢/kWh · 8,766 kWh/yr
$728/yr 17.3 yr payback
Jefferson Davis Parish
8.5¢/kWh · 8,610 kWh/yr
$729/yr 17.3 yr payback
Concordia Parish
8.3¢/kWh · 8,724 kWh/yr
$725/yr 17.4 yr payback
Franklin Parish
8.1¢/kWh · 8,826 kWh/yr
$714/yr 17.6 yr payback
Lafayette Parish
8.0¢/kWh · 8,988 kWh/yr
$715/yr 17.6 yr payback
St. Mary Parish
7.8¢/kWh · 9,210 kWh/yr
$715/yr 17.6 yr payback
East Carroll Parish
8.1¢/kWh · 8,814 kWh/yr
$713/yr 17.7 yr payback
East Baton Rouge Parish
8.2¢/kWh · 8,646 kWh/yr
$709/yr 17.8 yr payback
Orleans Parish
7.8¢/kWh · 9,126 kWh/yr
$708/yr 17.8 yr payback
Richland Parish
8.1¢/kWh · 8,754 kWh/yr
$708/yr 17.8 yr payback
West Carroll Parish
8.1¢/kWh · 8,760 kWh/yr
$709/yr 17.8 yr payback
Jefferson Parish
7.8¢/kWh · 9,048 kWh/yr
$702/yr 17.9 yr payback
Terrebonne Parish
7.7¢/kWh · 9,120 kWh/yr
$703/yr 17.9 yr payback
St. James Parish
8.0¢/kWh · 8,766 kWh/yr
$700/yr 18 yr payback
Tensas Parish
8.1¢/kWh · 8,670 kWh/yr
$701/yr 18 yr payback
Bossier Parish
8.2¢/kWh · 8,448 kWh/yr
$696/yr 18.1 yr payback
East Feliciana Parish
8.2¢/kWh · 8,478 kWh/yr
$695/yr 18.1 yr payback
West Feliciana Parish
8.2¢/kWh · 8,472 kWh/yr
$695/yr 18.1 yr payback
Livingston Parish
8.2¢/kWh · 8,454 kWh/yr
$693/yr 18.2 yr payback
Vermilion Parish
7.7¢/kWh · 9,000 kWh/yr
$692/yr 18.2 yr payback
Vernon Parish
8.6¢/kWh · 8,058 kWh/yr
$691/yr 18.2 yr payback
Iberia Parish
7.5¢/kWh · 9,174 kWh/yr
$689/yr 18.3 yr payback
Lafourche Parish
7.7¢/kWh · 8,910 kWh/yr
$687/yr 18.3 yr payback
Madison Parish
7.8¢/kWh · 8,862 kWh/yr
$688/yr 18.3 yr payback
Assumption Parish
7.7¢/kWh · 8,862 kWh/yr
$683/yr 18.4 yr payback
St. John the Baptist Parish
7.8¢/kWh · 8,820 kWh/yr
$685/yr 18.4 yr payback
Morehouse Parish
8.1¢/kWh · 8,412 kWh/yr
$681/yr 18.5 yr payback
St. Helena Parish
8.2¢/kWh · 8,292 kWh/yr
$680/yr 18.5 yr payback
St. Charles Parish
7.8¢/kWh · 8,754 kWh/yr
$679/yr 18.6 yr payback
Cameron Parish
7.5¢/kWh · 8,880 kWh/yr
$667/yr 18.9 yr payback
Ouachita Parish
7.8¢/kWh · 8,610 kWh/yr
$668/yr 18.9 yr payback
Caldwell Parish
7.8¢/kWh · 8,562 kWh/yr
$664/yr 19 yr payback
LaSalle Parish
7.8¢/kWh · 8,562 kWh/yr
$664/yr 19 yr payback
Tangipahoa Parish
7.8¢/kWh · 8,490 kWh/yr
$660/yr 19.1 yr payback
Natchitoches Parish
7.8¢/kWh · 8,442 kWh/yr
$655/yr 19.2 yr payback
St. Tammany Parish
7.8¢/kWh · 8,286 kWh/yr
$645/yr 19.5 yr payback
Washington Parish
7.8¢/kWh · 8,310 kWh/yr
$646/yr 19.5 yr payback
Red River Parish
7.8¢/kWh · 8,262 kWh/yr
$641/yr 19.7 yr payback
Winn Parish
7.8¢/kWh · 8,172 kWh/yr
$634/yr 19.9 yr payback
Lincoln Parish
7.8¢/kWh · 8,076 kWh/yr
$627/yr 20.1 yr payback
Webster Parish
7.6¢/kWh · 8,226 kWh/yr
$622/yr 20.3 yr payback
Union Parish
7.6¢/kWh · 8,160 kWh/yr
$617/yr 20.4 yr payback
Claiborne Parish
7.6¢/kWh · 8,130 kWh/yr
$615/yr 20.5 yr payback
Bienville Parish
7.6¢/kWh · 8,100 kWh/yr
$612/yr 20.6 yr payback
Jackson Parish
7.6¢/kWh · 8,088 kWh/yr
$611/yr 20.6 yr payback
Figures are modeled estimates from NREL PVWatts v8 + EIA. Not affiliated with NREL, DOE or EIA · not financial advice. Last updated June 2026.