State

How much solar do I need in Louisiana?

Modern house with rooftop solar panels and a straight concrete driveway at golden hour

Louisiana averages 5.32 peak sun hours a day, so 1 kW of panels makes about 1,479 kWh a year. A home using 10 kWh a day needs about 2,506 W of panels.

Daily usePanel watts400 W panelsBattery for 1 day
5 kWh/day1,253 W46.17 kWh
10 kWh/day2,506 W712.35 kWh
20 kWh/day5,013 W1324.69 kWh
30 kWh/day7,519 W1937.04 kWh

Peak sun hours: 5.32; annual output 1,479 kWh per kW. Source: state table derived from NREL PVWatts v8; check your exact address in NREL PVWatts.

Questions

How many peak sun hours does Louisiana get?

5.32 kWh/m²/day on average, from NREL PVWatts v8 data.

How many solar panels for a house in Louisiana?

Louisiana averages 5.32 peak sun hours a day, so 1 kW of panels makes about 1,479 kWh a year. A home using 10 kWh a day needs about 2,506 W of panels.