Indiana Sunlight Hours & Renewable Energy Information

Indiana Sun Light Hours Map

Quick Green Energy Summary for Indiana


State Sunlight Rank: 36/50

Average Annual Sunlight Hours: 2400 hours

Clear Days: 88 days per year

Summer Peak Sun Hours: 5.02 hours per day

Winter Peak Sun Hours: 2.55 hours per day

Average Peak Sun Hours : 4.21 hours per day


State Wind Rank : 35/50

Average Annual Wind Speed: 0.04 miles per hour

More Information on Indiana Green Energy

Indiana, the crossroads of America, ranks pretty low in average peak sun hours compared to many other states in the US. But that hasn’t stopped Indiana from being a strong competitor in the quest for alternative energy sources.

The installed capacity of Indiana has been increasing greatly over the past several years with help from the government, and help from the long peak sun hours of the summertime. There are companies in Indiana that offer feed-in-tariffs which is a way to get a solar power system installed under a long term contract that incentivizes people to use solar power.

Indiana, despite the low average peak sun hours, is a very competitive state in the country when it comes to renewable energy. Indiana is also the home of one if the biggest wind turbine farms in the country.

It is important to remember, if you are looking to install solar panels then you have to understand that not every hour of sunlight will be converted at the same efficiency ratio. Certain factors such as time of year, the angle of both the sun and panels, varied cloud coverage, tracking mounts, or if you are using the system year round are just a few of the factors that could affect efficiency ratios.

Because of this you should look at average of peak hours of sunlight per day, which are the most ideal sunlight hours of solar insolation.

Indiana receives an average of 4.21 peak sun hours a day on a fixed solar panel.