You can look at these renewable energy options as a kind of alternate source to reduce your monthly bills. You can try making use of them the whole night and gather energy during daytime.
The appliances are also the main aspect in your electric bills so you should know how to them properly. It is correct in case you are still using old designs because they consume more energy in comparison with new ones.
You can also try the most basic way to do it. Try using all-natural light throughout the day and your artificial lighting at night. You can simply the artificial lighting at night and let natural light enter your house during the day.